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The SErial Killer (Part 4)

A shot in the dark, but...(TL;DR:) Either Wikipedia's founders, CakeMox, or Keys (in that order of probability.)I think that 15 January 2001 is the day Wikipedia was launched (why this is relevant: 151 January 15th, "just above 2000" -> 2001), so you might try to contact one of Wikipedia's launchers.Also, There's the fedora and the special attention to Ask Ubuntu in an earlier question. Wikipedia says that it runs on a "L A M P platform", where the "L" stands for Linux.

So we can try heading to Unix & Linux SE.Continuing on that, One possible suspect is Keys. The doors and the drawer are open, and you're missing keyboard keys. Another suspect is CakeMox. On the Wikipedia page for Wikipedia Day, there are several pictures of cakes lies, and CakeMox is the only U&L user whose name has to do with cake and who actually has posted stuff. But both of them are pretty strainedly connected to the problem. Also, neither are on PSE, and only CakeMox is on Area 51 and is active enough to be someone we might just sort of know (much more active on Server Fault - top 0.99% overall - than U&L).In case that isn't right...other stuff that doesn't seem to point towards anything......include looking up "wikipedia" on any SE, "Wikipedia Day" on any SE, any of the SE's on Wikipedia, or any of the mentioned Linux distros on Wikipedia. And Ubuntu and Fedora seem to have nothing more in common in relation to the problem.

• Related Questions

How to disable all keyboard keys except one (or two)

Partial answer:however the 2 in 1 functionality does not work as the computer cannot detect being flipped between tablet and laptop mode,So there's no software to react on this event. Which means the first step is to find out what hardware produces that event. Which means getting an overview of what hardware there is, and selecting possible candidates.

My intended solution is to write a script that will disable all keyboard keys except the escape key and some other key (possibly right arrow).Quick overview how keyboard processing works under Linux: Key events are picked up by various kernel hardware drivers, and fed into the kernel input layer. This layer maps scan codes (physical keys) into key codes (standardized keys). The kernel keyboard map then maps key codes into key symbols. You can see the output on this layer using evtest on /dev/input/event* device files.On top of that, X (Wayland work similarly) has its own drivers collecting keyboard events, among them the evdev driver, which collects all events from the kernel input layer. It again maps key codes to key symbols.

There are various ways to disable keys temporaliy, the simplest probably is to "grab" the /dev/input/eventX producing them (you can test the effect with evtest --grab), filter them in your own custom program, and forward your two non-disabled keys to a new input device to inject them again into the keyboard processing layers. You will need to know how to write e.g. C programs for this solution. You can create new virtual input devices with /dev/uinput, see e.g. here

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Clipboard Manager for Windows that allows one paste of all items in one fell swoop

Seems like Clipboard Master fits your requirementIn contrast to Windows, Clipboard Master features a multi-clipboard that allows you to access previously copied entries. Clipboard Master stores up to 10,000 entries.Text, images, files and folders that you copy in Windows or a Windows program are automatically added to the Clipboard Master multi-clipboard. The newest entry is always added to the top of the list in the multi-clipboard.Example: You have to paste multiple cells form Excel into a Word document. Use Clipboard Master to simply copy the cells from Excel one after the other and then switch to Word. You can then paste the copied text all at once. In doing so, you can select whether the text should be pasted separately by blank space, tab, new line or another character.Or you run across a recipe collection in the Internet and would like to send links to certain recipes to an acquaintance via email. Use Clipboard Master to copy the links of the recipes one after another and then paste them in the desired order in your email program. In contrast to the Windows clipboard, you do not have to constantly switch between the browser and your email program; instead you can first "collect" all of the links and then paste them into your email in a single second step.Overview of the "Multi-Clipboard" Feature:https://www.

clipboardmaster.

com/features/features-tour/multi-clipboard.html...Paste content into any Windows programhttps://www.clipboardmaster.com/features/features-tour/clipboard-with-multiple-entries.

htmlYou can also paste all items in Ditto clip with the following steps

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Keyboards plugged to one computer have different failing rows of keys, but work perfectly fine on any other computer

now this is hard. i think it has got to be the software/drivers on your computer. plug in one of your keyboards, then right click my computer (or This PC) and choose 'manage' you will need administrator privileges. on the left collumn, click on 'device manager'. then on the right, right click 'keyboard and choose 'scan for hardware changes'. if nothing shows up (except for the plug and play window that pops up and then disappear after it finishes), expand 'keyboard' . look for the keyboard you are having issues with. then right click it and choose 'properties'. in the 'drivers' tab of the new window, look for 'roll back driver'. press it and wait for windows to roll back to a previous version of the driver. you might have to restart your computer. if the 'roll back driver' box is greyed out, it means that your computer doesn't have a previous version of the keyboard's driver to roll back to. in that case (or if rolling back driver didn't help you), click on 'update driver' you might not need to restart your computer but i am not sure. see if that helps you. try doing this for both keyboards. if you don't know which driver is your keyboard's, or encounter any problem, or that what i told didn't help you, take a screenshot (how to take screenshot: https://www.

java.

com/en/download/faq/screenshot.

xml if you are on a laptop, you will need to hold the fn key while pressing 'prt sc'-print screen or home) and post it in the comment to this reply

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Adding a keyboard shortcut to the compile process in TeXnicCenter

Also with the recently published version 2.0 beta 1 of TeXnicCenter the simple, but unsatisfactory answer is:No, there is no solution inside of TeXnicCenter.Nevertheless some ideas:Was always suggested by percusse: Use SumatraPDF. It supports DDE commands, cf. DDE commands for SumatraPDF. It has a presentation mode with Ctrl L and a fullscreen modus with Ctrl Shift L or F11. See, if one of them fits your favorite read mode of Adobe Reader. This program reloads the PDF itself, no need for closing.

In the rare cases, if you are really in need of opening a PDF file in Adobe Reader, you can do this from the File menu in SumatraPDF, and it will be redirected to the same active page. (Also, if you installed other PDF readers, you can open the file in these from this menu.)Use PDF-XChange Viewer. It has a very similar read mode (key F11). PDF-XChange Viewer does not support DDE commands, but command line arguments instead, one is for closing. For this see in the manual file available as separate download, but included in the installer version.

If you really need to open a PDF file in Adobe Reader, you can do this from a symbol inside of PDF-XChange Viewer, and again it will be redirected to the same active page. The read mode is remembered by the program also after closing.Use a program like AutoHotkey as your PDF Viewer. Of course, then you are yourself responsible for programming the open and close rules for your actual PDF Viewer.

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Is a sleeping laptop more likely to be damaged by water than if it were shut down? closed

For instance, if my drink spills on my laptop while it is off, I would expect damage to be minimal once it has been allowed to dry off completely. What about sleep mode? I tend to shut off my computer more often with the objective of being more safe. Should a spill occur, there are more components with power running through them in sleep mode versus off.What you are saying is pretty much a spot on assessment. If your computer is in sleep mode it still has some power running through it. So if water spills, the chances of it shorting something out right away are higher than if the system is shutdown completely.That said, a shutdown machinein and of itselfstill has its own risks. If the laptop has a full charged batter in it, the spit could trigger the power on/off button and start the machine up while liquid is running through the system. This is why many people advise immediately pulling the battery out of a system when a spill happens. Heck, even it was running only on AC power, that power on/off button could still come into play.Also, even if the power on/off button is not triggered, there is a risk of the battery itself being shorted out in the spill. And when that happens, all bets are off.So when all is said and done, a sleeping laptop is slightly more of a risk than a completely shutdown laptop. But a completely shutdown laptop is still at risk if it still has a charged battery installed.

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How can I restore lost AltGr keyboard entry functions?

There are some configuration files in /.config/xfce4/ related to keyboard configuration as can be seen from key appearing in them. They work per user, as one can see from their location in the file system. AltGr worked for user gast so I looked for configuration files containing the word key.Since I had a user account a where the keyboard mappings for the AltGr key combinations did not work and I had the gast-account where they worked, I compared the contents of these files to their counterparts.In doing so, I noticed that /home/a/.config/xfce4/xfconf/xfce-perchannel-xml/xfce4-keyboard-shortcuts.xml was the one which prevented user a to use AltGr key combinations. There was a linein it associating the sceenshooter to the AltGr key. Apparently ISO_Level3_Shift is the name for that key, this name also appeared in the output of xev (as a user with that key functioning). In the counterpiece of .config/xfce4/xfce4/xfconf/xfce-perchannel-xml/xfce4-keyboard-shortcuts.xml there is no reference to ISO_Level3_Shift.

There also were several other deviations between the two versions of this file. Therefore I copied this file from the user which worked to user a whoes AltGr key combinations did not work.However, this having done, the AltGr-Keys did not work immediately for user a. I had to use the xfce4-keyboard-settings to remove a setting for Tastenkrzel fr die Belegungsnderung (the left drop down selection box): both of these boxes have to indicate a minus sign which apparently means none.

The SErial Killer (Part 4) 1

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Is There a Program That Will Prevent Changing the Numlock State? Closed
Is There a Program That Will Prevent Changing the Numlock State? Closed
In the registry, oen HKEY_CURRENT_USERControl PanelKeyoard.The entry InitialKeyoardIndicators can have the following values:0 NumLock is turned OFF after the logon.1 Disale NumLock.2 Numlock is turned ON after the logon.EDITIf I understand your dilemma correctly, you like one NumLock setting and your oss likes another. So why don't you create another user account for your oss? You can also use a screen-saver with your assword, to force him to logon in order to use the comuter. I elieve that's a etter solution than monkeying with the registry.Regarding the registry key, there are actually two of those. Here's how it works:After oot and efore login, Windows readsHKEY_USERS.DEFAULTControl PanelKeyoardInitialKeyoardIndicatorsand sets it u as default. After Logon, Windows Alies the setting fromHKEY_CURRENT_USERControl PanelKeyoardInitialKeyoardIndicators (0Off, 2On).This setting is stored indeendently inside each user rofile, and the state from the Windows Session is saved at logoff. This means if you turn your NumLock on, a value of 2 is written at logoff, and NumLock will e toggled on at next login. Related QuestionsCan myetherwallet e hacked from the rowser extension?If you have given a rowser extension ermission to do so, it can access all data on all ages you use, including MyEtherWallet. You're lacing trust in the rowser extension.You can increase your security y only accessing MyEtherWallet on a rowser without extensions, for examle Chrome's incognito mode.The only way to e 100% certain of your security is to generate your rivate keys with dice rolls (or another hysical method that you know to e random). Only enter the rivate keys on a comuter without network connection and without wireless networking caailities (e.g. WiFi, Bluetooth, NFC, infrared). Also make sure no other eole or cameras are watching your screen, keyoard or dice. Also, make sure no microhones are listening to your tying atterns, ecause on most keyoards every key has a slightly different sound. (you can roaly hear it)If you're not doing all that, you're lacing trust in the manufacturer of your hardware, your oerating system, your rowser, rowser extensions, the software you use to generate rivate keys and other software running on your comuter.It's a matter of comromising etween security, trust and convenience.------Not debouncing on a MIDI keyboardI guess the 1us RC lowpass filtering tries to keep off false keyhits caused by phones and other radio transmitters. The debouncing is performed with software. Do not add slowness to the circuit which detects if a key is pressed. Players hate delays. There's enough it already (MIDI transmission,communication between the MIDI interface and the computer application, sound generating DSP, sound system DSP, distance to the loudspeaker). As much as 20ms total in circuits ( the distance to the loudspeaker) is well achievable by bad design and it makes a MIDI keyboard painful experience for a competent player.Make your system to react as soon as possible to a keypress. Leave debouncing delay for the key scanning software and let it affect only to the time when the releasing of the key is taken into the account. Playing a sound a little too long is much less annoying than a delayed start. A simple debouncing strategy in software is to scan the keys say in every 3 millisecond if the caused 0...3 ms extra delay is not a problem. The maximum value 3 ms is equivalent with about 1 meter extra distance to the speaker which can be acceptable------What photograph-manipulation application matches my specific feature wishlist?I'm curious why you think Photoshop doesn't meet what you want, when it clearly does match everyone of your requirements:Fast. How fast is fast? CS5 runs really well for me. This question reminds me of: http://www.youtube.com/watch?v8r1CZTLk-GkRAW: Adobe Camera Raw is updated constantly to support the latest raw formatsHDR: CS5's HDR capability is fantastic (ihmo)Macros: Photoshop supports VBSCript, Javascript, and AppleScript. Javascript has it's faults, but given how performant the stackexchange sites are, there is no denying in the right hands, it's incredibly powerful (LIKE A NINJA RIDING ON THE BACK OF A PIRATE)Image Processing: It's photoshop.Images Search tag, yada yada: Photoshop comes with Adobe Bridge with integrates seemlessly with what you want.Mac support: Yep. Runs on a mac.I suspect you are looking for something that is very specific to how you work, and it's very unlikely that you are going to find something. The good news is, if you're inclined, GIMP is open source, so you could add the features you want to the source, and commit them for addition to the mainline------Get bluetooth keyboard working identically to built-in keyboardTroubleshooting is a process of elimination and often requires patience.As a starting point, I'd try to reset both the macOS Bluetooth Device List and Bluetooth Controller. IMPORTANT: This will reset all connected Bluetooth devices, including any wireless keyboard or mouse, so they will need to be reconnected.Before commencing, you will need to have the Bluetooth icon showing in the menu bar. If it is not there, open System Preferences > Bluetooth and enable the option Show Bluetooth in Menu Bar.Resetting the macOS Bluetooth Device List and Bluetooth ControllerFollow these steps:After doing the above, test your keyboard for a while to determine if it's now working better.If it's not, there are other things we can try/test for on the MBP side of things. However, before doing that, the next step should be confirming the keyboard itself is okay. If possible, test the keyboard with another computer and confirm it's working okay with that. If it isn't, then replace your keyboard batteries of make sure they're fully charged and test again.Let me know how you go up to this point and if necessary we'll proceed further------Learning piano via MIDI keyboard questionsQuestion 1) I use an 88 key Roland stage piano with midi out when I need it. Stage because it saves space and fairly portable (still 25kg) and have sometimes packed it away in flight case when not being used. Still requires a dedicated space in any room.Question 2) I got fully weighted because its main purpose was to learn how to play classical piano, but as user15664 says in his post there are different purposes. Also see this previous post: How to gain velocity feelQuestion 3) A good brand piano will feel and sound good. You can listen to demo's yourself on-line but you will probably have to rely on reviews of the hammer action for the feel (since you are new to it)In your original statement, you said you wanted to toy with music production. Majority of cases for which it will be better to use good software pianos. The whole skillet is different and not as necessary to have fully weighted keys (i.e. arranging and tweaking velocities and notes as oppose to flawless playing in a recorded take)And finally, I would reccomend second hand as Digital Pianos depreciate in value like cars.------What features are cursor controlled on the A380 Navigation Display?As far as I know the whole FMC (or as it is called in an airbus: MCDU) is controlled by this cursors. So you don't have the limited options by just using scratchpad and line select keys, but you can graphically interact with the items on the screen by using the cursor.A flight management system (FMS) is a fundamental component of a modern airliner's avionics. An FMS is a specialized computer system that automates a wide variety of in-flight tasks, reducing the workload on the flight crew to the point that modern civilian aircraft no longer carry flight engineers or navigators. A primary function is in-flight management of the flight plan. Using various sensors (such as GPS and INS often backed up by radio navigation) to determine the aircraft's position, the FMS can guide the aircraft along the flight plan. From the cockpit, the FMS is normally controlled through a Control Display Unit (CDU) which incorporates a small screen and keyboard or touchscreen. The FMS sends the flight plan for display to the Electronic Flight Instrument System (EFIS), Navigation Display (ND), or Multifunction Display (MFD).Wikipedia - Flight Management System------How to test which button is stuckIn the first instance, maybe give the keyboard a damn good blow with a can of compressed air, in case there is debris under the keys. Biscuits are GREAT for screwing up keyboards.Failing that, I would give Dell technical support a call and explain your problem as it is still under warranty. It would save you some time if you ran through the diagnostics (F12 on boot up and then select the diagnostic option) before calling. It might save them getting you to do it while on the phone.(sorry if this does not apply to you-) Over here in the UK, if you tell them that you're comfortable changing the keyboard and ask nicely, they will just send the part and let you do it yourself. Not sure whether this will work in your neck of the woods but worth a go nevertheless, nothing to lose right?Trying to fix it yourself might end in a completely broken key. If you are lucky enough to remove the key without snapping the plastic, the scissor mechanism is a pain the backside to put back together again------How to change keyboard layout by USB dongle?There are several parts to this question.1) Can you make some kind of hardware that permutes keys from an USB keyboard as if it were a customized Dvorak keyboard?Yes, you can. You can use any embedded computer that has both an USB host and a USB client port. However, you will have to write the software for that yourself: It's very unlikely that ready-made software for that exists. The software will have to translate HID events from the physical keyboards to the HID events corresponding to the Dvorak layout, but that is not very difficult.2) Will you be allowed with your own private keyboard or your own piece of hardware that you can put between an existing USB keyboard and a PC in a high security place?If the people who are responsible for security are not completely stupid, they will allow no extra hardware at all - no keyboards you carry with you, no commercial "dongles", no custom self-made "dongles". And you'll get on the watch list for even asking.So if you are asking because you need a Dvorak layout in such a place, this is not a viable solution------How windows boots up in hibernate mode using keyboard?The Wikipedia article was imprecise, and I already fixed that. It's true that hibernation ends up with exactly the same device power state as when regular shutdown is applied. But while that state is called a "shut down", in modern computers some basic electronic modules still function. It's the motherboard that decides what to do, once it gets in that state - according to it's construction and features designed by manufacturer.These features are eg. powering up by WakeOnLAN, keyboard shortcut, mouse move or time-preset launch. Or even pressing the front power button, which is not a real circuit breaker like in "the old times", but just an electronic, low-power "sensor" that, when pressed, allows that inner electronic module to know you want to power the rest of modules on.To completely shut the computer (motherboard) down, you still have to completely unplug it's power sources or, in case of some desktop PC-s, use the power switch on the PSU.Mind though, that RAM is truly powered down when in hibernation state. It's content gets stored on the hard drive right before shutdown and then gets recovered when you start computer again.
How Do You Emulate a Numpad/keypad for Use with Design Software (such As Blender)?
How Do You Emulate a Numpad/keypad for Use with Design Software (such As Blender)?
If you don't care about any of the explanation (I know I can be longwinded), just follow the bolded numbers in curly brackets at the beginning of some paragraphs. Follow each of these steps in order, and you can probably have this implemented in a few minutes. Note that this guide assumes some amount of Unix competency (being able to create directories, create files, sudo elevating to root access, etc). Also note that root access is only required where indicated, so you do not need to use sudo unless told to. We will be using xkb to add a "locking" (like Caps lock) numpad emulation to Linux. I would like my keys "jkluio789" to represent the numpad representations of the numbers "123456789", as well as a few other inclusions ("m,"->"0", "-"->numpad"-*", "."->numpad"."). I will toggle this "numpad mode" by using the key combination of ShiftMod4key where Mod4 is the modifier code for my operating system key (also called "Command" or "Windows Key", and sometimes assigned to the modifier code of Super or Hyper), and key is any of the keys used in my emulated numpad (such as "j" or ""). Simple modifications to this setup should be relatively simple after reading the full solution.To do this, we will define a custom xkb "type" file, which tells xkb how to interpret the various modifier keys we will use to initialize our keypad emulation, as well as a custom xkb "symbols" file, which tells xkb how each key we press should behave normally (Group 1), how it should behave during the numpad emulation (Group 2), and how to switch back and for between the two (Level 3 action for both groups). Finally, we will make our solution permanent by integrating it into the current xkbmap using sed each time we start a new session (so that our solution does not get erased each time xkb is updated).1 The first thing we will do is define a directory for us to keep our various files in. Yours can look like pretty much anything, but mine looks like thisOnce we have our directory tree, lets define the actual files in our solution. The first thing we will do is define our "type" file. This file will tell xkb how to move between "levels" (like how Shift capitalizes a letter, moving from the first level of a lowercase letter to an uppercase level of the uppercase letter). These levels are a bit difficult to grasp, particularly for native English speakers, but international keyboards use them to great effect for alternative letters and symbols, as well as diacritical marks. We will be using it to define how we intend to indicate a change in our keys.In other words, we tell it that we expect "level 1" behavior when no modifier is pressed (usually, a standard lower case letter when in our "normal mode"), "level 2" behavior when we hold the Shift key (usually, a standard upper case letter in our "normal mode"), and "level 3" behavior uwhen we hold both ShiftMod4 (a special case for our purposes, which we use to indicate that, when used to modify a key, the key will now switch between modes).2 Open a new file, which we will call togglekeypad. Copy the following codeblock into it, and save it into your types directory under home.xkbtypes. NOTE: You may need to change all instances of Mod4 to whatever modifier your "Command"/"Windows Key" button corresponds to (you might need to experiment, see this webpage under Modifier Keys for guidance) or whatever other modifier you would like.3 We must also copy this file to the directory /usr/share/X11/xkb/types/. This will require root privileges, which unfortunately kind of defeats the purpose of xkb being a user-space application, but I can't seem to get setxkbmap to recognize the file without doing this. Suggestions welcome!The next thing we will do it tell xkb what each key should do when modified in each of the ways we described in the types file. We will say that we want to use two Groups in our symbols file.This means that each key has two different general behaviors that we will switch between in some way, those behaviors being the normal typing behavior, and the new numpad emulation behavior. For each key, we will say that 1) we want to use the TOGGLEKEYPAD type, 2) we will define the symbols (i.e. what the computer sees) associated with each of the physical keys in both Groups for all Levels, and 3) we will define any actions (any special things that xkb should do) associated with each key for both Groups across all Levels. This sounds rather confusing, but should make a bit more sense when look at an example. The first key that we see in the symbols file I pasted below is the key. This corresponds to the "J" key on most keyboards, according to the map seen here (Figure 2). For this physical key, we are saying that, in normal mode: in level 1 (no modifiers, according to our type file) it will just type "j", and in level 2 (Shift modifier) it will just type "J". In level 3, it does something special: there is no symbol associated with level 3, but there is an action, and that action is to LockGroup(group2). In other words, change us over to our second group, our "Keypad" group.If we look on the next few lines, we see that we have more symbols and actions defined for group 2 for this same key. It says that, in level 1 (no modifiers) type no symbol, but RedirectKey(keycode). In other words, register this key as if we actually just pressed the key, which corresponds to the "1" on a keypad. (Note: we could have again put NoAction() and used the symbol KP_1, which is the symbol that key corresponds to, but I thought this would give the best compatibility). For level 2, do the same thing, but add the Shift modifier to the key. Finally, for level 3, we lock ourselves back to Group 1, "Standard" mode.4 Open a new file, which we will call togglekeypad_symbols. Copy the following codeblock into it, and save it into your types directory under home.xkbsymbols.5 To test the keypad configuration as it is, open a Terminal window and typeThis will grab the current settings of our xkb map (using setxkbmap - print) while setting the types used to completetogglekeypad (everything in the file /usr/share/X11/xkb/types/complete and also including our types file at /usr/share/X11/xkb/types/togglekeypad). It will then feed this into sed, which will add our symbols togglekeypad from our file togglekeypad_symbols into the used symbols files. Finally, we used xkbcomp to compile the new keymap.Note that, on my machine, NumLock is presumed to be off (because there is no numpad on my machine), so the numpad keys will actually send their primary functions to the computer, i.e. Home, End, PG Up, PG Down, etc. To get numbers typed when using the emulated numpad, hold Shift. I have tried various methods to get this behavior flipped (swapping the modifers argument between levels in the symbols file, assigning a new key to emulate the NumLock key and toggling it), but nothing has yet worked for me. Thankfully, though, when tested in Blender, it performs exactly as expected without need for Shift being held down.6 If things have gone horribly wrong at this point, then don't worry, just logout/login (or at worst restart), debug, and try again. If everything is working, let's make it permanent. There are certainly some more elegant ways to make our solution persistent between sessions, but the easiest and most reliable method for me was to simply put the above commands at the end of my /.bashrc file.I used the solution roosed here which adds a it of error checking, and added a it more (so I could see any error oututs).7 Oen the file .ashrc. Add the following scrit to the end of it:8 Uon restarting, the numad emulation should now e made ermanent!While the exlanation is long, the method itself it relatively short. The shortfalls are that Blender requires a locking method to roerly work, whereas I would have referred a holding method instead, and also that it requires root access to get xk to recognize our custom tyes file for some reason. However, overall, this aears to e working well for me. If you have any questions or suggestions, lease feel free to leave them elow! Related Questions.
Pattern of Mouse (or Keybord) Clicks and Predicting Computer User's Activity
Pattern of Mouse (or Keybord) Clicks and Predicting Computer User's Activity
Great question that I wish I had the time to investigate myself. I am confident that it is tractale. Do you have any data?Your signal is a multidimensional ($n$D for $n$ uttons) inary times series; each it indicating whether or not the utton is deressed. You could also incororate the osition of the cursor into the feature vector as a 2D trajectory. Presumaly, you have training data for each activity. So this means you have a classification rolem.You can reduce the dimensionality y aroximating and efficiently encoding the trajectory (references on request), and taking the first-difference of the mouse click frequency (i.e., if the frequency of clicks is not changing, store zero). I would also estimate the distriution of the inter-arrival time of the clicks to see if you can classify from it.For a juming oint into the literature see Activity recognition using eye-gaze movements and traditional interactions. You should find more leads in the "uiquitouservasive comuting", and "humancomuter interaction" communities.To otain data I suggest generating it yourself using a keylogger. I suggest asking for hel on a forum related to comuter security or hacking. Most of them log the keyoard ut there might e something for the mouse too. Failing that, you could write your own software Related QuestionsWhat could have caused the * key on my numeric keyad to sto working in Windows 7?This was caused y software interceting the inut on those keys.As descried in my edit to the question, it took a while efore I noticed the rolem haen again. I ruled out that it was a dirt under the key to (there was none, and ressing the sensor also had no effect, and I found that the keyad key was also doing nothing). Then I noticed something else that identified the rolem:Not long ago, I had installed Nuance Dragon Naturally Seaking (Premium) 13. This is dictation software, ut it has a "feature" I hadn't learned aout yet, which is while the rogram is loaded, it intercets certain keys' inut, including the numeric keyad and * keys. I was ale to clear that out y going to that software's Tools-Otions-"Hot keys" menu and editing out those keys.This is very similar to the rolem and solution in this question, ut with a different iece of software doing the intercetion. So as a general answer to this tye of rolem, I would suggest that if some keys sto resonding sometimes, one might try shutting down various running rograms (esecially recently-installed ones) and then testing the keys, to see if any of them is causing it, and then looking for otions in that software to hoefully see what keys it intercets and adjust them to taste (or at least know what they are)------Caribou On Screen Keyboard Shift Key Not WorkingHere is a solution that will only work on Xorg, not Wayland.We will modify the binary file, /usr/lib/gnome-shell/libgnome-shell.so.Make a backup of the original file.View the portion of the file that we will modify.The output will look like this, showing that Caribou uses Gnome Shell's new LocalAdapter to handle virtual key presses.Comment out the part of the code that tells Caribou to use Gnome Shell's LocalAdapter. Caribou will then default to its own XAdapter, which works only in X11. Verify that /usr/lib/gnome-shell/libgnome-shell.so was modified correctly.The output will look like this, showing that the line has now been commented out.Disable Wayland and use X11 on the GDM (login) screen.Make sure WaylandEnable has been uncommented and that it is set to false in the GDM configuration.The output should look exactly like this.Finally, reboot to make the changes effective.Since the solution above is only a workaround, register on Launchpad and Bugzilla, and mark yourself as impacted, so this bug gets fixed...Undo / Revert ChangesIf your outputs from steps 4 and 5 match what is shown above, then the changes were made successfully. If you need to revert these changes, do the following:To un-do the changes in step 4...To un-do the changes in step 5------best mac keyboard for sound editingMy two cents is that you find a keyboard you can use for a long time. It can be detrimental to switch keyboards. Switching keyboards can slow production down a lot - I have seen it many times. I get mad when someone changes my mouse acceleration speed... Editing for 12 hours a day gets you comfortable with computer lag and keyboard sensitivity. It's important!!!I find that for me, the grooves of the older Mac keyboards that still had grooves in the keys for your fingers make my sound editing go way faster than the newer flatter keyboards. So much so that when I broke my old one, I bought a new standard issue one and took off all the keys and replaced them with the colorful pro tools keyboard shortcut keys and I've done this twice now since 2005. I find my sense memory of what key is where is dependent upon the grooves and the feel of the older keys and the new ones slow me down a lot!!!UPDATE: The keyboard I use and love is an oldschool (from around 2002-2003) Macally iKey with the Pro Tools colored keys. It works like a charm for me and can get around shortcuts pretty fast. It's fairly silent and I've recorded it many times for generic typing SFX as well!------Grub is preventing me from booting from usb to install DebianAs @jdwolf already commented...You may actually be booting from USB after all. If the system is booting in UEFI mode, there should be an UEFI bootloader at EFIbootbootx64.efi on the USB stick. On Linux installation media, this UEFI bootloader is often an UEFI version of GRUB.If unetbootin changed the layout of the boot files without also adjusting the configuration of the UEFI bootloader (which might be found at EFIbootbootx64.cfg or EFIbootgrub.cfg), then your boot attempt from the USB media might end up with an UEFI GRUB with no valid configuration.It is also possible that your UEFI implementation may be buggy. Some UEFI versions of GRUB were quite sensitive to UEFI implementation details - I think this has been improving lately, as the GRUB developers receive bug reports and other experience on various UEFI implementations.With modern distributions, unetbootin and similar tools could be unnecessary for preparing an installation USB media: many installation ISOs come now prepared with isohybrid (see here) or similar tools so that you can simply write the ISO to the USB media using dd or a similar tool and have it just work. This way both the legacy BIOS and UEFI bootloaders on the installation media should be using the configuration that the distribution maintainers have actually tested, rather than a configuration built by unetbootin using heuristics.------linux - two keyboards one computer different keys sentDo you really need two keyboards? If you always have your Num-Lock key either on or off, you can do what you want with just a single keyboard... This method may(?) work with two keyboards if you prefer. Using a single keyboard may be faster than having to move you hand(s) from one keyboard to the other. You can use xbindkeys which allows you to launch shell commands with your keyboard or mouse under the X Window System. The particular feature of xbindkeys which can be used here is that it responds to the state of the Num-Lock key. Lets assume that in your normal typing mode you have Num-Lock on... When you turn Num-Lock off, every key is seen differently by xbindkeys. So, you can assign macros to any individual key you like, eg. I use To do this, using a single keyboard, I need to press three keysFor two keyboards, it would only need that you press the Numlock / key. Aside from the Numeric-keypad keys, the other keys function normally whether Numlock is on or off. So if you don't typically use the keypad at all, then it may be enough to use xbindkeys and assign 16 shortcut keys for Numlock off, and another 16 for Numlock on. Otherwise you have all keys available as new shortcuts.. (for Ubuntu): sudo apt-get install xbindkeys xbindkeys-config------Why is my keyboard acting like the Ctrl key is pressed when I hit an F key?I have run into 2 extremely similar problems which roughly fit this description. After a year of living with them, I finally figured out how to fix them.(1) Press Ctrl-Shift a few times. This seems to fix it for me. When I hit ctrl-c, it no longer puts the cents symbol. Pressing ctrl alone and shift alone may not be sufficient to fix this.This problem, bafflingly, is always specific to the application/window. Quitting and restarting each app fixes it for that app. I have this problem both with the Advantage2 Kinesis and Advantage Kinesys. It seems to be specific to my work machine and never my home machine. Oddly, it happens even when I remote desktop in from home to work. It may be Windows 7 specific. I read about a Advantage1-Windows7 problem which is fixed by either a bios change (disable usb 3 or turn on usb debug mode), a usb-to-ps2 dongle (plug usb keyboard into ps2 port) or an Advantage2 but I think this is a different problem because my Advantage2 (LF) has the same problem.(2) Press Alt-Shift once. This is the default hotkey to switch keyboard input languages in Windows. See the control panel. Every once in a while, I accidentally hit alt-shift as I type a hotkey and trigger this. When I hit shift-3, it no longer puts "/". If you disable all the alternate keyboard layouts, this problem goes away------What are the hotkeys for mstsc.exe?This is the list of shortcuts in the Win7RC MSTSC help (these work whatever the setting of "apply windows key combinations)":AltPage Up: Move between programs from left to right.AltPage Down: Move between programs from right to left.AltInsert: Cycle through programs in the order that they were started in.AltHome: Display the Start menu.CtrlAltBreak: Switch between a window and full screen.CtrlAltEnd: Display the Windows Security dialog box.AltDelete: Display the system menu.CtrlAltMinus Sign (-) on the numeric keypad: Place a copy of the active window, within the client, on the Terminal server clipboard (provides the same functionality as pressing AltPrtScn on a local computer).CtrlAltPlus Sign () on the numeric keypad: Place a copy of the entire client window area on the Terminal server clipboard (provides the same functionality as pressing PrtScn on a local computer).CtrlAltRight Arrow: Tab out of the Remote Desktop controls to a control in the host program (for example, a button or a text box). Useful when the Remote Desktop controls are embedded in another (host) program.CtrlAltLeft Arrow: Tab out of the Remote Desktop controls to a control in the host program (for example, a button or a text box). Useful when the Remote Desktop controls are embedded in another (host) program
How Does Using PS/2 with a Keyboard Influence Gaming? Closed
How Does Using PS/2 with a Keyboard Influence Gaming? Closed
PS2 is an original way of connecting keyoards (and mice) to comuters, efore USB was created. Aart from the differences I will mention in this answer, a PS2 and USB connected keyoard will ehave almost entirely the same while gaming.PS2 uses a different rotocol in dealing with actual user inut. When the state of a PS2 device changes (e.g. a key is ressedeleased), the rotocol interruts the current task of the CPU and the system immediately starts dealing with the new state. USB on the other hand gets olled, which means the comuter kees asking multile times a second the inut device for its current state.So in the end, no, using PS2 has no enefits for gaming, excet for the N-key-rollover that could e useful in some secial cases. While connecting your keyoard using PS2 won't harm your game exeriences either, it is roaly the easiest to just stick to the rotocol everyone uses: USB.There are other reasons not mentioned in this answer for using PS2, ut these don't make any difference on gaming. For more information I suggest the sources of this answer:Wikiedia - htts:en.wikiedia.orgwikiPS2_ort Related QuestionsSend Ctrl-Alt-Del to nested RDP sessionI found a way to make this work. I frequently work with nested RDP sessions that go in several levels dee. That's just how I refer to work, esecially with lots of VMs.Kee in mind that my environment is rimarily Windows 7 and Server 2008 R2.Here's the scenario: I RDP from Comuter A to Comuter B and from Comuter B to Comuter C.If I want to send CtrlAltDel to Comuter A, I tye CtrlAltDel from Comuter AIf I want to send CtrlAltDel to Comuter B, I tye CtrlAltEnd from Comuter AIf I want to send CtrlAltDel to Comuter C, I oen the On-Screen Keyoard on Comuter B and use it to tye CtrlAltEnd, which sends CtrlAltDel to Comuter CIf I try to use the On-Screen Keyoard to send CtrlAltDel on ANY of those three machines, it refers me to the Start menu, which does not hel me at all.So, to send CtrlAltDel to a remote machine, simly use the OSK to send CtrlAltEnd from the session just efore the remote machine you are trying to send it to. Works every time.------Taking Quizbowl buzzers and connecting to a computerIs there anyway that I can somehow connect this to my computer so that every time I click the button, it sends the signal of the enter key on my keyboard? Preferentially something that uses usb to reconfigure the signal.Yes you can do both.Find a secondhand USB keyboard. This shouldn't cost you anything. Open it up and removed the keyboard controller PCB.Figure 1. (1) The PCB and contacts. (2) and (3) the matrix keyboard which you'll be dumping.I used the controller in the photo and the contacts were covered with some kind of coating which wouldn't take solder. It scraped off quite easily and I soldered the wires on.I developed this technique to make a foot-operated switchboard for controlling a slide show while playing the guitar. I stopped testing when I found the combinations I wanted.Table 1. The Lenovo keyboard matrix.You could wire several of these controllers to send the key signals '1', '2', '3', etc., to a program or even to WordPad set to a very large font. You would see the keypress sequence on the screen as '213' or similar but if someone holds down the button you might get '21111113'------How to swap the fn use of Function keys on a *generic* Keyboard in LinuxFn is not a normal keyboard key, such as the modifiers Ctrl, Shift and AltGr. For a standard modifier key, the microcontroller inside the keyboard sends a scancode for the modifier itself, which is then interpreted by the operating system and combined with other simultaneous key-presses. The Fn key is a form of meta-modifier key, in that it causes the operating system to see altered scancodes when other keys on the keyboard are pressed. This allows the keyboard to directly emulate a full-sized keyboard, so the operating system can use standard keymaps designed for a full-sized keyboard. However, because the operating system has no notion of the Fn key, the key can not normally be remapped in software, unlike all other standard keyboard keys.While it is most common for the Fn key processing to happen directly in the keyboard micro-controller, offering no knowledge to the main computer of whether the Fn key was pressed, at least one manufacturer, Lenovo, performs this mapping in BIOS running on the main CPU. This allows remapping the Fn key by modifying the BIOS interrupt handler.Source: http://en.wikipedia.org/wiki/Fn_key#Technical_detailsAnswer to the question: Remapping not possible via operating system but only via BIOS (in some cases)------Restoring Windows 7 without Disks - What should I Know?Turn on your PC or restart it if it's already on.Watch for a "entering setup" message in the first few seconds after turning on your computer. This message varies greatly from computer to computer and also includes the key or keys you need to press to enter BIOS.Here are some common ways you might see this BIOS access message:Quickly press the key or keys instructed by the previous message to get into BIOS.Note: You may need to press the BIOS access key several times to enter BIOS. Don't hold the key down or press it too many times or your system may error or lock up. If that happens, just restart and try again.When you enter BIOS you can navigate the BIOS menu using the keys of your keyboard, it will look something like this:http://0.tqn.com/d/pcsupport/1/0/H/2/-/-/biosmainmenu.jpgJust go to the Boot Menu and locate the option for changing the boot order. Put your DVD/Disk reader first, save and restart. It should boot from the disk and then you can just do this:http://harryjohnston.wordpress.com/2010/03/09/resetting-a-password-in-windows-7-or-windows-vista/I'll just copy-paste from there to in case the link breaks down:------How to use NXT device as a keyboard key for computerYes, this is possible.First, you'll want to connect your NXT to the computer using Bluetooth. Make sure you can connect to it with the official LEGO Software programming environment, NXT-G, and that the computer connection will show up when you go to Bluetooth > Connections.Next, you'll want to create a simple program in NXT-G and download it to your NXT. It should basically send a Bluetooth message to the computer, using Mailbox #1 and a number variable containing the value of the key pressed. If you need help with this part, I can provide detailed steps.Finally, you'll want to use a program called InstantEXE 3.0 (the free version works!) to receive the Bluetooth signal and use the command "Keys" to simulate the key or key sequence that you want to be triggered when the button is pressed. You can expand this with your sensors, e.g. when touch sensor #1 is pressed send it with a value and intercept this on the computer, using InstantEXE 3.0 to convert it into a keysequence. If you need help with this part, I can provide detailed steps and/or a sample program for you to use. You could use some basic labels like the following script::LeftKeys "L":CenterKeys "C":RightKeys "R"------Alert window, navigating to the right buttonYou can activate Cancel by pressing ESC. All of the Mac OS X dialogs, which has a properly associated Cancel action could be closed with ESC key (with some exceptions).So, you have ENTER for focused (default) action, ESCAPE for cancel and SPACE for alternative action (if any), which is enough in most of the cases. The only problem I see here is discoverability, but once you will discover that it will work in any app and dialog.So, actually, it's even more user-friendly (you'll have to press just one key to choose an option).Rationale I see behind this, is that it's better to think about the dialog, figure out how user will use it and why he or she even needs it. I can imagine a 5 buttons dialog on Windows just because it's possible to navigate between options with keyboard, but think it's almost impossible to get such dialog in OS X, even if you got it it seems like it will be too complicated to choose an option quickly, so you probably have to use mouse.Concerning an ability to use keyboard, I think, it's a plus, especially, for situations caused by other keyboard actions: you will be able to not change the input device, which could be annoying------A good use case for Postgres JSONB?This is indeed a reasonable case for storing object-like or key/value data, and representing it as JSON in jsonb fields in PostgreSQL is a reasonable way to do that.In general it's time to consider hstore, xml, jsonb, etc when you're starting to look at alternatives like EAV or wide tables where the app adds columns dynamically. jsonb is basically the new hstore with a more standard way of representing its data and with nesting capabilities, so it's preferable most of the time.Static tables for different kinds of thing, with parent tables for more general categories of thing, still make sense if the things being tracked are (a) fairly static and not user-defined, and (b) not excessively numerous. That does not sound like the case here.I still recommend keeping attributes as regular columns where:You can define a unique constraint - or rather, unique index - over an expression that queries the json field. It's just often cleaner to have them separate. Similarly expression indexes can help with oft-queried fields you want to keep part of the json object. It's really the first point that's the most important, as RI constraints cannot reference the value of a json object key------How many different modifier keys can we have on a keyboard?I'm not sure if I completely understand your question but, without n-key rollover using PS/2 you can only have 4 modifier keys per keyboard.Excerpt from this article.PS/2 vs USB Technical LimitationsKeep the following in mind if you have an n-key rollover keyboard that can be hooked up to your computer through either USB or a PS/2 port:USB protocol limitation - A max of 10 simultaneous key presses are recognized, 6 non-modifier keys ('w', 'a', 's', 'd', etc) 4 modifier keys (Shift, Caps, Ctrl, etc). Although you are limited to 6 regular keys you are still guaranteed that any combination of keys will be recognized properly if you have an n-key rollover keyboard. I would guess that most people would not need support for more keys than this. I would also guess that the 6 key limit may have had something to do with braille input requirements rather than someone choosing an arbitrary limit (although that doesn't explain why the limit exists in the first place). PS/2 - There are no limitations when using a PS/2 connection with your keyboard. You will truly get full n-key rollover support.So using 2 standard keyboards without without PS/2, I think that you could have a maximum of 8 modifier keys.
Login to Windows XP Without a Keyboard Connected
Login to Windows XP Without a Keyboard Connected
Not a suer user, ut may I add, aout the "keyoard rolem" for such a situation, that the slow resonse to key-ins could mean a CPU that is overwhelmed with tasks, ossily slowed greatly y a adly fragmented HDD.Once you use a USB keyoard to gain access, suggest you defragment (everything: files, free sace, the age file, etc.), using a (free) utility like "ccleaner" if need e. Then exlore (task manager) to see if you've got dozens of unnecessary tasks running (automatically) and trim them down.These measures may e esecially imortant if you are using media center to record large files (such as videos) on a large HDD that has ecome adly fragmented over time. Just a thought Related QuestionsDoes the cv2.waitKey argument determine the frame-rate while caturing a video?waitKey actually determines how much time your rogram "waits" for a key eing ressed y the user efore going on with the rest of the rogram.It is usually indeed used to "simulate" a given frame rate etween two successive frames to e dislayed. However, if your image rocessing ste takes 1 second to e executed, your video will e dislayed in slow motion anyway.You can also use it with the argument 0 (or no argument at all as it is the default) if you want your rogram to dislay the same frame until you ress any key. That last use case is sometimes useful when you want to carefully oserve a series of following frames without saving them on your hard drive------AltU started producing signSince you stated that you use Polish Programmer keyboard layout, it is by default that AltGrU produces the euro sign. Source: & for why it changed, you might have pressed Left Alt Shift or other combination that changed your input language accidentally and reset it to the default input for AltGrU instead of your custom shortcut. Or as others stated it might have been a system update. I guess you should just choose a shortcut that does not conflict with those already assigned by the system, just to be safe that it won't be reset. A tool like ActiveHotkey( would help view those already assigned------How does the ZX80 keyboard avoid ghosting and masking?That circuit uses some address lines to enable keyboard reading. Some other address lines (not part of the enable circuit) determine which columns (note the s) are read: a low address line can, via a keyboard switch, pull one of the inputs of IC10 low. This depends on the property of LS TTL inputs that a floating input is seen as high.The diodes in the circuit are needed to prevent that pressed keys could connect an address line to another address line, which would not be a good idea. They are not there to prevent ghosting/masking. The ZX80 had a membrane keyboard, it was hard enough to press one key, multi key press detection as not a feature of this beast.------Securely making an SSH connection from a public computerWhy don't you make your debian computer to require only public and private keys instead of requiring for a password? You can change that setting on the sshd_config file. But before you do that you just have to generate the keys and install them on your server with ssh-copy-keys. After going through this process nobody would be able to even try to guess an user and password because the only way to access it is by having the key and if you want it even more secure you need to provide a passphrase when creating the keys.I do this also when I'm lazy and I don't want to type my password every time that I want to log into my server.------Emit region-neutral keyboard signalsNo. There is no such facility.If you take a German keyboard and plug it into a US configured computer the key layout will be wrong. You have to tell the computer that you're using a German keyboard.Keyboards don't know what is printed on the keycaps. All they understand is where the buttons are physically located.The same with the Arduino. It's sending the keypresses that correspond to the keyboard layout of a US keyboard, and you have to tell the computer that you're using a US keyboard - because that is effectively what you are using.If you want to change the keyboard map the Arduino uses you will have to manually modify the Keyboard library (file Keyboard.cpp, array _asciimap128).------Asus ROG Zephyrus Keyboard Backlight not working duplicateI can confirm the Zephyrus keyword isn't working for 17.04I had the same problem, and I was able to solve it, but I'm using Gentoo with 4.12-8 vanilla sources.My solution was adding blacklisting asus-nb-wmi, for that, you need the following text inside /etc/modprobe.d/blacklist.conf fileI hope it works! The problem seems to be related because asus-nb-wmi adds one fake (or wrong detected) keyboard device, and hid_asus also adds other device, so desktops seems to be using the first one which is wrong. blacklisting will avoid the bad one and keep the other correctly.This solution will add suspend, airplane mode, keyboard lights, screen lights, screen keys and volume. That doesn't fix the numeric keyboard.Regards.------Something denser than lead but with lead like properties?Here's a link to a listing of the elements in the periodic table sorted by density. The density of lead is 11.35 g/cm^3. If you wanted higher density, no toxicity and to really let your pinky live in style, then gold with a density of 19.32 would be a possibility. Other relatively available elements that are denser than lead and without toxicity concerns include palladium (12.02), rhodium (12.41), tungsten (19.35) and platinum (21.45). If you're willing to be a bit less dense than lead, then you can reduce price by using copper (8.96), molybdenum (10.22) or silver (10.5). Alloys of some of these elements are also available at high density, but the cost (due to fabrication costs) is likely to be as high or higher than that the element itself------Does somebody knows why the Apple-key has been renamed Command key?The symbol, called a Gorgon loop, has been in use since the first Mac keyboard. The key, called the Apple Key, or Open Apple Key, is referred to most commonly as the 'Command Key' - similar to the Windows Key on pretty much all other keyboards. It is used to issue keyboard commands, hence its name.They never changed the name, although some keyboards did have an actual Apple logo on the key. 'Cmd' is semantically easier than just a symbol, especially when trying to explain to a Windows-convert. Lastly, with the switch to Intel processors, its possible to run other OSes on Mac hardware. There is no 'Apple' key in Windows in Linux, but the key still has functionality------Windows 8.1 - Group Policy Settings set, but not executet when offlineAfter some more testing, finaly the settings are still beeing applied offline.The problem seems to be to "DOmain Guest" Group. I wanted to prevent this user to login to other machines on our campus, because in order to achieve auto logon, i had to put the plaintext password in the registry. This is why i removed the user from the "Domain Users" group and added him to the "Domain Guest" group. Then i added the user himself to the "Power Users" Group and for testing also the "Users" group on the local machine. Both didn't work, only after i added the user to "Domain Users" group the policys were applied after a reboot and without connection to the DC. Strange.------Ubuntu 18.04, Ctrl-C not work in RealVNC and Remmina but working fine in local(for future reference)In Remmina, to avoid problem of Host keys (in this case the Ctrl keys) not being registered by the remote client, please make sure to disableenable the toolbar icon "Grab all keyboard events" whenever needed. The toolbar icon should be located at either the top or sides of your remote screen connection. The should be a keyboard icon.Enabling said option in Remmina will cause all Host key events (Ctrl) to be sent to the remote client, hence you should be able to copy-paste on remote client.Disabling said option in Remmina will cause all Host key events to be captured on your local machine, and by using the HostCtrl keyypi you would be activating its local functionality.------Why don't we have continuous keys on the keyboard?The arrangement of the QWERTY keyboard has an interesting history. In days of old type setting for a printing press was easily jammed by type setters that were too fast, the keyboard layout was changed to make it more difficult to type fast. So it is intentionally designed to slow your typing. A newer design known as the Dvorak keyboard layout - Wikipedia named after the creator is not linear either, but it is optimized for fast typing. A few people use it and swear it is much better, but it never really caught on enough to become the standard. You can still purchase a Dvorak keyboard. Why don't we have continuous keys on the keyboard?Why are computer keyboard keys not linear?------Cheapest, simplest way to implement a Bluetooth keyboard/mouse?You'll find this is often the case, when you try to build something from off the shelf parts that duplicates an existing product, almost always the parts alone will cost more than the existing product. The reason being that they can mass produce their product, buying parts in bulk cuts down on costs etc.Look closely at the 'serial-over-Bluetooth boards', some of them do in fact support different profiles. What you are looking for is a module that supports the Bluetooth HID profile (Human Interface Device, aka mouse, keyboard, joystick, wii remote, etc).Check out this previous question, it lists several bluetooth modules, which you can buy in single quantities for fairly reasonable prices, some or all of them should support HID------Access bios from Windows 10 Legacy modeReboot to firmware setup is simply not possible with BIOS (legacy) boot. Even on UEFI systems, it is not guaranteed to be available. See this topic on Unix SE for more details on the OsIndications EFI variable.If you cannot seem to enter the BIOS setup, the easiest method is to disconnect the storage device that holds the operating system. This way, you wont accidentally boot and some timeouts may be more relaxed.If you have a gaming keyboard with N-key rollover or anything the like, it may not work while booting. Use a regular USB keyboard instead.If you want a more specific guide, youll need to find out the make and model of the motherboard, for example using CPU-Z------TTY doesn't wait for passwordThis is unbelievable - today I went to this bug on Ubuntu 16.04.5 LTS (Xenial Xerus) with all updates and without PPAs on physical hardware.So the problem was with 4.4.0-142-generic kernel. The symptoms was exactly same as in question. Getty in text console sends "Enter" and does not allow me to enter my password. Shows Login incorrect instead.So I removed this buggy kernel and installed 138 instead (with method similar to USB-problem):and rebooted afterwards. I/we need to wait for normal stable kernel.Warning: do not upgrade kernel to 4.4.0-142-generic if you need console login. Subscribe to the bug 1813873 and after the confirmation of the fix - install newest kernel back with sudo apt-get install linux-image-generic linux-headers-generic.------Apple Magic Keyboard 2 native function keys don't workIt turns out that my problem was rare because the circumstances of it were rare too. I solved my problem successfully by upgrading from El Capitan Beta to the Stable release 10.11.4. I did this by downloading the installer from the App Store application (can be found in the Purchases tab), and running it on my PC. After selecting the drive on which the current OS X was installed, I waited around 30 minutes for the installation to complete. It was completed and I didn't lose any of my data.Once I logged back in, I clicked on the Bluetooth icon while holding alt and shift, clicked on Debug and Remove all devices. After that, I reconnected my keyboard and it worked fine
My Friend Sent Me a Photo of His Keyboard, but There's Something I Can't Figure Out About It
My Friend Sent Me a Photo of His Keyboard, but There's Something I Can't Figure Out About It
Your friend does all his writing using: vim.He is constantly rewording sentences and editing his writing. As such, he often uses the command dd to delete a line and dw to delete a word.He is also quite new to editing with this software. He doesn't know he can comine commands with a numer such as 37dd to delete 37 lines or use . to reeat a command, so sometimes you see him entering commands reeatedly, EG: ddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddYou should really send him a command cheatsheet, so he can sto ausing his keyoard and, more imortantly, his flexor tendons. Related QuestionsCannot change rightness on lock screenI make my own rightness hotkeys using xacklight.After xacklight is installed:There is a little lus sign on the ottom right that says "add" when you hover over it.Make two custom commandsSet the keys for these to(ctrl (rightness u key))(ctrl (rightness down key))On my lato I use (ctrl f5) and (ctrl f6) for my rightness keys.What this is done it is ossile that you can set your rightness to zero and get no video outut. When that haens you will have to ress the keys to increase your rightness to get your video ack------How do I define and fix this issue?This is what happens when a key gets stuck either during a games initial load phase or during a map/level load. This happens because DirectInput is telling the game files this keyboard needs to be calibrated. So, the keyboard calibrates with these keys stuck in and thinks having "S" push down is idle for the computer itself.This is more a Microsoft annoyance than it is a glitch or a bug in DirectX. When you do run into these issues simple exit the game, make certain no keys are pressed, and continue your virtual fun and adventure------Strange things happening when I enter my password on the lockscreen at Windows 8.1Your keyboard is having issues, probably. It sounds as though your computer thinks the Windows key is being pressed. I've seen this happen with cheaper keyboards with the CTRL key seeming to be pressed.With your nicer keyboard, I'm not certain of the cause.But WinP is the projector/second screen shortcut, and WinEnter is the Narrator shortcut.When this happens to me (with the CTRL key), I just hit the CTRL key a few times and it fixes itself. You can try pressing the Win key a few times to see if the issues goes away.------Space as modifier key XKBI think you're going to have immense difficulty getting the 'tap to space; hold to shift' behavior.That said, you can use xkbcomp :0.0 to dump the current keymap from the server to a file server-0_0.xkb, and I think I see an easy way to get the space bar to function as as modifier:Try replacing space with Mod5 (or whichever modifier key makes most sense), and then add a new modifier_map line:This is untested, but it feels right.I don't know how you'll get a plain old space though. I'd suggest mapping it to another key entirely------Any cool programs that take advantage of Scroll Lock?Excel uses it (and I think Excel is cool)If you hit scroll lock then move around the sheet using the usual page up / down or arrow keys then you see different parts of the sheet, but the active cell remains unchanged.This is great when troubleshooting or checking formulas and results, as an easy way to move around your data while still staying in one place, which is then easier to return to (eg press scroll lock again to turn it off, press right arrow , left arrow and Excel will bring the active cell back into the visible window).------Is there a word for (computer) keyboard keys that have a valley in them, like caps lock?From reading the term step seems promising, so perhaps stepped keycaps or keycaps with a step?I don't know how "official" the term is but that website has an amazing amount of information on keyboards and keycaps and seems as authoritative as I can find.And from same page ...It usually occupies a prominent place between Tab, Shift and A, and is easily engaged by mistake when reaching for A. To avoid this mistake, many keyboards have a stepped caps lock keycap that places a gap between caps lock and the adjacent letter key.------My keyboard is typing by itself, could there be a ghost in it?The "could there be a ghost in it" really got me laughing, What I can tell you is this, from my years of experience it's most likely a faulty keyboard which needs replacement.But in order to be really sure, put your PC in airplane mode(disconnect from the internet), this is to be sure that a hacker/script isn't controlling your PC.watch it for a couple of minutes and see if it continues to exhibit the same behavior if it doesn't, Kindly go to your nearest PC Engineer and get your keyboard fixed or replaced. Good luck.------PROGRAMMING KEYS Microsoft Ergonomic Keyboard 4000 / Mac Mini OS X 10.9.5Adobe apps have their own Keyboard Shortcuts setup, in the Edit menu.I don't have InDesign, only Photoshop, but this is what it looks like in thereIt's in Layer > Arrange you need to do a lot of scrolling to get thereAfter commentsIt may not be possible to assign a single-key shortcut in Adobe, it may always need to include Cmdhowever, you could perhaps do the equivalent inSystem Prefs > Keyboard > Keyboard > App Shortcutsby assigning each one to 'All Applications' - which will then work in any app that actually has that precisely-worded command------How can I type special symbols on my Android device like or as a regular character?These are actually Unicode characters you can easily reproduce on your computer:How can I get WHITE SMILING FACE (U263A) with the keyboard?The Android platform supports unicode and all its characters, however the soft keyboard that comes with your Android ROM probably won't carry all your desired symbols.When long clicking on some symbols/characters on your soft keyboard you will see the key pop-up expanding to give you an additional choice of symbols, then drag and release your finger to print them.Installing some 3rd party keyboards (such as GO-Keyboard) will give you access to more symbols.------Microsoft Keyboard Layout Creator, buggy mapping on right altThis may not exactly be what you're looking to accomplish but I believe the US - International keyboard layout already has the Swedish characters that you need. They're made available through AltGr (i.e. the right Alt key or CtrlAlt) shortcuts.Some CtrlAlt shortcuts may trigger other action on certain programs.For instance CtrlAltp would open the Print dialog in Notepad.You can check what characters are available to you using Microsoft Keyboard Layout Creator by loading your existing keyboard profile through File Load Existing Keyboard... and checking the AltCtrl (AltGr) shift state.------How can laptop keyboard keys be removed and replaced?You want to google for the service guide. I googled "HP dv2500 service guide" and the first hit is a PDF describing how to disassemble the laptop and replace parts. Once you've got the keyboard out you may find it easier to clean.If the keyboard is beyond repair, check if you can get replacements on ebay.I have performed a similar repair on a Dell laptop, and it's really quite easy when you've got the service guide. Individual keys could be popped off with a little force from underneath and reattached by pressing down hard until it clicks------Mac Power via Keyboard Shortcut?There are multiple ways to do that.You could use an Arduino Leonardo as a keyboard, then send a shortcut command to shut down or sleep the computer. You can edit these from System Preferences>Keyboard>Shorcuts>Services.The keycode 0x66 does not work for mac, but may for other operating systems sourceYou could write a small program (I'd do it in Python) which communicates with the Arduino over the serial port and shuts down the Mac if the Arduino wants it to.You could sacrifice an USB keyboard and use a relay to "press" the power key.------Can I install OS X lion on a disk that is OS X Extended Journaled encrypted?I am guessing here:The disk may have to be unlocked first. It will either prompt you to unlock it during the installation, or you may have to do it by accessing Disk Utility before the install process (Utility menu on the 1st or 2nd screen of the install).Another way of doing the same thing is not to have an encrypted disk, and install Lion. After the installation completes, encrypt the disk through System Preferences -> Security. It will prompt you to restart and then it will begin encrypting the whole disk, even as you use it. Great feature------Bluetooth not detected with rfkill list on dell xps from fresh install duplicateFrom: Turn Bluetooth on or offYou can turn Bluetooth on to connect to other Bluetooth devices, or turn it off to conserve power. To turn Bluetooth on:Open the Activities overview and start typing Bluetooth.Click on Bluetooth to open the panel.Set the switch at the top to ON.Many laptop computers have a hardware switch or key combination to turn Bluetooth on and off. Look for a switch on your computer or a key on your keyboard. The keyboard key is often accessed with the help of the Fn key.From this answer:You can try:------Pop-up appears when keeping a key pressed for more than a second while playing Diablo 3 on OS XThis question belongs on but what you're actually seeing here is that the text entry system that Diablo uses is "well-behaved". (FireFox's text entry system probably isn't, on account of being cross-platform, and Terminal isn't for similar reasons.)This question has the opposite problem, but should be illuminating. stackexchange.com/questions/35576Edit: After a review of the screen shots it appears it might not be as well-behaved as I thought, if it happens outside of areas dedicated for text entry.From the linked question; fix by opening Terminal.app and running the following command:------Keyboard Input over MS Remote DesktopAlright, so get this: Microsoft Office has its own language settings, distinct from Windows, and these language settings influence the languages which appear in the language bar.Somehow, the language bar was picking English (Canada) as the current language, and this somehow resulted in the strange keyboard inputs. (I live in Canada, and our English keyboards are identical to those found in the States, so I don't know why the keys would be so badly remapped, but I digress...)Run any Office application, bring up Options under the File page, and remove unwanted languages there. This, hopefully, addresses the problem------New keyboard for programming wanted has a number of videos and articles you may find helpful in making a decision.I would suggest a keyboard with Cherry Speed Silver switches in your case for their shorter travel, e.g.: amazon.com/Mechanical-Keyboard-Switches-Lighting-Stealth/dp/B07VXRXMHF/ amazon.com/CORSAIR-Mechanical-Keyboard-Backlit-Resistant/dp/B07QBD76TX------Offline RSA strong prime test similar to Phuctor?How about the other keys we found? Some of them have valid self-signatures. As in, a naive user querying SKS for an email address without regard to fingerprint will be shown one of these as the top search result. And, for all we know, they will display a valid fingerprint on some broken PGP-compatible system.If, as Mr. Bck would have us believe, we had found that 'cosmic rays' or 'disk corruption' are able to generate valid PGP key-self-signatures - we'd be collecting the gold at Stockholm for this find, rather than settling for this small change------Ubuntu 14.04 doesn't wake up after screen is locked and blankI had similar issues with Ubuntu 14.04 and 16.04 more recently.After struggling for a while, I found that disabling USB auto suspend, solved (worked around) the problem.This feature is a part of usbcore which is compiled in the kernel in Ubuntu.From the /etc/default/grub file and change the GRUB_CMDLINE_LINUX_DEFAULT line to add the usbcore.autosuspend-1 option:Note that quit splash were already present options. So keep other options you have too.After save the file, update grub:And reboot.Now check autosuspend value:And it should display -1.
Why Are Computer Keyboard Keys Printed in Uppercase? [duplicate]
Why Are Computer Keyboard Keys Printed in Uppercase? [duplicate]
Why are computer keyboard keys printed in Uppercase? [duplicate]I believe it's partly alexeypegov's answer of distinctiveness, but also historical reasons. The first typewriters, which also had the first QWERTY keyboard, only supported upper case letters------What combination of Keys on the Computer Keyboard make a musical note symbol?Turn on your number lock and still use your keypad. With number lock off they can act as navigation hot-keys as you saw. I use alt codes on a daily basis and am irritated when I accidentally turn it off. I am entering the alt code such as 0176 for and my browser thinks I am talking to it. According to your results you are using the number pad. It just needs to get turned on. You can usually set number lock on through your BIOS. This will turn it on automatically when Windows starts. Pressing delete or F1 lets you into your BIOS,------What's the best way to clean a computer keyboard?pop each key out, then use a paint brush to dust the base. use an all purpose cleaner to clean each key. do not open the whole keyboard as it will be difficult to put it back together if this is your first time to do it.------Who decided where the keys on a computer keyboard would be? and Why did they decide the way they did?They used to have them in alphabetical order but apparently, when people were doing typewriting work, they were doing it too quickly so they mixed the letters on the keyboard up to make it more complicated and difficult! It's been like this since. We call it the qwerty keyboard because those are the first letters on the keyboard! qwerty!------computer keyboard questions, which is best?I have a Logitech G15 Refresh Keyboard. I would and always highly recommend it. It retails at a very good price, I paid $130 NZD for it and had well been worth the money. I would reccommend and keyboard from the Logitech G series. Have a quick look at their website. (Post link below)------how to remove the dust from your computer keyboard safely with out chemicals?Two ways: 1) vacuum the dust out with one of those small brushes that come with vacuum cleaners, or 2) buy a can of compressed air cleaner at a computer store, blow out the keyboard, and THEN, vacuum the dust out with one of those small brushes that come with vacuum cleaners. Works every time------What is the best household way to clean my computer keyboard?hoover it with the machine off------What is a good way to clean my computer keyboard?Get a mini-vaccum cleaner from any computer peripheral shop and you can use it to clean computer and other similar equipment., including HiFi, speakers etc------can i use a computer keyboard and mouse on a PS3?So long as it has a USB connection (as you said), it should work. This goes for both keyboards and mice------How do you clean a computer keyboard?there is a keyboard cleaner which you can buy from many stores: Staples, Office Depot etc. They go by the generic names of Keyboard Antistatic cleaner. Do not cost that much and many people have them (under $15.00) for the most part.------Is it true that you can clean a computer keyboard in the dishwasher. If yes, how?I would not recommend putting it in a dishwasher unless you dis assemble it first and remove all electrical items the water would get trapped inside of it and will take a very long time to dry out------My computer keyboard isnt typing the correct symbols?The Alt-key shortcut is Alt3------change my computer keyboard system?Go to "Control Panel" -> "Regional and Language Options" -> Choose tab of "Languages" --> Click "Details" --> Click "Add" and select "English UK" language and keyboard layout as "US" and click "OK", in the drop down menu select the recently added setting and click "OK" to finish!------What's the best way to clean a desktop PC computer keyboard?dishwasher. really. not an old one though as they are made differently------what is the best saved way to clean your computer keyboard ?'Jay' is right on. I do mine in the sink with lots of soap and hot water. Make sure you rinse it well to get the soap and water out. Stand it on end somewhere overnight so that it will dry. I learned about this during a college course on computer maintenance and it works and wo not damage the keyboard
Logitech MX Keys Connects to Dock but Does Not Connect to Mac
Logitech MX Keys Connects to Dock but Does Not Connect to Mac
The Logitech MX Keys is a wireless keyoard that uses either Bluetooth LE (low energy) or the Logitech Unifying wireless receiver. The USB cale is for charging only. So, excluding the USB connection from your question, this comes down to the following ossiilities:You might have interference issues with your BT (AirPort card) on your Mac. To isolate, remove the dock and try airing. If that doesnt work, try airing with the USB receiver. But to get a solid diagnosis of your BT adater, try a different device to ensure it connects as it should As for your keyoard, try airing with another comuter. If the symtoms ersist, its the keyoard and it should e returned. If they dont, then youve definitely narrowed it down to your Mac Related QuestionsBedtime remote tied to wrist to muteshut down comuterAlthough not the remote you descried, it's ossile to turn off (almost) any c after a secified amount of time. This will ro you of your choice on when to turn it off, ut if you always turn it off after aout the same amount of time it's a retty viale technique.On windows:Press the windows-key R, and tye shutdown -s -t numerofseconds. So if you want it to turn off in 30 minutes, tye shutdown -s -t 1800. Then ress enter, and get to ed.On linux:It deends on your distrio, ut this usually works:sudo reoot -h -t 1800. Again, 1800 is the numer of seconds until shutdown.On OS-X:Multile stes are involved in getting OS-X to do this.But in all seriousness, after launching a consoleterminal you should e ale to use the linux-method.------Why is 'shift space' not popularly used?It's not used because of unintended consequences.If I'm typing something and want to write THE END, remembering to let go of Shift in the middle or after each word becomes a huge burden. Even understanding why the computer didn't type the letters I wanted is confusing. In the case of Chrome the space bar isn't being used for the " " character, but as a directional key (like the arrow keys). In that case using shift space makes some conceptual sense to reverse the direction. You may be able to make a decent argument for shift space being used for _ in programming IDE's, as there is likely less need to type in all caps. Even then, it would have to be an option that could be disabled as required by the language being used------Can I use a foot pedal to send mouse clicks and/or modifier keys ergonomically?RSI refers to Repetitive Stress Injury. You see the word 'repetitive' there? So, it has to come with anything that you repeatedly do. No matter wrist, ankle, elbow, knee! But then, if you think a bit more, the strength we have in our extremities is different from each other. Said that, by nature, legs are stronger than hands. Extending this further, toes are stronger than fingers, knee ...than elbow, and hip joint ...than shoulder. The same goes true in case of foreleg vs forearm, thighs vs biceps and so ankle vs wrist. I don't say that using ankles won't cause RSI), BUT as compared to wrists, your ankles are a bit stronger so they'll take longer time to get affected. But RSI -repetitive...so doing it again and again won't spare you at all!------Mac often perceives left-click on Magic Mouse as right-clickI randomly noticed that a three-finger-tap on the built-in trackpad would not pull up the dictionary entry for the selected word (like it used to).I navigated to:This was very strange, because this feature has always been enabled, and I never disabled it. I enabled this checkbox, and the "look-up" feature now worked.But, this immediately made my computer stop perceiving all right-clicks (i.e., right-clicks on my mouse were always perceived as left-clicks).So, I navigated to:After doing this, my computer has not perceived a left-click as a right-click again.I still have no clue what caused the issue, or why doing the above solved it, especially considering that, for good measure, I had already previously deleted the com.apple.AppleMultitouchTrackpad.plist and com.apple.driver.AppleBluetoothMultitouch.trackpad.plist preference files------Why don't gaming keyboards typically work with KVM switches?The USB keyboard protocol is limited to 6 keys pressed simultaneously 3 modifier keys. To bypass this limitation, some keyboards report to computer as a USB hub with multiple keyboards connected to it.If your KVM switch was just directly passing through its USB port to the active computer, it would work fine, but this approach has two disadvantages:To solve these problems, switches take over keyboard communication and pretend to be a permanently connected keyboard for each computer. Keystrokes are passed through to active computer or intercepted if they're recognized by the KVM as a special command.For this feature to work, the connected device must actually be a keyboard - KVM doesn't implement complete USB protocol including hub support. So if the keyboard reports as a hub, the KVM may not know what to do with it.------How can I configure the buttons on a Corsair gaming mouse?Unfortunately, Corsair doesn't seem to want to support linux at all. However, there are a couple of work arounds. Although it's important to note that I haven't tested these solutions myself. In addition, my M95 doesn't use the config that's on it when I'm on Linux, but it works on Windows.You could use VirtualBox and a Windows virtual machine to configure the mouse. Not ideal, but it works.Note: A second mouse is recommended.While that's downloading, install VirtualBox:sudo apt-get install virtualboxAdd your user to the "vboxusers" group (very important):sudo useradd -G vboxusers usernameLog out, and back in for this to take effect (also very important).Note: You will probably want to have a second mouse on hand.Alternatively, you could just boot into Windows and make your changes there------How does YubiKey protects it's secret key?If it is plugged into an infected computer, wouldn't the secret key be compromised?The yubikey stores the key on its internal storage media -- the exact mechanism varies depending on the type of key. When yubikey is plugged into a computer, it is recognized as a USB keyboard. Pressing the sole button on the yubikey will send a string of characters containing your one-time password, just as if they were typed via a USB keyboard. The manufacturer assures that the secret key used to generate one-time passwords can never be read off of the device, regardless of the software installed on the computer it's plugged into.Also, is it possible for a computer virus to "infect" a YubiKey?Everything is possible, but would be very hard considering the limited functionality of a yubikey------Multiple Screens, Multiple OSMultiple OS's from one console...A) virtualized. You can run sessions full screen, looks seamless. You thought he wasn't doing that, though, and you mentioned a Mac, so unless he was running a Mac it's probably not it (virtualizing it is possible, but can be a royal PITA and is against Apple's licensing)B) KVM-multiple systems were running "somewhere" and the KVM is either hooked up physically (so each of those systems were, for example, under the desk) or over the network as an ethernet KVM. Keyboard hotswitches could be used to switch among systems.C) remote control software. VNC, Remote desktop, etc. running as fullscreen sessions give the illusion of multiple systems on one desktop.Those are the ways I know of that one system can "run" multiple platforms/OS's at once------Connecting two computers possible RDC duplicateTo turn on Remote Desktop, press start and go to the Control Panel. Click on System and on the left will be link labelled Remote settings. Click that and a new windows will appear with the title System Properties. On the 'Remote' tab, there's a header 'Remote Desktop' with three radio buttons. If you are set-up on a domain, you can select 'Allow connections only from computers running Remote Desktop with Network Level Authentication', else click to 'Allow connections from computers running any version of Remote Desktop'. Follow this procedure for both computers.On one computer, open up a command-prompt and type ipconfig to find your IP (should be something like 192.168.x.y).On the other, press WinR and type mstsc. Enter the IP address of the other computer and log in------android special characters keyboardYou might want to take a look at Hacker's Keyboard:A full 5-row keyboard including arrow and Esc/Ctrl keys, intended for tablets.Are you missing the key layout you're used to from your computer? This keyboard has separate number keys, punctuation in the usual places, and arrow keys. It is based on the AOSP Gingerbread soft keyboard, so it supports multitouch for the modifier keys. It supports a bunch of keyboard layouts -- though I'm not sure about the "special characters" being inserted using alt sequences.If you're mainly interested in being able to insert special characters (and don't care whether they are bound to alt-sequences or selectable by other means), I'd suggest to search the playstore for "charmap". This will yield about 10 results, the topmost of them would match your needs.------Cursor jumps frequently to top leftIf it happens in both windows & linux on the same hardware, then try a "hardware test" (provided by the hardware manufacturer, usually run from windows).And/or there's some "usability" setting, configured to a slightly different threshold between the two OS, e.g., "disable touchpad while typing" (just guessing), perhaps enabled Windows & disabled in linux. Or maybe one of these settings are configured to a different sensitivity level. (All this assumes it's not a hardware problem, but rather how your hands may be triggering the mouse to jump to the corner of the screen)Also, fwiw, 16.04 is pretty old (released 04/2016); perhaps try 17.10 (released 10/2017) and see if that improves the situation. You can try a newer Ubuntu directly via a bootable USB, rather than re-installing. (Maybe try kubuntu, too, trying to tweak keyboard/mouse/touchpad settings.).------My MBP keeps freezingIt is unclear to me but did you replace the keyboard with the defective "w" or does the replacement keyboard have the "w" issue?The reason being, holding down a key, any key, will cause strange things to happen. An electronic issue with a Mac's (or really any computer's) keyboard can cause all sorts of strange problems.Can you disconnect the keyboard and attach an external one (and will that even work?)?A Bad battery can cause issues as well. try removing the battery (if possible) and running it on power without the battery in the Mac. That works on a number of older MacBooks/Powerbooks, hopefully it will work on yours.And once the battery is out reset the SMC as per this Apple KB article apple.com/kb/HT3964.------Lost keyboard shortcut for beginning-of-line/end-of-lineThanks to the commenter Lri for pointing to this question: Commandright/left stopped working! It made me browse through the system shortcuts again, and lo and behold - CmdLeft & CmdRight were indeed in plain sight as shortcuts for "Move Left a Space" and "Move Right a Space" - I didn't even look there before because I did not use Spaces at all in Snow Leo, and so I assumed these shortcuts were inactive. Now the upgrade to Lion and Mission Control activated them, but I still had only one space so they did nothing.So it was enough to actually redefine them to something else to regain the beginning/end-of-line functionality.Sorry everyone for misleading with the wrong information (turns out I did not actually browse through all possible shortcuts...)
Mapping Piano Keys to Computer Keyboard
Mapping Piano Keys to Computer Keyboard
From what I recall all the midi controllers and keyoard synthesizers I've used since 1996 have had the following setu:I don't have the slightest clue where it comes from, ut it has ecome almost uiquitous. It could e that they simly start from "A" and go on till the end of letters Related QuestionsChange Proerties accelerator in windows 8 context menuThe shortcut accelerator aears to e related to your Windows dislay language setting.I managed to fix this y:I still think it's a terrily silly idea to have the same keyoard shortcutaccelerator for roerties and oen (which are going to e resent in the menu of almost every file) in any language------Can't avoid starting macbook in safe modeUnless you get the keyboard repaired, it will think the shift key is being held down and you won't be able to avoid it. Any key remapping software only takes effect after it has finished booting; i.e. it will not do anything for you during the boot process when you need it.------MSI motherboard not booting to BIOSIf you have not tried it yet, you may want to reset the BIOS settings. This is usually done via a shunt on the systemboard, but I cannot tell you exactly how since I do not know the model number of your 'board. Your problem sounds like it might be the BIOS settings are corrupted.------Trying to install OS to new computer; Won't detect HDD duplicateI say install ubuntu on the drive, or run the live version and check if the drive is there, make sure the IDE are shorted to either cable select/masterI prefer mastercheck this link out http://www.pchell.com/hardware/masterslaveorcableselect.shtml for help with selecting between CScable select MMaster------Unable to access fresh installation of 14.04 with full disk encryptionI found a similar problem to yours. This might help. What I would do is figure out the difference between the Norwegian layout and the default layout. According posters from the link provided, he has to press the Y key to enter z into the password field. It seems the keyboard layout reverts to default during boot.------Is Keyboard Viewer supposed to work through VNC?No.Keyboard viewer cannot be used to simulate alt, even without VNC. It shows mapping of local keyboard. Keyboard mapping in VNC protocol is a mess.Differnt VNC client won't affect sharing in any way. VNC server might collide with OSX's built-in one, but not necessarily you can configure 3rd party server to use different port------Some keys are getting hard to depress on Logitech keyboardBest bet would probably be to call Logitech support for a quick answer - other folks may have had the same issue so they may be able to provide a fix or let you know that you need a new keyboard. Either way, I'd give them a call first - 1-646-454-3200.-Alex------Intermittent keyboard and mouse failure on boot upI have exactly the same laptop and searching on the web this is what I found to solve the problem:1) Run the following command in terminal2) Locate the following section in the file:Replace it with: 3) Save the file and exit nano.4) Run the following command in terminal:5) Restart your computer.Now everything should work fine------Create keyboard shortcuts for certain symbols (like logical operators)The closest I have come to this so far is to use (on lubuntu 14.04.1) U then type the code say 00ac for which I found by using the character map.This is pretty quick way of doing it, if you know the code and remember each one. If I find another way I will update.------Why do we have 2 home keys on keyboard? closedIt's an historic reason, as you can see in this Wikipedia article:Most earlier computer keyboards had separate number keys and cursor control keys.However to reduce cost, IBM chose to combine the two in their early PC (84-key IBM PC keyboards) Num Lock would be used to choose between the two functions------Citrix ICA Client on Mac shift key doesn't work as expectedI am having the same problem. My receiver does not have the options shown on the Citrix site, so I have not found a resolution. In the meantime, my solution is to turn on "Sticky Keys" by typing 'Return' five times. That way, if I need to capitalize something, I type 'Return', then the key.------International English keyboard in Windows 8.1Go to:Your notification area will now have an 'Input Indicator', similar to before, that lets you quickly switch between languages/keyboard layouts.EDIT: I misread your question, however, following steps 1 to 4 and selecting the language you want as the default, then removing 'English (United States)' from the 'Languages' section should solve your issue------How do I enable the on-screen keyboard in the Linux Mint lock screen?AltGr (right alt key) is the default key used to enable 3rd tier characters in Linux Mint apparently.Keyboard mappings are not active until after the initial boot lock screen.Using that and the link above I changed my password back to the original so it matched the encryption password and logged in normally.------TTY doesn't wait for passwordAnother option is to use another kernel in grub boot menu (if one is available), after booting:Choose "Advanced options for Ubuntu"In my case 4.15.0.-43 was working correctlyJust try, what is available in the list (but maybe rather not the topmost entry, thats the one, that doesnt work, and not recovery mode)------Ergonomic PC keyboard/mouse/stand solution for multi-OS MacBookPro with Home/End/PageUp/PageDn/Insert/Delete keys closedHow about a Rain Stand?http://www.raindesigninc.com/mstand.htmlYou should be able to get it close to you, you can choose a full size keyboard of your choice. I'm a fan of the Kinesis: http://www.kinesis-ergo.com/shop/advantage-lf-for-pc-mac/But even the official Apple full size keyboard is pretty nice------Minecraft closes whenever I alt tab from full screenThere are several ways to do this, but I have a Windows 8 computer and this is how I get out:There are a bunch of other ways to do this, but I find there the quickest and most useful. If you DON'T have the same keyboard as I do, then... you're out of luck------I use an Azerty keyboard. How can I handle keybindings easily?"Alt Shift" keyboard shortcut is your friend.It does "set your entire computer to qwerty". But it's easy and quick enough to swap between "azerty" and "qwerty" that it shouldn't bother you much.But if you have to write ingame ... Then I know no other option than rebinding, and if you can't, you're stuck------Keyboard Media/Volume keys not working, only on this computer, and only this keyboardAccording to the first two tests, both of your keyboard and computer are ok. According to your test 4, driver should also be fine.I guess that there are some software has conflict with your keyboards Media/Volume/sleep keys, execute a clean boot to check again or use your keyboard in safe mode.------Installing Windows 8 without the keyThere should be generic install keys on the iso that will let you install BUT NOT activate. I know windows 7 had such a generic key, can't imagine why windows 8 wouldn't have the same. Again, it should let you install, but it won't activate, They should be available in the product.ini on the disc.------Which programming language for text editing? closedPerl and Ruby would be good choices. However, what you really want might be AWK, which is rather old, but it will do what you want. There are a few good books on AWK, but all of them are more than 10 years old. However, don't let that phase you; it's still a powerful tool.------Logitech wireless keyboard won't type anything"I found a solution that worked for me. Go to control panel - ease of access - make keyboard easer to use, then turn off "turn on filter keys"I had the exact opposite be my solution. After uninstalling/reinstalling the software and turning off filter keys, it ended up working for me------Killed all keyboard entry whilst fiddling with xkbBoot from the installation media. Once in a live session, open a terminal and mount your root file system on /mnt, then copy over the file from the live session to the mounted root filesystem:Unmount /mnt and reboot. Everything should work. For added peace of mind, you may want to reinstall xkb-data------MacBook Pro QWERTY replacementIn 10.7 Apple provides keyboard layouts for Colemak and 4 versions of Dvorak for your typing pleasure. You can activate them in system preferences/language & text/input sources.Best to go to system preferences/users and groups/login options and make sure the box is checked for "Show Input Menu on Login Page" if you activate additional layouts.------I lost my equals key. now what?Normally, the keys just pop out with a gentle lift. Find a key that you rarely use, pop it out and click it in place of your equals key. If you want, you can tape a piece of paper over the printed symbol saying "". Use your pencil for typing the rare character once a month------How can I swap Left Meta for an arbitrary key (preferably using xkb)?I didn't want to use xmodmap, but... it does the trick:xmodmap to swap their functions:Note that this responds to my keyboard layout, you should check for yours. Also, now the backslash is made with Shift instead of Alt-Gr like before, but didn't make me too long to get used to that------Lost keyboard shortcut for beginning-of-line/end-of-lineI remember having the same problem in some apps after upgrading to Lion. A reboot fixed it for me.Workaround: use CtrlA (instead of ) to move the cursor to the beginning of the line and CtrlE to move the cursor to the end of the line (instead of ). This works in all Cocoa-based applications.------Why are there two Enter keys and two ALT keys etc on a general windows PC's keyboard?All keys that need to be used in combination are duplicated on the keyboard. So that you can use both your hands easily for all the keys on the keyboard. For example, Alt A, will be used by pressing Alt with your right hand, and A with your left hand. Same logic for Alt L.------How can I fix the purple screen of death when trying Ubuntu (14-04, 32-bits) from the liveCD? duplicateTry using the 64-bit version of Ubuntu. Your computer may have UEFI. What year did you buy your PC?The weird icon should be a person standing in a circle at a low resolution screenWhat OS do you have on your PC that is bootable? Windows 7, Windows 8? If Windows 8, is Secure Boot on or off?------What is this notation? f(x)xthe greatest integer less than or equal to x.I would say that the typical notation for the function you describe (also known as the floor function) is $lfloor xrfloor$, but $x$ is not uncommon either.However, I would recommend $lfloor xrfloor$, because $x$ is sometimes (not that common) used as the "fractional" part of $x$, i.e. $x x-lfloor xrfloor$------Using Microsoft Surface Keyboard on Mac SierraNot entirely correct about function key row: with the keyboard's function key lock engaged, the F1, F2, etc functions do work. However, unlocked none of the functions (volume, play, etc) work nor can they be mapped with Karabiner-Element.This is pretty much par for the course for any Microsoft keyboard used on an Apple.------How to find the same comfort of Mac keyboard and save myself from pinkie finger stress disease?Which distribution of Linux are you using ? Or which OS ?I know ubuntu can handle a lot of keyboard language preferences. You may try to use an Apple keyboard and set your preferences to qwerty English Mac OS X.Switching your ctrl to cmd button might be an alternative but I found it dirty.------Why the human mind can say stories that never happened? closedThe mind making up stories that never happened just means that it is able to generate them using whatever tools (concepts, maybe) it has available.If "many worlds" refers to the theory that there are (physical) worlds for every possible future, there is no immediate connection to above question.(sorry, new account, can't comment)------Does somebody knows why the Apple-key has been renamed Command key?My understanding is that Steve Jobs thought the overuse of the Apple logo diluted the company's brand too much, so he demanded it be changed to something less Apple-y. I don't know if this is entirely factual or if it is urban legend.http://www.folklore.org/StoryView.py?projectMacintosh&storySwedish_Campground.txt.------I need to re-enable a key I disabled but forgot how I disabled itOkay, so I solved it with SharpKeys. I don't know if that's what I used initially and I uninstalled it for space or something, but that's what solved my issue pretty easily.A little bit of an innteresting journey for me, though but mainly just because I'm some sort of weird masochist who likes logging notes------How to remap HID keyboard keys?It looks like this Keyboard Layout tool by Microsoft lets you remap a key on an existing layout.Apparently it is a GUI that lets you edit the registry settings for your keyboard mapping.You can also trying hacking the registry keys under:HKEY_LOCAL_MACHINESYSTEMControlSet001ControlKeyboard LayoutGood luck. (fade out: whaaa-whaaaarmmm)
Can I Install OS X Lion on a Disk That Is OS X Extended Journaled Encrypted?
Can I Install OS X Lion on a Disk That Is OS X Extended Journaled Encrypted?
I am guessing here:The disk may have to e unlocked first. It will either romt you to unlock it during the installation, or you may have to do it y accessing Disk Utility efore the install rocess (Utility menu on the 1st or 2nd screen of the install).Another way of doing the same thing is not to have an encryted disk, and install Lion. After the installation comletes, encryt the disk through System Preferences - Security. It will romt you to restart and then it will egin encryting the whole disk, even as you use it. Great feature Related QuestionsUuntu 14.04 doesn't wake u after screen is locked and lankI had similar issues with Uuntu 14.04 and 16.04 more recently.After struggling for a while, I found that disaling USB auto susend, solved (worked around) the rolem.This feature is a art of uscore which is comiled in the kernel in Uuntu.From the etcdefaultgru file and change the GRUB_CMDLINE_LINUX_DEFAULT line to add the uscore.autosusend-1 otion:Note that quit slash were already resent otions. So kee other otions you have too.After save the file, udate gru:And reoot.Now check autosusend value:And it should dislay -1.------How can I type special symbols on my Android device like or as a regular character?These are actually Unicode characters you can easily reproduce on your computer:How can I get WHITE SMILING FACE (U263A) with the keyboard?The Android platform supports unicode and all its characters, however the soft keyboard that comes with your Android ROM probably won't carry all your desired symbols.When long clicking on some symbols/characters on your soft keyboard you will see the key pop-up expanding to give you an additional choice of symbols, then drag and release your finger to print them.Installing some 3rd party keyboards (such as GO-Keyboard) will give you access to more symbols.------VirtualBox causes OS start failureI guess the terminal keyboard is set to default settings, meaning the US keyboard, and you use some special keys in your password. Use a picture of the US keyboard end enter your password.Link to Pics of US Keyboard Update: Just comes to my mind....Try to boot an older kernel in 'Advanced options for Ubuntu', if there is one available (press left key right after your computers BIOS/UEFI screen, if you don't see the GRUB boot menu). Your system may boot normally then.To configure your console keyboard, once logged in...Changing TTY keyboard layout on a server?.------Turn off backlit keyboard when computer goes to sleepIf it has batteries, there is simply no way to turn it off as it is most likely that the lights are independent of anything else.If it came with some sort of driver, look through all the options.If it did not come with drivers and is powered through the USB or PS/2 cable, you may have some luck by disabling all options in your BIOS such as "wake on keypress" or similar.That being said, I have dealt with a few in the past and it is usually always on and nothing you can do about it - sorry!------Pop-up appears when keeping a key pressed for more than a second while playing Diablo 3 on OS XThis question belongs on but what you're actually seeing here is that the text entry system that Diablo uses is "well-behaved". (FireFox's text entry system probably isn't, on account of being cross-platform, and Terminal isn't for similar reasons.)This question has the opposite problem, but should be illuminating. stackexchange.com/questions/35576Edit: After a review of the screen shots it appears it might not be as well-behaved as I thought, if it happens outside of areas dedicated for text entry.From the linked question; fix by opening Terminal.app and running the following command:------Is there a word for (computer) keyboard keys that have a valley in them, like caps lock?From reading the term step seems promising, so perhaps stepped keycaps or keycaps with a step?I don't know how "official" the term is but that website has an amazing amount of information on keyboards and keycaps and seems as authoritative as I can find.And from same page ...It usually occupies a prominent place between Tab, Shift and A, and is easily engaged by mistake when reaching for A. To avoid this mistake, many keyboards have a stepped caps lock keycap that places a gap between caps lock and the adjacent letter key.------Math without encil and aerYou mentioned that you use MS Office and that this is slow.The other answers have already said good things, ut here is maye a strange suggestion: Learn LaTeX. Install a nice lain text editor and a version of LaTeX. Yes, LaTeX code can e a it intimidating, ut with time it is not that hard to read. The nice thing aout it is that you are ale to share what you have written with someone else (the PDF file). It is fairly easy to edit. This, of course, might not e the est idea for actually doing mathematics.Just a thought.------Keyboard Input over MS Remote DesktopAlright, so get this: Microsoft Office has its own language settings, distinct from Windows, and these language settings influence the languages which appear in the language bar.Somehow, the language bar was picking English (Canada) as the current language, and this somehow resulted in the strange keyboard inputs. (I live in Canada, and our English keyboards are identical to those found in the States, so I don't know why the keys would be so badly remapped, but I digress...)Run any Office application, bring up Options under the File page, and remove unwanted languages there. This, hopefully, addresses the problem------Should I learn Vim without mapping keys?I personally think you should learn the mappings. It makes reading tips or tutorials on the more obscure functions easier.In the future, you will run into the problem of now translating future readings on Vim features with the key mappings of your own functions. If anything, I'd suggest you create alias or macros for certain workflows. For example, I almost never can remember all the switches the for command accepts in batchfiles. So when I go to write a batchfile, I have an alias that loads a text file of all the friggin switches and options in a split window.------Any cool programs that take advantage of Scroll Lock?Excel uses it (and I think Excel is cool)If you hit scroll lock then move around the sheet using the usual page up / down or arrow keys then you see different parts of the sheet, but the active cell remains unchanged.This is great when troubleshooting or checking formulas and results, as an easy way to move around your data while still staying in one place, which is then easier to return to (eg press scroll lock again to turn it off, press right arrow , left arrow and Excel will bring the active cell back into the visible window).------How to make xinput commands permanentHere's my final solution, I corrected an extremely unlikely and irrelevant race condition in Nir's answer. Also I handle the fact that I can't remap the keys when the mouse is unplugged (no error messages while it's unplugged).I added to /.xinitrc:I used the mouse ID parsed from xinput as the trigger instead of lsusb, but it's has the same effect.Note that the pipes after the xinput command just parses the ID of the mouse, which can change. The extra NEW/OLD mouse ID's were an anal avoidance of any possibility of a race condition.Thanks @Nir for the suggestion------Google Chrome is keylogger? closedThis is simply because you are logged in to your Google account when searching Google. Similarly, if you have autocomplete on, Chrome will provide a drop-down "suggestion" on common things, such as name, email address, etc.Unless you can provide more details, at this point from what I can tell from your post, you are simply seeing expected behavior. Google Chrome is not "keylogging" in the sense that it is capturing your credit card numbers and sending them to bad people.There are ways to turn off autocomplete and search history synchronization in Chrome settings and in your Google Account settings------How does a cpu represent bits? closedA transistor can represent two states - on and off - means 1 and 0 - means 1bit. So why we don't use only 32 transistors to represent 32-bit data? Why are there logic gates which contain normally 2-8 transistors in each to represent 1 bit only in each gate, which commonly input 2 bits and output 1 bit?A transistor cannot represent two states. It can, however, be used as one component within a larger circuit and that circuit can represent two states.There's plenty of existing text on the 'design of logic gates' on the Internet that will cover this in great detail this for you.------Why don't mobile keyboards have a delete button?If I'm understanding the question correctly, we're looking at why there is no Delete key (those above the arrow keys on a traditional physical keyboard) while there is still a Backspace key, I can provide a few reasons based on my own experience and observations:I can personally say that in most mobile typing use cases (email, SMS, etc.) the backspace key is sufficient for "undoing" my action. The similarity of the Delete key likely means it isn't as important, as deleting the character in front of the cursor is a more precise/specific action that won't be needed as often.------Space as modifier key XKBI think you're going to have immense difficulty getting the 'tap to space; hold to shift' behavior.That said, you can use xkbcomp :0.0 to dump the current keymap from the server to a file server-0_0.xkb, and I think I see an easy way to get the space bar to function as as modifier:Try replacing space with Mod5 (or whichever modifier key makes most sense), and then add a new modifier_map line:This is untested, but it feels right.I don't know how you'll get a plain old space though. I'd suggest mapping it to another key entirely------Cannot change brightness on lock screenI make my own brightness hotkeys using xbacklight.After xbacklight is installed:There is a little plus sign on the bottom right that says "add" when you hover over it.Make two custom commandsSet the keys for these to(ctrl (brightness up key))(ctrl (brightness down key))On my laptop I use (ctrl f5) and (ctrl f6) for my brightness keys.What this is done it is possible that you can set your brightness to zero and get no video output. When that happens you will have to press the keys to increase your brightness to get your video back------Why the human mind can say stories that never happened? closedHuman mind can put together concepts it has learned to create stories. It part of our imagination. How it works exactly is not known, but it is an important part of our intellect and learning faculty. Whether or not it is deterministic or not is an interesting question. For example, ask a person to produce a random number and he can, but how it is done is not known. Teaching stories like those from mythology and religion help us to understand life and ourselves better. Remember also that we can intuit information from the spiritual realm also via communion with God.------Gnome shell: pressing the super key does not workfinally found it myself.In older Ubuntu versions, go to System Settings > Keyboard Layout > Layouts and then choose Options.In newer Ubuntu versions, install Tweaks (sudo apt install gnome-tweaks) and open it, then Keyboard & Mouse and then choose Additional Layout Options.There is an option for the Alt/Win key behaviour and there I had the option selected Meta is mapped to Win keys.Deselecting that option, and choosing Alt and meta are on Alt keys fixes it for me. At least the super is working again to access the Activities. Not quite sure what the impact is of this choice.
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