General keyboard topics, including keyboard hardware and keyboard functionality in software.

learn more… | top users | synonyms

1
vote
0answers
10 views

How and when is keyboard data encoded from keyboard to application? [duplicate]

I hope this is not the wrong place to ask this, if it is, please point me in the right direction. As the title says, how and when is keyboard data encoded? I just wanna know in basic terms the ...
0
votes
1answer
24 views

Why are the up and down arrows keys not always working on multiple platforms?

Very recently, maybe within the last two weeks this issue has started cropping up: once maybe every two days or so, the up and down arrow keys simply stop working for a while - I can move the cursor ...
0
votes
0answers
6 views

To get Stable Keyboard Configs for 90 WPM and Dvorak in Debian?

I am trying to set stable keyboard configurations for the user with 90 WPM of correct words per minute and the keyboard layout Dvorak. The cursor location is behaving unstably for instance in editors ...
2
votes
1answer
24 views

Sending key press signals to a background process

I have been learning about daemons and writing them in c. What I want to do is make the daemon receive the global key press signals in ubuntu, and write the received key presses to a separate file. Is ...
0
votes
0answers
15 views

Incorrect keyboard mappings on RHEL v6.4

Spent a while trying to create keyboard shortcuts in terminal for command history access (up/down arrow keys). Realized after some frustration that this wasn't the issue - some keyboard keys are just ...
1
vote
2answers
36 views

How to change specific keys in the keyboard?

My Down and Right arrow keys were no longer functioning. Therefore, it is very difficult to use my laptop.So I want to change the key map like this: Pg up to function as Up arrow key Pg down to ...
1
vote
1answer
22 views

Keyboard fails to work properly

Due to some historic reason, I am running Xorg-1.4 with kernel 2.6.32.21 for an old board. On this board, If I start the X then, mouse works very well. But keyboard fails to run. Only "numpad" works ...
1
vote
0answers
24 views

How to detect Keyboard Function Keys in daemon (FreeBSD) [closed]

I am interested in writing a daemon that watches for raw key events so I can detect the F-keys on my keyboard and launch programs when they are pressed. How can I detect when these F-keys are pressed? ...
3
votes
0answers
33 views

Cannot use keyboard within Qt app without sudo

I have an embedded Qt application crosscompiled that runs on BeagleBone Black. It works Ok, but one thing- It doesnt accept keyboard input if i wont run in directly on BeagleBone Black preceeding with ...
0
votes
0answers
15 views

Some keys on VNC Viewer on windows 8.1 remoting my debian server doesn't work well

I have a server running Debian 8 Jessie with a windows manager E17 running on it and I have a vnc viewer remoting my server using windons 8.1 but when I tried to write on the terminal of my server via ...
1
vote
1answer
12 views

How to specify a specific product in udev hwdb file?

I'm trying to remap the buttons on a peripheral that incorrectly has its buttons mapped to F keys. To remedy this I'm trying to use a udev hwdb file to remap keys only on specif devices. So far my ...
3
votes
1answer
45 views

TTY being flooded by button that doesn't exist being held down

Alright, I'm not really sure what's going on here. My laptop is a Dell precision m4800 running Ubuntu 15.04 64bit. It boots fast, without any issues, and I am able to login and generally go about my ...
2
votes
1answer
18 views

Wine over ssh X11 forward, keyboard problem

When i run: ssh -X myRemoteLinuxIP gvim everything works fine. But when i run: ssh -X myRemoteLinuxIP wine notepad mouse works OK, but keyboard keep typing chars inside ssh terminal window, not ...
0
votes
1answer
39 views

No keyboard layouts in Cinnamon 2.6.7

I upgraded my Cinnamon DE (in Linux Mint 17.1 Rebecca) via sudo apt-get install cinnamon, from my Xfce DE. All is working well except for the keyboard layouts. I'm stuck with a US English layout and ...
2
votes
0answers
24 views

Strange behaviour of the 'r' key on keyboard

I have an Arch Linux machine whose 'r' key started misbehaving recently. This only happens when the language is set to English (in another language, it works correctly), which makes me suspect it's ...
3
votes
2answers
287 views

How do I select text from terminal by using keyboard only?

I used to select text via mouse click+drag but I want to know if I can do the same thing via the keyboard only? I am talking about selecting text with the help of the keyboard on gnome-terminal, etc. ...
1
vote
1answer
49 views

keyboard shortcuts for placing an xfce4 window into the corner

In windows 7 using Windows Key + Left or Right arrow makes a window take up half the screen. XFce 4 has the ability to tile either two windows side by side or 4 windows one in each of four corners ...
0
votes
0answers
7 views

adding keyboard to ubuntu server kiosk

I've set Ubuntu server to be a Kiosk. Now I need to add Hebrew keyboard as-well for the browser. I've run the command: sudo dpkg-reconfigure keyboard-configuration And chose Hebrew and set ...
0
votes
0answers
20 views

All-in-One keyboard and touchpad device, disable touchpad

Im using Xubuntu 14.04. I have a Logitech TK820 (keyboard touchpad combination) and wish to disable the touchpad. In the X log I can see that it is configured as mouse and configured as keyboard. I ...
1
vote
1answer
28 views

How to remap an F key on a specific Keyboard?

I have a peripheral attached that is actually not a keyboard, but all of its buttons are being treated as F keys, they all send the same scancode and keycode as the standard F keys (based of of ...
3
votes
1answer
79 views

How to properly change the keyboard mapping?

I will try to describe the problem in details. Very often I use external keyboard with my netbook. The keyboard is "TK Stealth": Click to zoom You can see, that the numpad, is very similar to the ...
0
votes
0answers
13 views

Ommitting keypressings? (weird problem)

My machine thinks I am pressing keys continously sometimes. Even without keyboard. Xev output here: http://pastebin.com/t0iEKUaE This is just a few sec of it. I am on firefox now, which is ...
2
votes
0answers
66 views

Letter Q stopped working on keyboard [closed]

Letter Q and q stopped working on my keyboard. (I had to find an ascii chart to copy and paste the character.) I really have no clue what's going on. xev produces the following output. ...
4
votes
1answer
158 views

xkb: make ctrl+backspace behave as delete

How can I map ctrl+backspace to behave as delete key with xkb? I can remap a single key on /usr/share/X11/xkb/symbols/pc but can't figure out how to do the combination. My OS is Ubuntu 15.04
1
vote
0answers
24 views

Caldera Debian Keyboard Output Chinese Characters

So, I'm an involuntary IT guy at my current position, and we have come across an issue with Caldera's flavor of Debian Linux. For some reason, with no real prompting, our keyboard starting typing ...
0
votes
0answers
40 views

Where does Debian (Ubuntu) store key mappings?

I've just replaced my Debian installation with Ubuntu today. In my old setup, I configured the Caps Lock to work as another ctrl, but I can't remember how exactly I did it before. However it got ...
2
votes
1answer
62 views

Reading keypresses in shell using trap and Unix signals

I am trying to grasp a fairly involved Unix shell (tested in bash) function that listens for keypresses. The full code can be found here. The part I am having trouble understanding is the purpose of ...
1
vote
0answers
24 views

Linux Mint keyboard and mouse take a long time to work after boot

I turn my computer on, select my linux harddrive, and then I end up at the Linux mint encryption password area. I have to wait about 1 minute just for my keyboard and mouse to actually light up and ...
1
vote
0answers
16 views

kmscon and deadkeys

How can I configure kmscon to use dead keys? I already have xkb-layout=br in /etc/kmscon/kmscon.conf, but the dead keys don’t work. (' + e gives me e instead of é). The layout seems to have been ...
-1
votes
1answer
54 views

My keyboard will not type 'm' or backspace

I am running Arch Linux. Recently, out of nowhere, I have been unable to use the 'm' key or the 'backspace' key on my external keyboard. The keyboard on my laptop works fine. The keyboard I have ...
1
vote
0answers
58 views

How to get the mouse/keyboard raw events?

I want to intercept the raw events from the keyboard (or the mouse, eventually). I tried to use the /dev/input/[...] files, they are very practical and I can read the events of any key even caps lock ...
0
votes
1answer
60 views

Low mouse and keyboard framerate in Fedora 21

I have recently added a Fedora 21 partition on my workplace machine, however i'm experiencing the curious issue that my mouse and keyboard "framerates" are incredibly slow. The mouse cursor is ...
1
vote
0answers
73 views

Some of fn keys not recognized after upgrade

After upgrading my system (including kernel) I discovered that some of fn keys (XF86MonBrightnessUp and XF86MonBrightnessDown) are not recognized by xev and even showkey. Each time one of these keys ...
2
votes
0answers
27 views

Reading GPG passphrase from the physical keyboard in OpenBSD

I'm using Synergy to control an OpenBSD desktop from a Linux computer (think of it like a VNC client/server). That is to say what I type on the keyboard goes through a network connection before it ...
0
votes
0answers
26 views

meaning of ^[[A ^[[D ^[[1;3C and other notation [duplicate]

I noticed that if i type arrow keys on the terminal when it busy on some other process, for example after running gedit without an & i get these symbols i don't understand. I was unable to find ...
1
vote
0answers
66 views

How to permanently remap caps lock to esc in X11?

I want to remap caps lock to escape in X11 (i.e. pressing the physical caps lock button will be interpreted as esc by applications and esc's behavior will not change). The solution must survive an X ...
1
vote
0answers
101 views

Media key problems with Microsoft keyboard

I have a Microsoft All-in-One wireless media keyboard (n9z-00001) which behaves weirdly with my current distribution, Arch Linux. (Linux 3.19.3-3-ARCH #1 SMP PREEMPT Wed Apr 8 14:10:00 CEST 2015 ...
2
votes
0answers
46 views

some function buttons not recognised (even at scancode level) after resume from sleep

As in the title, some function buttons are not being reconised after resuming from sleep. systemctl suspend is used. The buttons work fine after boot and before the sleep but not after. I have tested ...
0
votes
1answer
67 views

How to bind AtlGr to Ctrl+Alt in Debian 7

I'm new to Linux and recently I installed Debian 7 in my laptop. I used to use Ctrl+Alt shortcut all the time in Windows, but in Debian 7 I can only use AltGr. So, I was trying to bind AltGr to ...
1
vote
0answers
24 views

Unable to prevent keypresses from unsuspending laptop

It appears that due to the poor build of my laptop, keys sometimes get pressed in my backpack, even though the lid is closed. This causes it to silently resume from sleep, then overheat and drain the ...
1
vote
1answer
106 views

udev keyboard remapping with hwdb for secondary keyboards

I have a laptop, and I save the following to /etc/udev/hwdb.d/90-custom-keyboard.hwdb keyboard:usb:v*p* keyboard:dmi:bvn*:bvr*:bd*:svn*:pn*:pvr* KEYBOARD_KEY_1a=a KEYBOARD_KEY_1b=b and run $ ...
2
votes
1answer
73 views

How to set up XKB to work with 3 modifier keys and 2 switchable layouts?

Consider the following XKB layout: xkb_keymap { xkb_keycodes { <ESC> = 9; <FK01> = 67; <FK02> = 68; <FK03> = 69; <FK04> = 70; <FK05> = 71; ...
0
votes
1answer
49 views

My shift/ctrl and numlock keys stopped working

My ctrl and right-shift keys are not responding, though they still work in a VMware window. Numlock doesn't work. A held-down key does not repeat. clicking in a field in another window does not make ...
2
votes
0answers
49 views

Remapping Num Lock key to function as Caps Lock

As a followup to this question, my Caps Lock key is now mapped to Compose instead. However, it turns out that my 14 month old toddler still manages to turn on Caps Lock from time to time with his ...
0
votes
1answer
32 views

Xmodmap remapping Caps, but still triggering Caps Lock

Im using CentOS 6.5 workstation, pretty standard config, with normal dell keyboard, EN/US lang and keyboard layout. I have the following in the .Xmodmap keycode 66 = Control_L clear Lock add Control ...
1
vote
0answers
59 views

How many bytes can a keypress return? And should a metafied key return more?

I've been tooling around w/ this input reader lately. Currently it only prints a report to stdout for each key pressed while it runs, but I would like to graduate it to a higher purpose sooner than ...
2
votes
0answers
46 views

How to attach keyboard and mouse to another screen?

By default, the X server would attach keyboard and mouse to display 0:0, but how to change it to another screen such as 0:20?
0
votes
0answers
50 views

How do I realize a Shell Script that keeps track of how long the keyboard has not been used ?

Is it possible to write a script that counts the time between two pressed keys, so that one could put a script into the crontab that checks if the keyboard had not been for longer than a certain time ...
0
votes
0answers
32 views

Map characters to key-combinations

Is there a way to map special characters to the keyboard, using a combination of keys? For example, having Alt+A print out a Greek alpha letter, or having Alt+⇨ print out an implication arrow.
4
votes
1answer
69 views

How to remotely send a keypress to an X11 application?

I've got an X11 program (Mathematica/Linux) running which contains unsaved data (calculated after I left; unfortunately I didn't have the foresight to programmatically save the data). Now I've gotten ...