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

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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 ...
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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 ...
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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 ...
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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 ...
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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 $ ...
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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; ...
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23 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 ...
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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 ...
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1answer
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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 ...
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40 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 ...
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39 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?
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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 ...
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30 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.
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1answer
38 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 ...
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Remapping two (simultaneous) keypresses to a single keycode

Is it possible to use X keyboard functionality to remap two keypresses to different keycode? I am asking because couple of keys (such as Q and P) on my laptop don't work anymore, thus I have to use ...
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1answer
24 views

make existing rdesktop session grab keyboard/mouse

By default, rdesktop grabs keyboard, so that key combinations such as Alt+Tab or Alt+F4 act inside the rdesktop window. This can be overridden with the -K option rdesktop -K myserver.mydomain.com ...
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1answer
28 views

How to map extended buttons on mouse?

I am trying to follow this guide to using a Logitech G600. I have (using a windows computer) mapped each key combo on the mouse to something on a normal keyboard. I have set up some rules in ...
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How to show the status of all modifier keys in X11?

I have a remote connection through NX client (Remmina) on my local box (Ubuntu 12.04) onto a remote Linux box (CentOS 5.3) with no root privilege, and it only has a strictly restricted internet ...
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39 views

Make a key act as a modifier when combined with another key

I want to achieve the following effect: [ Key1 pressed & held, then Key2 pressed & released, then Key1 released ] acts as [ Ctrl + Key2 ] but Key1 pressed and released act as Key1 So, for ...
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1answer
26 views

password is not recognized on login via wireless keyboard?

When I start my Linux Mint, the first display I met is the Login-Display. I am asked for my username and I can type using my wireless keyboard, the username is beeing displayed correctly. But after ...
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42 views

Bluetooth keyboard not showing up in /dev/input

I've just installed an Apple Wireless keyboard on a Debian system. I used this guide and only console tools — no X on that machine yet. The keyboard works fine. Now I want to remap a right Cmd key ...
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1answer
53 views

How to turn off scroll lock LED, indicating keyboard layout, when the PC is turned off

I edited the file /etc/X11/xorg.conf.d/90-keyboard-layout.conf: Section "InputClass" Identifier "keyboard-all" MatchIsKeyboard "on" MatchDevicePath "/dev/input/event*" Driver "evdev" ...
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Why when I press bloc num, my linux writes on disk?

As title, when I enable or disable the Bloc Num, my Archlinux writes something on disk. I can't understand what it saves, probably it's logging, but I can't find nothing in logs. And also, why should ...
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How to enable Acer Aspire One 725 0802 touchpad & F Keys?

I recently tried to install the Elementary Luna OS using Unetbootin. Instead of installing to a USB or CD to boot from, I installed the OS to the hard drive. It seemed to install fine, the BIOS ...
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159 views

Debian wheezy, 3.19, problem keyboard and mouse on dekstop environment

I am running Debian Wheezy on a BananaPi. I just compiled the kernel and the keyboard was working in terminal(if it's called that way). However, after I installed a dekstop interface using "apt-get ...
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How can the xkb layout settings be simplified?

The question is, if there is a way to simplify the structure of the xkb configuration related to keyboard layouts? As explained in further detail below there are 5 independent places in which a ...
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1answer
42 views

Is (wayland's) libinput something new, i.e., not related to X.Org server?

Having read http://www.freedesktop.org/wiki/Software/libinput/ which states libinput is a library to handle input devices in Wayland compositors and to provide a generic X.Org input driver. It ...
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52 views

How can I make the pairing of the 'ltunify' program permanent?

I have used the ltunify pairing tool for Logitech Unifying Receiver, written by Lekensteyn, on my Logitech M510 mouse and K350 keyboard, which works perfectly. However, when I reboot, these changes ...
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2answers
97 views

Send Mouse commands to PC with Raspberry Pi over the network

Is it possible to have a Raspberry Pi connected to a CCTV recorder via USB and send mouse input commands over the network? The video feed from the CCTV recorder is displayed on a TV with in the ...
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How to use right-Alt key instead of left-Alt key

I have archlinux with i3 window manager. My left alt key is broken and I want to assign left-alt tasks to right-alt. How i can do this? Now when I hold right alt and press a key, just types ...
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Permission of file keeps changing back

I have an Asus G75VX laptop running Fedora 20. The laptop has a keyboard backlight that is turned on by default every time I log in, which is undesirable behavior. I tried to solve the problem by ...
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Fn key results in slashes rather than brightness, etc

I recently upgraded from Ubuntu 14.04 to 14.10. On 14.04, the Fn key controlled bits and pieces such as mute, brightness, volume, lock touchpad, etc. all worked fine. After the upgrade, they don't. ...
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Can't enter GNU GRUB boot menu!

so I booted up an old Linux Mint machine today and I can't seem to remember the password. So I wanted to reset the password using the instructions on Mint's website but when I hold shift the GNU GRUB ...
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Mimic alt + backspace in iTerm2

I'm trying to figure out how to mimic the alt + backspace behaviour in iTerm2. (In a Linux virtual terminal that should delete everything before a non alpha character, I guess) I can send a key ...
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1answer
97 views

setxkbmap command and set local keyboard

Suppose the following code of shell: setxkbmap us ## set keyboard layout to English language ## OR setxkbmap ir ## set keyboard layout to Persian language ### OR setxkbmap ru ## set keyboard layout ...
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How to capture a keyboard shortcut

I need a script, that will run in terminal (under X11), and wait for a keyboard shortcut (happening anywhere in the desktop environment), once that shortcut (or key press sequence) happens, it will ...
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1answer
38 views

How remap my CapsLock key to work as if it was a Return key using setxkbmap?

I tried several things: setxkbmap -option caps: return setxkbmap -option caps: enter I also tried to modify the file /usr/share/X11/xkb/symbols/pc by: "Key <CAPS> {[Enter]};" But nothing ...
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using script function rather than keyboard input

I'm writing a shell script to change a user's password. I tried to use the passwd command, but that command always asks for the old and new passwords to be typed; it won't accept them from my script. ...
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Can another program on X capture my root password while I type it in a virtual terminal?

Usually I only install open source programs on my linux box because I don't trust closed source applications. Recently I had to use Dropbox for a university project. I created a separate linux account ...
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530 views

Mouse and keyboard not working (extreme lag) after fresh install Linux Mint 17.1

After installing Linux Mint Cinnamon 17.1 (32 bit) on my vaio z laptop, the mouse and keyboard start working for a few seconds, then freeze and continue to work very intermittently. For example, I hit ...
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1answer
199 views

Brightness keys not working on 3.14+ kernel

I have a dual-boot installation: OpenSuSE 13.2 & Linux Mint 17.1 on Asus k55vd, both 64-bit. I am running a 3.14 kernel on Linux Mint and 3.16 on OpenSuSE. I had encountered that kernels above ...
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37 views

Is there any way to identify which application is hijacking a keyboard shortcut?

Some application on my system (Ubuntu Linux 13.0) is hijacking a specific keyboard shortcut (Ctrl+Space). I don't know which one it is and would like to identify it. How can I do this?
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xmodmap keybindings don't work

I am trying to use Xmodmap to add some german diareses/umlauts to my keyboard, but Xmodmap is not working with them (but is with other remappings). I am following this guide: German Umlauts on US ...
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1answer
82 views

linux with KDE, disable CTRL+F9 combination key

On my linux (ubuntu) with KDE, when i press CTRL+F9 the system shows all the opened windows as miniatures, allowing me to select one by clicking on it. Unfortunately, the very same key combination is ...
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numlockLed is enabled but numpads are not working

I have put the following code to enable Numlock at boot time. #!/bin/bash for t in /dev/tty[0-9]*; do setleds -D +num <$t; done in start up script. it is working fine on OS level. but after ...
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Bash script run file redirect the license and difent key press to a dialog graphic tool

i am trying to show the license from the ".run" script file in specific , the "TeamSpeak 3 Client" .run , file I am trying to make this with "zenity" , "mate-dialog(s)" and "kdialog" ok right now i ...
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Keyboard key is not recognized even with showkey

I am using Ubuntu 12.04, in a laptop that I carry around and use with different physical keyboards (as I don't feel comfortable with laptop keyboards) For one of those keyboards (Dell SK-8135) the ...
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2answers
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Use/Grab the only keyboard with no user logged locally

I have a raspberry pi running some software (I have the source) that needs user interaction and has a special (USB) keyboard with only 3 keys. The program runs on framebuffer (SDL) and is launched ...
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is this a keyboard hardware limitation?

I have remapped Caps_Lock to Ctrl_L on an ancient mechanical keyboard. It is still impossible to use the caps lock key to produce key combinations like C-e. xev shows the following sequences are ...
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671 views

Bluetoothctl: No default controller available

I'm having issues connecting my Logitech K810 Bluetooth keyboard in Debian Jessie with BlueZ version 5.23-1, kernel 3.16.0-4. The keyboard works fine most of the time but sometimes it doesn't work at ...