Questions tagged [keyboard]

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

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Keys are not detected in Xorg using xev

I have a new mechanical keyboard and I want to use some custom key build-in (C1, C2, C3, C4, C5). The problem I encounter is that those keys are not detected in Xorg when I run xev. I am able to see ...
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1answer
428 views

PS/2 and bluetooth keyboards do not work after reboot - keyboards work when connected to a different computer

The keyboard was not responsive when I turned my computer on today. My computer has a bluetooth keyboard connected using a usb bluetooth adapter, and a wireless (non-bluetooth) mouse. The mouse works ...
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0answers
446 views

AltGr not working as keyboard level 3 chooser

I have an almost fresh install of Kali linux as secondary system on my laptop, which has a standard German 101 keys keyboard. After install the AltGr was working perfectly well as a level 3 chooser ...
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2answers
1k views

Keyboard and mouse doesn't work after accidental deletion of xorg.conf.d

I accidentally deleted the xorg.conf.d folder. Now my mouse, keyboard, touchpad aren't working, and I am stuck on login screen. Also booting with older kernels doesn't work. However, the keyboard ...
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0answers
73 views

Why Gnome 3.22 Assistive On Screen Keyboard supports only Qwerty?

This thread is the continua of the thread How to confirm successful bug report in Debian reportbug? because I could not file the bug report by bugreport in Debian. Assistive technology > On Screen ...
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0answers
64 views

FreeBSD: Does Install media include I2C modules?

When I booted a memstick image of FreeBSD 11.1-RELEASE on my Apple Macbook, the keyboard was not recognised post-boot. I think this is because the keyboard is I2C-based, as plugging a USB keyboard in ...
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1answer
88 views

keyboard remap has killed keyboard

Following a post at fascinatingcaptain, I tried remapping F1 to the g key, as my g key has bitten the dust due to mechanical reasons. I added an entry: key <FK01> {g} ; (getting the "g" by ...
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0answers
65 views

corrupted characters sometimes inserted in terminal

I very often get random "�" characters inserted into my terminal when I type. I think this may be a keyboard driver issue but I'm not sure. I'm using an USB keyboard. Example: $ ls *lock* ls: *�...
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1answer
252 views

Kernel module to connect ps/2 keyboard to usb?

Is it technically possible to write a kernel module to physically connect a PS/2 keyboard to a USB port using a passive converter? If not, why? (If I simply wanted my keyboard to work I would buy an ...
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1answer
348 views

Why do [Ctrl]+[letter] shortcuts suddenly not work anymore in KeePass 2.x under Linux Mint, while most other programs are fine? [closed]

I haven't updated KeyPass 2.x (I'm still on 2.32), so what could have broken this program on Linux Mint 18.1 x64? It used to be that normal Ctrl+[letter] shortcuts like Ctrl+C to copy, Ctrl+U to open ...
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23 views

Use English locale for keystrokes with modifiers

In my Linux system, I use English, Russian and Ukrainian locales. Because the latter two are non-latin (cyrillic), my hotkeys don't work with these locales. Is it possible to always interpret keys as ...
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0answers
79 views

Something strange happens while keypress [duplicate]

I have meka g-unit keyboard. This keyboard has 12 additional keys. I found scancodes of this keys via evtest and mapped these codes to f13-24 key codes. Everything works fine, but some keys(F20,21,22,...
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1answer
187 views

3 arrow keys don't work and spontaneous full kbd failure

I'm running Linux Mint 18.1 MATE Edition on my Acer Aspire R14 R5-471T-51UN. Problem 1 is semi fixed: When the laptop went into suspend mode while on battery when I awakened it to log back in the ...
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1answer
812 views

KDE keyboard repeat delay/rate settings don't work/have no effect?

How can I get the KDE (Plasma 5.8.6 on Debian Stretch) System Settings for keyboard repeat & delay to actually do something? These settings: Whenever I change and apply the settings I don't see ...
2
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1answer
631 views

How do I find out which udev hwdb match is messing with my keys?

I bought a Logitech Unifying keyboard K270 and am running Ubuntu 14.04 (yes yes, I'm working on updating it). Everything works except the 'a' and 'b' keys which are reversed for some reason. I ...
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9answers
27k views

Keyboard set to “cat mode”

I am a cat-owner and a cat-lover. But I don't like it when my cat sits on my keyboard and pushes randoms keys and messes everything up. I have an idea to have a function key that turns off the ...
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2answers
493 views

How to ignore keyboard input buffer in between two `read`

When I run a script like read -n 1 -p 'Enter first variable: ' var1 if echo "${var1}" | grep -iq "^y" then echo "okay" else echo "not okay" fi sleep 2 read -n 1 -p 'Enter second variable: '...
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0answers
243 views

how to disable keyboard on debian 9 with shortcut?

I want to know if it's possible to configure Debian 9 to dedicate one key on the keyboard to disable the the rest of the keyboard. I'm trying to watch something and my cat keeps walking on the ...
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1answer
3k views

What is the default keyboard autorepeat rate?

I know I can change keyboard autorepeat settings with xset r rate <delay> <rate>. Can anyone tell me the default values on Ubuntu? I've checked the man page and tried googling, to no avail....
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3answers
2k views

Map Capslock to Control on Wayland

I've updated to Fedora 26 and now my Capslock key behaves strangely (or not at all). In Fedora 25 the xkb setting worked perfectly for both my Ctrl and Caps changes. I've selected "Caps as Ctrl" in ...
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1answer
2k views

Problems with enabling multimedia-, volume- and brightness-keys in the i3 window manager with Macbook Air

I'm not able to make the multimedia-, volume- and brightness-keys to work in the i3 wm on my Macbook Air from 2015. I have inserted the code which is supposed to enable the buttons however it doesn't ...
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5answers
3k views

Linux HID driver for Primax wireless keyboards

I bought a new keyboard similar to an old one. The old one works, the new one not. The new keyboard has an unusual HID Descriptor and sends one extra data byte. Is there a Linux driver which support ...
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0answers
401 views

Linux HID driver for keyboards sending 1 extra byte

I bought a new keyboard similar to an old one. The old one works, the new one not. There is a difference in one extra data byte sent by the new keyboard. Is there a Linux driver which support the new ...
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0answers
320 views

Map ACPI events to X keys (or to custom commands)

Some of the multimedia keys on my Lenovo X1 Carbon aren't recognized by xev. Each time I press the "volume down" key, for example, I get an output that looks like: FocusOut event, serial 34, ...
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1answer
48 views

Disable F6 key in gnome / linux

I have a very annoying bug where my keyboard send the F6 command after I press the up arrow. I do not use F6 for anything, so is there something I can do to just disable the F6 key? Disabling on ...
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1answer
449 views

usb_serial_init - usb_register failed error with RHEL 7.3, mouse/kb not working

I just installed RedHat Enterprise Linux 7.3 on a new system. After booting into the first-boot set up GUI, my keyboard and mouse are not working. They aren't even powered. I saw during the boot ...
3
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1answer
732 views

xbindkeys (xvkbd): stuck CTRL with Debian Stretch

I am using xbindkeys with xvkbd to add some magic to additional buttons on my mouse which I can press with my thumb. For this, I have xbindkeys in my ~/.xsessionrc and the following lines in ~/....
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2answers
869 views

My keyboard identifies as a mouse

My Logitech Wave Cordless keyboard presents itself as two devices to the kernel. One is a regular keyboard which works fine, but all the additional keys appear as an event-mouse, such that cat /dev/...
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2answers
984 views

How to prevent the keyboard from being interpreted by the current application?

I have 3 USB-keyboards attached to the Linux. Normally, when writing on any one, the characters "going" to the currently active application, e.g. to terminal or any other app. But, me reading the ...
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2answers
1k views

F1-F12 keys don't work

I bought compact keyboard. F1 = Fn + 1 and F2 = Fn + 2 ... But F1-F12 keys don't work on my Ubuntu 16.04. For example F1 makes brightness up. I checked keycodes of F1-F12 keys and they are invalid. ...
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1answer
91 views

Some letters on my Turkish-layout keyboard don't work on Fedora

I installed Fedora 25 as dual boot next to Windows 7. I have Turkish layout keyboard. And OS is in Turkish also. All the other buttons work and write normally, but buttons " i, ı, alt gr" dont ...
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3answers
742 views

Redragon Asura USB keyboard maps all Ctrl, Alt, Win keys to Shift_L

Status: This is fixed as of Kernel 4.18, see the accepted answer for details. I just started using a Redragon Asura USB Keyboard. The keyboard works at a basic level, but unfortunately all the Ctrl, ...
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1answer
339 views

Use Alt-letter symbols on KDE

I've just installed KDE Plasma using Antergos, and I am quite annoyed at the default behavior of the alt-keys, since pressing altGr-2 does not type out the at key, but rather the same command as alt-2....
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1answer
824 views

remapping the caps lock key to less than greater than and pipe key

I recently moved from laptop to desktop. But I have a problem. I bought a cheap chinamade keyboard. However, this keyboard package said, that is was good for german keymap. Upon inspection, it turns ...
2
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0answers
38 views

Reassign “shutdown” button on ASUS notebook

I want to buy asus notebook but all new notebooks have a "shutdown" button insted of "end" at the top right corner of keybord. Is there any way to reassign this "shutdown" button to "end" ...
4
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1answer
730 views

VirtualBox: How to capture shortcuts in the guest OS?

I've set up a VM with VirtualBox. The problem is that the guest system doesn't capture all keys. Although, the option Auto Capture Keyboard is set. Keys like Super or shortcuts like Alt+Tab are ...
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1answer
1k views

Bind function keys laptop

I've just bought a new laptop and I tried to create Keyboard Shortcut to manage screen backlight because the keyboard has them (on the key) but my Xubuntu 16.04 doesn't recognize the correct action. ...
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0answers
577 views

How to prevent high cpu usage by xorg when using multiple keyboards the same time

I am encountering weird problem when using external usb keyboard connected to my laptop. When I am doing keypresses both on usb keyboard and the one from laptop (i.e. keep pressing ctrl on the first ...
2
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0answers
545 views

Adding keyboard layout in Linux Mint [closed]

I'm currently using the latest version of Linux Mint and I'm trying to install a new keyboard layout (NOTE: Add a new one, not change to one that's already installed). The layout I'm trying to add can ...
1
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1answer
113 views

How to programmatically set keyboard shortcut on Mac?

On OSX Sierra, where can I control my keyboard shortcuts through the file system? I'd like to script the setup of the equivalent of XKBOPTIONS="ctrl:nocaps" in /etc/defaults/keyboard on ubuntu, but ...
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2answers
409 views

What happens when you press an extra key on a keyboard?

I am interested in knowing how a keyboard with extra keys work. So for example say I have the following keyboard: You can see that it has extra keys. Now say that I pressed the mute key, what will ...
2
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1answer
91 views

Keyboard LEDs versus Laptop LEDs [closed]

I occasionally use an external keyboard with my laptop. Recently I put my hands on a nice old HP PS2 keyboard, and I'm planning to use that. The keyboard works fine, but I have one minor issue: the ...
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2answers
2k views

Cannot install Linux because keyboard/mouse not working

EDIT: I should mention that my mouse and keyboard are wireless devices. I assume that doesn't matter since a Live version of Windows 7 had no problems with it, and the most basic part of my system (...
5
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1answer
726 views

Mapping scancodes to keycodes

The Archwiki article Map scancodes to keycodes states Mapping scancodes to keycodes is universal and not specific to Linux console or Xorg [...] while the Archwiki article Extra keyboard keys (...
2
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1answer
406 views

Keyboard layout toggle key combination not working

I created the file 00-keyboard.conf in /etc/X11/xorg.conf.d/ with the following options: Section "InputClass" Identifier "system-keyboard" Option "XkbLayout" "latam,ru" Option "...
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1answer
748 views

Virtual keyboard

I am trying to create a virtual keyboard on my linux machine. The machine has only a CLI. I would like to populate /dev/input with another device (something like /dev/input/event20 or so). I figured ...
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1answer
1k views

Can I map something to Ctrl+Shift in i3?

I want to run my script when pressing Ctrl+Shift in i3. But when I'm trying to map a custom command to Ctrl+Shift in ~/.config/i3/config it doesn't work. For example: bindsym Control+Shift exec ...
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2answers
1k views

How to update i3blocks when switching layouts?

I have two different keyboard layouts and I switch between them with Ctrl+Shift. And I want to display my current layout with i3blocks. Now I have a super small single-line script that returns current ...
19
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2answers
33k views

List of terminal generated signals (eg Ctrl-C -> SIGINT)

Where can I find a complete list of the keyboard combinations which send signals in Linux? Eg: Ctrl+C - SIGINT Ctrl+\ - SIGQUIT
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2answers
3k views

Send SIGWINCH from the keyboard

The Wikipedia page on Unix Signals says: SIGWINCH The SIGWINCH signal is sent to a process when its controlling terminal changes its size (a window change). Is it possible to send SIGWINCH ...