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

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Set the key for spanish eñe letter

How can I map the spanish eñe letter to a key combination? What application is suitable for this purpose (xmodmap, xbindkeys, ...)? When I press Caps Lock + n, it should type ñ When I press Caps ...
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1answer
65 views

How do I generate the sequence “\e[Z” in a terminal?

It is bound to menu-complete in GNU readline. $ bind -p|grep menu "\e[Z": menu-complete # menu-complete-backward (not bound) # old-menu-complete (not bound) I think it's Meta-something.
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1answer
612 views

Switch to TTYs without Function keys

At the moment I have a keyboard which lacks function keys (F1 through F12), and I was wondering - is there a way I could switch to textual TTYs (and back, which might prove to be a problem if I were ...
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2answers
888 views

Disable the external keyboard from a script

I have a udev rule for my external keyboard. I can catch events, and by running a script I can also reach udev env variables. Can I disable keyboard with udev? Or must I use a script to disable the ...
4
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1answer
313 views

CapsLock as modifier key for application keymaps

I am developer and currently I am using Ubuntu Linux with PyCharm IDE for development of website. In order to improve typing performance I consider change CapsLock to Hyper_L and assign it to mod3 ...
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1answer
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Create and set custom keyboard layout

I want to create and set a custom keyboard layout with setxkbmap. I created a file in ~/.xkb/prog with this content: partial default alphanumeric_keys xkb_symbols "basic" { include "latin(type4)" ...
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2answers
774 views

How to get user-level access to modifier keypresses in console app?

I need to get access to modifier-key state for a console app I'm writing (a personalized editor). Are there any packages/libs/whatever that provide this access? I cobbled the following from ...
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1answer
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Disabling caps lock by setxkbmap makes it Shift key in Emacs

I'm using GNU Emacs 23.2.1. within Xfce 4.8.0 (both coming from the Ubuntu Natty repository). I disable the CapsLock by running /usr/bin/setxkbmap -option "ctrl:nocaps" at the beginning of the Xfce ...
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'd' Key on VNC Viewer Minimises All Windows

I'm running vnc4server on an Ubuntu 10.10 box, and connecting to it from an Ubuntu 8.04 machine using TightVNC Viewer 1.3.9. I'm unable to type anything with the character d within the VNC session, as ...
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1answer
142 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
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1answer
66 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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1answer
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How can I automatically disable my laptop's built-in keyboard in X.org?

Distro and X.org Version Information I am using Ubuntu 12.10 with xserver-xorg/quantal 1:7.7+1ubuntu4. Disabling Built-In Keyboard in X11 I have a laptop with a built-in keyboard that no longer ...
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1answer
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How to change a keycode using setkeycodes

I have a Thinkpad Edge E130 running Sabayon (a Gentoo-based distro), and I'm fighting the well-know bug Xorg 255 keycodes limit. My laptop has the Fn+F4 hotkey for Mic Mute/Unmute. This is the ...
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2answers
879 views

How does X map from kernel key scan codes to a keysym?

According to this page there is no direct mapping from udev key mappings to X, it has its own mappings. X has a (quasi) total independent way of mapping keys: X reads the kernel keycode table at ...
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Remapping caps-lock to escape, and menu to compose, on the linux console

When running X I use a .xmodmaprc to remap certain keys thusly: ! Make it so that both Caps Lock and Escape do Escape clear Lock keysym Caps_Lock = Escape ! Remap the menu key as Compose keysym Menu ...
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3answers
492 views

Diagnosing xmodmap errors

I'm getting this error when trying to use xmodmap to get rid of caps lock: $ xmodmap -e 'clear Lock' X Error of failed request: BadValue (integer parameter out of range for operation) Major opcode ...
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1answer
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Making udev rule for bluetooth keyboard

I'm using a logitech k810 bluetooth keyboard with my laptop running Debian Wheezy. (I got the keyboard working by following this guide.) By default the F1-12 keys are multimedia keys unless the FN ...
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1answer
683 views

Trying to set keyboard layout using Xorg configuration but it's not working

I'm trying to set my HP Pavilion g6 keyboard layout to English(us) and Arabic(ara). I'm using Fedora 18, but followed Arch Wiki anyways. Here's my 90-keyboard-layout.conf file : Section ...
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1answer
263 views

detect if key is pressed from script

I would like to detect if a key is being pressed when running a script. I have the following script: #!/bin/bash sleep 0.5 xte 'str sometext' I run this script using a shortcut to paste "sometext" ...
4
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1answer
971 views

What does GNOME do with multimedia keys?

GNOME makes multimedia keys, such as fn+directional keys on my laptop, maybe dedicated keys on your keyboard, into very useful keys. They seem to work with a large number of application. What can I do ...
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2answers
115 views

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
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How to get all my keys to send keycodes

I'm using Gentoo with XFCE. I have a logitech K350 keyboard, all but a few of the keys work as expected but there is one specific key that I want to use but when I run showkey no key codes are being ...
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1answer
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How to turn on Keyboard Autorepeat permanently on VMware instances of CentOS 6?

In my lab we have about 40-50 machines, all cloned with the same image of CentOS 6. For some reason the keyboard auto repeat function decides to randomly turn itself off. Typically we just have ...
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1answer
493 views

Have Sun keyboard moon key (116) not shut down my computer

On my Sun keyboard, the top-rightmost key (with a moon image, right above the keypad) shuts down my computer. I'd like it not to, as I hit it by mistake now and then. In /etc/default/keyboard, I only ...
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412 views

Filtering the keyboard input

I have a program that takes input from the keyboard and presents a nice visualization. The purpose of the program is so that my infant can mash on the keyboard and get the computer to do something. ...
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Apple Bluetooth Keyboard

I have an Apple bluetooth keyboard and want to use it with Fedora 15. I turn on the bluetooth on the both devices. Click 'Setup new device' via Gnome3's GUI. The computer detects the keyboard but it ...
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1answer
380 views

Gnome3/Archlinux move windows with keys?

Looking for an app that will allow me to move my Gnome3 windows with keys like Ctrl+Alt+Home to move to top left corner of the screen. Essentially, this is what Winsplit revolution does on windows. ...
4
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1answer
885 views

Disabling or changing console switching keys

For some reasons on my Ubuntu 11.04 Natty running Linux 2.6.38-13, with an Italian layout for the keyboard, the keystrokes AltFx switch between virtual consoles (instead of the normal CtrlAltFx ...
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1answer
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How to make BT keyboard available at login and OS selection screens

Is it possible to have my bluetooth keyboard active before I enter into the desktop environment? I'm unable to type in my login and password at the login screen because the Debian hasn't associated ...
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1answer
834 views

How do I fix unix so that I can use the arrow keys in a terminal?

Before I was able to use the Up/Down arrow keys to cycle through previous commands, but now when I press a directional key it outputs "^[[A". I'm running a bash shell. How do I fix this?
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OS X-like deadkeys behavior on Linux

I'm on Debian (actually Crunchbang), and my notebook has a default US layout keyboard. My native language is Brazilian Portuguese (pt-BR), so I've changed my layout with setxkbmap -layout us -variant ...
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xmodmap for key combination - how to toggle the Fn behavior?

With Logitech K290 keyboard via USB, F. keys are not accessible by default, and I need to press Fn before using them, which is not really usable. The Fn key alone does not fire any event in xev. ...
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4answers
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How can I make Ctrl + Alt act like Alt gr in Ubuntu?

I recently switched to Ubuntu on my laptop and one thing that almost got me to switch back to windows is the fact that I can't make Ctrl + Alt to act like Alt gr. I have programmed in several years ...
4
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1answer
171 views

Set window manager's meta key depending on connected Xserver

Situation A linux server is running an xdm supporting XDMCP, it is connected to from various different Linux and OS X boxes using XDMCP via an X -query <server> command. Once the user is ...
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1answer
254 views

Diacritics do not work in GTK+ applications running on Mac OS X Snow Leopard

I am using some GTK+ applications in Mac OS X Snow Leopard. My MacBook is configured for using the Brazilian layout, which allows it to enter diacritics as dead keys (so I can write á typing ' and ...
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2answers
423 views

How can I write a non-breaking space? [closed]

When I write a question, I'd like the space between the final word and the question mark to be non-breaking, and this very sentence is an example of it (this is why it is awkward), how can I do that ? ...
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1answer
6k views

How to change keyboard keymap

I accidentally set my keyboard type to US during installation, but it actually is UK type. How do I change it? [note] I use Debian Squeeze.
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2answers
261 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. ...
3
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1answer
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How to detect global key presses

I have an Asus laptop that has a special key that can be configured to launch any software (at least on Windows). The general question is: how can I detect any key press (globally)? Then, how ...
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2answers
219 views

Multi-function CapsLock without X

I would like to remap CapsLock to Esc when pressed by itself and Ctrl when pressed with another key without using X. This is similar to a previous question ( Remap CapsLock to Escape and Control ...
3
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1answer
1k views

How to distinguish input from different keyboards?

I want to write an application in Python that you can use with your default keyboard and a specially designed one for the application. I will design it simply by using a small numerical keyboard with ...
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2answers
2k views

Fix keyboard chattering/bouncing on the software side

I have a mechanical keyboard (Noppoo Choc Mini with Cherry MX Blue switches) and after a few weeks, some key presses are getting sent two times even though I press a single time. I found out that this ...
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2answers
527 views

The key codes for Caps Lock, Shift, Left Control and FN key?

Can somebody please provide the key codes for these keys: Caps Lock Left Shift Left Control Option key FN The key code I'm talking about is something along the lines of \<Esc>[200~, although ...
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3answers
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Ubuntu 12.04 Gnome 3 “freezes” randomly - not a normal freeze though

Since upgrading to 12.04, I've randomly experienced this strange phenomenon where my mouse mostly doesn't work and keyboard mostly does. I have not been able to identify a cause for this. Sometimes it ...
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1answer
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Unix User Level Keylogger

I need to record my own keystroke data for some academic research. I wrote a regular keylogger for Windows, but now I need to write one for a Unix environment, with the constraint that I have only ...
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1answer
971 views

sysrq won't reboot with a keystroke, but will with echo “b” > /proc/sysrq-trigger

CentOS 6.2, 2.6.32-220.el6.x86_64 laptop. SysRQ is enabled for keyboard input, as is witnessed by: $ cat /proc/sys/kernel/sysrq 1 Common Magic SysRQ Keys are working such as alt-sysrq-h. However, ...
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4answers
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Matlab gets “crazy” after type special characters

I'm using a computer running Ubuntu and I'm connected through ssh to a RedHat machine where I use Matlab in command line mode (matlab -nodesktop). Matlab version is 7.10.0.499 (R2010a). My problem ...
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2answers
333 views

How does an emulated keyboard work?

I have read that some USB devices emulate a keyboard and the information these devices send will be as if the information was typed on a keyboard. For example: a magnetic card reader can use an ...
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1answer
176 views

How to regain control of my computer?

I am running a database server on my computer. Sometimes it takes up so much memory resources that the system stop responding to keyboard and mouse inputs. Although I can move the mouse pointer and ...
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2answers
472 views

How do I disable the left CTRL on Ubuntu 13.10?

How do I disable the left CTRL on Ubuntu 13.10? Actually I can do it already. All I need to run is xmodmap -e "keycode 37 = " The problem I have is this only works if I run it from the terminal ...