System Settings/Input Devices

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Configuring your input devices


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In this section you can manage the settings for your keyboard.


These sections on advanced keyboard settings refers to KDE SC 4.5.1 version or later.

Enable Control + Alt + Backspace to kill X-Server

Under Advanced tab, make sure Configure keyboard options is enabled. Then look in the list below for "Key sequence to kill the X server". Under it, you should be able to check Control + Alt + Backspace. Once done, click on Apply.

Enable Compose key

Compose is a feature that allows you to write any character you want, no matter the keyboard layout you are using, by pressing a certain key (Compose key) and a series of keys. You could, i.e., associate ‘~’ and ‘n’ characters so they get replaced by a ‘ñ’ character when they are pressed after pressing Compose key. There are many default key combinations, and you can customize Compose configuration file so it better fits your specific needs. You will find more information here.

To enable this feature, first make sure Configure keyboard options is enabled under Advanced tab. Then, check a key from Compose key position tree. Finally, click Apply. From now on, you will be able to use that key as Compose key.


In this section you can manage the settings for your mouse. On the General tab you can configure things like button handedness, and is single or double click opens icon.

On the Advanced tab you can change things like how mover cursor responds to physical movement of mouse.

On the Mouse Navigation tab you can enable moving mouse cursor with keyboard.


In this section you can manage the settings for your mouse trackpad. Settings may vary based on hardware.

Disabling touchpad is currently (KDE4.11.20) not supported on this setting-module. If you have Synaptiks package installed you can disable it with commandline command: synclient TouchpadOff=1. Also Synaptiks gui-app provides settings to manage disabling of touchpad.


In this section you can manage the settings for your joystick.


This section allows you to configure your graphical tablet. This is an optional component that might require separate installation.