Key combination Ctrl + Alt + Backspace usually used to restart the Xserver. Unfortunately in Ubuntu 11.10 by default key combination is in the disabled state. well, this time I will write a short tutorial How to Enable Key Sequence Ctrl + Alt + Backspace to kill xserver On Ubuntu 11.10

Here is a tutorial step by step How to Enable Key Sequence Ctrl + Alt + Backspace to killxserver On Ubuntu 11.10

Click Activity → Application → System Tool → System Setting → Keyboard Layout

On Keyboard Layout, click the Layout tab → Click the Option button in bottom right corner

Expand “Key Squence to kill the X server” and then Check List Control + alt + Backspace

Done, now Ctrl + Alt + Backspace to kill xserver On Ubuntu 11.10 has been activated