LinuxTips
1. The X can be killed by the key combinations:
- CTRL + ALT + BACKSPACE
This can be enabled or disabled by changing the /etc/X11/xorg.conf file
a) As root (i.e. via gksu gedit, kdesu kate, or even sudo vim), first back up your /etc/X11/xorg.conf file (e.g. to /etc/X11/xorg.conf.bak) b) Then, edit that file. Go to the section labelled "ServerFlags". c) Add or change the line Option "DontZap" "x" where x is "yes" or "no". The option "no" will enable it (the default), while "yes" will disable it.
You can see more details regarding this file at the manpage for xorg.conf(5x) (man 5x xorg.conf).