Enable Alt+Ctrl+Backspace in Jaunty Jackalope

Ubuntu 9.04 comes with updated X.org server, in which Ctrl+Alt+Backspace doesn't work anymore out of the box. Some silly users complained that this (correctly!) resets their sessions, when they accidentally press the aforementioned combination. Even though I used Linux for many years with success, I was NEVER able to press such extraordinary key combo accidentally.

Anyway, Ubuntu devs listened and Ctrl+Alt+Backspace is turned off by default, what a pity. To restore the normal (old?) behaviour you need to modify X.org settings:

1) Open the configuration file in Gedit:

sudo gedit /etc/X11/xorg.conf

2) At the end paste:

Section "ServerFlags"
Option "DontZap" "false"

3) Restart the system or just the X subsystem ("sudo /etc/init.d/gdm restart" comes to mind) in order for Ctrl+Alt+Backspace to work again. To return to previous setting, remove or comment out added lines, or change "false" to "true" in "DontZap" flag.

Original tip (in Polish): http://www.ubucentrum.net/2009/05/jak-waczyc-skrot-ctrlaltdelete-w-ubuntu.html

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