How to Enable Ctrl + Alt + BackSpace in Ubuntu Jaunty and Karmic

Method 1 (tested by me and working):

  1. “sudo apt-get install dontzap”
  2. “sudo dontzap -d”

Method 2 (hasn’t been tested by me):

  1. Add the following lines to your xorg.conf file, making sure that when you paste it, it is NOT using smart quotes: “sudo gksudo gedit /etc/X11/xorg.conf”

    Section “ServerFlags”

    Option “DontZap” “false”

    EndSection

  2. you can use “right alt” + “printscreen” + “k”
    to do the same effect

Source 

Update: For Karmic, you won’t find that package, but there is a much simpler method:

Using GNOME
* Get to the System->Preferences->Keyboard menu.
* Select the “Layouts” tab and click on the “Layout Options” button.
* Then select “Key sequence to kill the X server” and enable “Control + Alt + Backspace”.

Source

About SoCRaT

Software Engineer, OSS & Linux Geek
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