How to enable CTRL + ALT + BACKSPACE in lubuntu?

[Bazon]

short:
CTRL + ALT + BACKSPACE does nothing for me in lubuntu. How can I enable it to kill x?

long:
Although otherways very happy with lubuntu, recently my lxde panel froze and there was nothing I could do on anymore. So I'd like to use CTRL + ALT + BACKSPACE, but nothing happened. So what could I have done instead of rebooting?

[mikewhatever]

Really, there were several things you could have done.

1. ctrl-alt-f1, login, then sudo service gdm restart.

2. Reboot gracefully (http://www.arsgeek.com/2006/12/12/how-to-gracefully-reboot-your-ubuntudebian-system-if-all-else-fails/).

To enable ctrl-alt-backspace, open Keyboard, Layouts tab, Options, Key sequence to kill X.

[Bazon]

1. ctrl-alt-f1, login, then sudo service gdm restart.
thanks!


To enable ctrl-alt-backspace, open Keyboard, Layouts tab, Options, Key sequence to kill X.
No, that's not in lubuntu: in lxkeymap, there is no "options".

[mikewhatever]

Of cause it isn't, silly me, Lubuntu. There used to be a package, dontzap, in the repositories that provided the option, but I don't see it now. An alternative would be to edit /etc/X11/xorg.conf and add the following:


Section "ServerFlags"
Option "DontZap" "false"
EndSection

[Peadogie]

Lubuntu does not uses GDM it uses LXDM.

Open /etc/xdg/lxsession/lubuntu/autostart as root and add:

@setxkbmap -option terminate:ctrl_alt_bksp

Log out . Your set.

[Dave_L]

Alt+Sysreq+k will kill X in Ubuntu. I don't know if it works in Lubuntu.

[ajgreeny]

Alt+Sysreq+k will kill X in Ubuntu. I don't know if it works in Lubuntu.
It surely does!

[Bazon]

Thanks, it does and that's all I need! :-)
(Sometimes it has to go fast...)