Disable shift-backspace logout

I been very annoyed by this lately and I dont know why I all a sudden started doing this more often but I have wrote out long posts on forums and everything and then done this and lost it all. Anyway there is lots of articles on this out on the net so I figured I would post here for future refference

You have to type:

xmodmap -e "keycode 22 = BackSpace BackSpace"

after your Window Manager started

And because my AltGr key didn’t worked too i first looked at the keycode with xev which was 113.

Then a little lookup how the key is occupied:

xmodmap -pk

And finally to make the key work again:

xmodmap -e 'keycode 113 = Mode_switch'

put both in your ~/.Xmodmap file:

echo 'keycode 22 = BackSpace BackSpace' >> ~/.Xmodmap
echo 'keycode 113 = Mode_switch' >> ~/.Xmodmap

Article copied from http://princ3.wordpress.com/2006/10/04/disable-shift-backspace-logout-in-xgl-and-enable-altgr/