On Sat, Dec 01, 2012 at 08:04:52PM +1300, Chris Bannister wrote: > Have a look at the /etc/inittab file. > > I have: > # less /etc/inittab > [...] > # What to do when CTRL-ALT-DEL is pressed. > ca:12345:ctrlaltdel:/sbin/shutdown -t1 -a -r now I'm fairly sure that X eats CTRL-ALT-DEL and init doesn't get to see those keypresses: so in X, CTRL-ALT-DEl does not trigger a shutdown.