I'm also facing some glitches and oddities with LightDM in wheezy when shutting down the system.
Besides the login dialog is quickly displayed (this occurs randomly) the main problem I experience is that system restarts instead of powering off (when pressing the "shutdown" button, of course), while shutting down from console (by means of "shutdown -h now" command) always works as expected. I'm using nvidia VGA card and nouveau driver, on XFCE. Curiously enough, on another system (running Wheezy and XFCE) I've never experienced such problems but this second systems uses the nvidia closed source driver. Greetings, -- Camaleón -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org