I have the same problem, I can "shutdown" but "logout" gives white screen with small grey box in position where logon name is normally entered in login manager. What section do you put AlwaysRestartServer=true in?
-- "white" gdm freeze on logout https://launchpad.net/bugs/48974 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs