Bilal, lightdm has nothing to do with that, indicator-session is used, the issue is mostly with gnome-session,consolekit but indicator-session since it's what handle the logout dialog could help messaging that somebody else is logged in
** Package changed: lightdm (Ubuntu) => indicator-session (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-session in Ubuntu. https://bugs.launchpad.net/bugs/855556 Title: "Restart" and "Shut Down" don't work if anyone else is logged in To manage notifications about this bug go to: https://bugs.launchpad.net/indicator-session/+bug/855556/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs