Public bug reported: This usually occurs if two users have been logged on to the system via X, even if one has logged out.
Select "reboot" or "shutdown" from the power icon and the whole screen locks up. It does attempt to log out but it simply fails. Nothing happens. Cannot CTRL or CTRL+ALT to another VT and have to SSH from my Android phone to issue a sudo reboot or sudo shutdown. The syslog says it all: gnome-session[2303]: WARNING: Unable to restart system: Authorization is required ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: gnome-session 3.2.1-0ubuntu8 ProcVersionSignature: Ubuntu 3.2.0-31.50-generic 3.2.28 Uname: Linux 3.2.0-31-generic x86_64 NonfreeKernelModules: fglrx wl ApportVersion: 2.0.1-0ubuntu13 Architecture: amd64 Date: Sun Sep 30 21:42:22 2012 InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1) PackageArchitecture: all ProcEnviron: LANGUAGE=en_GB:en TERM=xterm PATH=(custom, user) LANG=en_GB.UTF-8 SHELL=/bin/bash SourcePackage: gnome-session UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: gnome-session (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug precise running-unity -- 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/1059263 Title: Cannot reboot or shutdown system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-session/+bug/1059263/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs