I was sufferring from this, eventually installed Xubuntu 12.04 and all was well
See https://bugs.launchpad.net/ubuntu/+source/linux/+bug/987933/comments/8 If anybody else goes this route please let us know if you are still affected. In my case I can shutdown and reboot without problem and using any driver, nvidia-current and nouveau. -- 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/987220 Title: System does not power off reliably when "Shut Down" chosen from GUI To manage notifications about this bug go to: https://bugs.launchpad.net/indicator-session/+bug/987220/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
