I removed Nvidia accelerated graphics driver (version current)[recommended]
NVIDIA accelerated hraphics Driver (post-release updated) (version current-updates) I am now completely free of proprietary drivers and so far it seems to have worked. I rebooted twice and it the problem was not there. Now the question is what in the drivers is causing the problem. -- 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