I'm seeing this too. Restarting gnome-settings-daemon fixes it - the problem is it has crashed with
Jan 28 11:03:24 lithe kernel: [11775.223320] gnome-settings-[10234]: segfault at 8 ip b7044beb sp bfb1b060 error 4 in libxrandr.so[b7040000+7000] maybe dupe 315974 ** Changed in: gnome-power-manager (Ubuntu) Status: Incomplete => Confirmed -- Closing laptop lid partially changes GNOME theme settings https://bugs.launchpad.net/bugs/316515 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs