For the many users which have this problem and have been redirected here, there are two workaround solutions (until the fix is released):
Work-around 1): Log off from Gnome -> In the login screen press Ctrl- Alt-Backspace (may not always work) Work-around 2): Open a console by pressing Ctrl-Alt-F1 (all F keys from 1 to 6 are valid) -> login -> type sudo /etc/init.d/gdm restart -> give password -> enjoy your restart..... If by error you end in the "frozen" situation (for instance if accidentally pressing Ctrl-Alt-Backspace) DO NOT shutdwon the system using the power button! You can gracefully shutdown by pressing Ctrl- Alt-Del or restart gdm by using the same procedure as in 2) above. ** Summary changed: - gdm does not restart after Ctrl+Alt+Backspace + gdm / X server does not restart after Ctrl + Alt+ Backspace -- gdm / X server does not restart after Ctrl + Alt+ Backspace https://launchpad.net/bugs/34859 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs