Same with my Dell Inspiron 1720 ... The problem seems to be related to the "Nvidia propietary driver", not the Ubuntu OS.
Everything (shut down, restart) work perfectly since I have removed all the Nvidia stuff, as in : http://askubuntu.com/questions/189347/how- can-i-uninstall-nvidia-proprietary-drivers Ctrl+Alt+F1 - Login with your username and password $ sudo stop lightdm - Press Enter $ sudo apt-get purge nvidia* - Y (yes) at the question - Press Enter $ sudo apt-get install xserver-xorg-video-nouveau - Press Enter $ sudo reboot Done ! The opensource driver "nouveau" works perfectly (and better than the Nvidia one), so don't worry. -- 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
