I have the same bug, Ubuntu 12.04 running MacBook Pro Retina, installed NVidia drivers (specifically CUDA 5 driver). This is my experience:
first a general observations: I have another bug which may be related to this one: ctrl alt f1 only gives me black screen (but ctrl alt f7 gets me back) 1. booting in 'text acpi=force' mode (instead of 'quiet splash'): shutdown works correctly (-h -r -P all works) 2. booting in 'text' mode without acpi=force shutdown doesn't power off the computer 2. booting 'quiet splash acpi=force' shutdown doesn't power off the computer -- 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
