Yea, same here, if I let it reboot after it rebooted by itself, it works fine.
I've just tried : - updating bios to last version -> same result - enabled memory test at startup -> same result (in case of reboot, then it will reboot during the test, which takes more than 1 minute) - removing nvidia drivers -> same result - safe mode (as you did) -> same result - disabled some elements (network/integrated audio) in the bios -> same result - removing all USB devices -> same result I've also tried inserting a 'sleep' in the last shutdown script (/etc/rc0.d/S90Halt) to see screen messages, but everything seems ok in the screen log -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/776803 Title: Natty does not shut down cleanly (enough for my BIOS) To manage notifications about this bug go to: https://bugs.launchpad.net/unity/+bug/776803/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs