I too had this problem (Intel S1200BTS mainboard with EFI), i tried updating to Linux 3.3.0 mainline and it seems to work fine.
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.3-precise/ -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/944772 Title: shutdown does not work To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/944772/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
