Hi Steve, We've been seeing similar issues with some Dell Latitude and Optiplex models. The work around there is to boot with "reboot=pci". Does this same work around resolve the issue for you? Please let us know. Thanks.
** Changed in: linux (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/850891 Title: Regression: system does not shutdown/reboot To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/850891/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs