I'd also like to note, based off of the forum thread conversation on this, that everyone affected appears so far to have an Asus motherboard. I also believe they are all very similar boards with many common chips and design elements.
My MoBo is an ASUS P5N32-E SLI. I have this issue on two computers (both almost identical). Issue began after upgrading to Natty 11.04. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/791089 Title: unexpected reboot after rebooting or shutting down from Ubuntu 11.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/791089/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs