My bad, the hang happens regardless if the HDMI cable is plugged in or not.
However it only happens when a "sudo halt" is issued, not when the machine is shutdown from the menu. Tested on three kernels: 1) linux-image-3.5.0-030500rc5-generic + linux-image-extra (latest upstream kernel) 2) Ubuntu 3.2.0-25.40-generic-pae 3.2.18 (the kernel originally reported on) 3) linux-image-3.2.0-26-generic-pae ** Summary changed: - Shut down hangs when HDMI cable is plugged in + "sudo halt" hangs at shutdown ** Summary changed: - "sudo halt" hangs at shutdown + "sudo halt" hangs during shutdown ** Tags removed: needs-upstream-testing ** Tags added: kernel-bug-exists-upstream -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1019386 Title: "sudo halt" hangs during shutdown To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1019386/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
