A subsequent (clean) reboot results in a working console. So it sounds like qemu is not properly resetting its hardware during the first reboot.
** Changed in: libvirt (Ubuntu) Status: New => Triaged ** Changed in: libvirt (Ubuntu) Importance: High => Medium -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1336801 Title: 12.04 guest hangs on a 14.04 host server with cirrus graphics To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/1336801/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs