I got this error after an upgrade to hardy-backports and hardy-proposed and found this ticket while troubleshooting.
My solution was to remove the display device, start the VM headless, and then re-add the display device. This seemed to cleanup the virt-manager configuration file. I didn't have a port conflict. -- second virtual machine raises error https://bugs.launchpad.net/bugs/219714 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs