Hi, IUC this is not a bug in libvirt or virt-manager or qemu. The problem is that windows 7 does not ship with the needed qxl drivers. You need to download those and install them in the windows 7 guest.
http://www.spice-space.org/download.html -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1585008 Title: Windows 7 guests hang on bootup when qxl video is used To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1585008/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs