title: virt-manager guest resize not working
body: <p>Installed virt-manager,
  target virtual machine is debian jessie with spice-vdagent installed
  shared clipboard, and latency-free mouse input works</p>
  
  <p>Display: Spice
  Video: QXL
  Channel spice: spicevmc, virtio, com.redhat.spice.0 (confirmed /dev devices exist in target vm)</p>