[libvirt-users] Problems with pmsuspend/wakeup

Hi, I've migrated a Windows7 vm from F17 to F20 and it appears to be working okay. Apparently when it's left idle for some period, it automatically goes into a pmsuspend state, and I'm unable to wake it. I've figured out the virsh dompmwakeup command, which then virsh shows it's running, but the vm is still unresponsive. It doesn't respond to ping and the display is just black when accessing it through virt-manager. Is there something I need to do in the guest for it to wake up properly? How can I just prevent it from ever suspending in the first place? Thanks, Alex