1. I have virtual machine created from Virt-manager, it's Windows.
  2. I have attached host PCI device (GPU) to the guest VM, it's recognized, but not used
  3. I know options x-vga=on and -vga=none are friends of mine

But i have no idea how to apply them using Virt-manager GUI, where are no kinds of "X-VGA" and deleting primary display is ignored (set to "Cirrus" mode).

Without this, i cannot force guest OS to use attached GPU/VGA.


Most option you'll need to set using virsh and as far as the Cirrus Video card you must delete all displays first, this includes vnc/spice channels, then you can delete the card. I personally use it as a duplicate head and shut it off before attempting gaming. That way I have a spice channel.

Use this to define your domain schema.

<domain type='kvm' xmlns:qemu='http://libvirt.org/schemas/domain/qemu/1.0'>

And this to send options directly to qemu (example show x-vga=on for the first shared host PCIe device):

  <qemu:arg value='-set'/>                                          
  <qemu:arg value='device.hostdev0.x-vga=on'/>      

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.