Comment 9 for bug 1896250

2) The same image I used through lbivirt before
 $ sudo qemu-system-x86_64 -machine q35,vmport=off -cpu host -accel kvm -smp 2 -m 4G -audiodev pa,id=pasound,timer-period=5000 -device ES1370,audiodev=pasound -device virtio-vga,virgl=on -device virtio-mouse -device virtio-keyboard -drive file=/var/lib/libvirt/images/ubuntu20.04-Desktop.qcow2,if=virtio,format=qcow2 -display gtk,gl=on -usb -nodefaults -monitor vc -nic user

I think I had some issues, but was drowned in the sound related messages, so I later removed "-audiodev pa,id=pasound,timer-period=5000 -device ES1370,audiodev=pasound" as I was triggering the same audio issues I was seeing before.
That cleared the view but not things were fine AFAICS.

For the sake of not having a great test case I was running glxgears to see if they'd "still spin" or be stuck later when I come back.
After quite some minutes they were still spinning and working (it was in screensaver and I unlocked it to find it happy).