With this virtio-gpud no longer has to support getting deactivated at
any time to hand back control to vesad. This makes it much easier to add
many new features that a proper graphics driver is supposed to support.
Be aware that virtio-gpud waits for the vsync on every flush request.
Fbcond and orbital are not really happy about this right now and when
something changes multiple times within a single frame, flush requests
queue up, causing the ui to hang until all flush requests are finished.
It is still possible to switch to another VT though which won't hang.
bjorn3
4c4ab2de44