Hello, for us GPU Passthrough Customers there is one thing left for total happiness (at least for me): Working Upstream QEMU - simply because it brings a sound device which hast working x64 drivers (intel-hda). Afaik Upstream QEMU does not yet work with GPU-PCI Passthrough. I have to admit i haven''t tried it, but perhaps Anthony (or others) could clarify what''s missing in Upstream QEMU (or xen) to make it work Thanks! Greetings Tobias