On Tue, Jan 10, 2023 at 02:45:30PM +0100, Christian König wrote: > Since this is a device integrated in the CPU it could be that the ACS/ATS > functionalities are controlled by the BIOS and can be enabled/disabled > there. But this should always enable/disable both. This sounds like a GPU driver bug then, it should tolerate PASID being unavailable because of BIOS issues/whatever and not black screen on boot? Jason