Re: [regression, bisected, pci/iommu] Bug 216865 - Black screen when amdgpu started during 6.2-rc1 boot with AMD IOMMU enabled

[Christian König]

Am 10.01.23 um 14:51 schrieb Jason Gunthorpe:
> 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?

Yeah, potentially. Could I get a full "sudo lspci -vvvv -s $bus_id" + 
dmesg of that device?

Thanks,
Christian.

>
> Jason