[+cc Kenneth, Alex, Christian, amd-gfx]
On Thu, Jul 03, 2025 at 12:09:20AM -0400, Alex Huang wrote:
> Hi,
>
> Recently, I dug up a Radeon Pro WX3100 and when booting, got a black screen
> with some complaints of No EDID read and then a `Fatal error during GPU
> init`. With windows booting fine and an MSI Kombustor run turning out just
> fine, I would say hardware failure highly unlikely. The logs seem unrelated
> (although I have attached them anyways), lspci -vvxxx output for the device
> is also at the end of the email. Also here is lspci -vvxxx for the upstream
> PCI bridge attached to the GPU.
>
> A bisect reveals the offending commit is 0064b0ce85bb ("drm/amd/pm: enable
> ASPM by default"). The simple fix appears to be setting `amdgpu.aspm=0` in
> kernel boot parameters. This seemingly is a case of something in the Lenovo
> ideacentre (specifically the ideacentre 510A-15ARR I found this bug on)
> incorrectly reporting ASPM availability. I'd think this is a PCI driver
> issue, but I am by no means an expert here. If this ends up on the wrong
> mailing list, please do let me know.
>
> I also did try enabling/disabling ASPM on the BIOS side to no avail.
>
> The bug appears to be systematically existent for many other cards I ended
> up plugging into the device (thus conclusion as PCI driver issue). And does
> appear to have an attempt to fix specifically for amdgpu
> (20220408154447.3519453-1-richard.gong@xxxxxxx) but that never went
> upstream.
Hi Alex, thanks very much for reporting and bisecting this issue. I
added the author of 0064b0ce85bb and the maintainers of amdgpu.
