[Polaris] Glitches in New Super Mario Brothers U in Cemu on Polaris and Tahiti (maybe more)
Submitted by John Galt
Assigned to Default DRI bug account
Created attachment 141980 dmesg from boot to the issue
This is a semi recent (within the last few months) bug on Polaris in NSMBU. Many polygons (maybe?) have major glitches across the screen, or don't show up at all. This doesn't occur on Tahiti or Pitcairn. I've gone back to 18.2.1 and verified it still exists, so it must be prior. It also exists on both linux 4.18.12 and the amdgpu-staging-drm-next branch. I'll continue attempting to bisect, unless someone else knows exactly what the issue is.
There are quite a few GPU faults listed in the attached dmesg, though I'm not sure if they're related to the issue. Glxinfo, Xorg.0.log, as well as a screenshot of the issue.
Attachment 141980, "dmesg from boot to the issue":