Add patch to fix vram idle states with amdgpu overdrive
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Authored by • serebit on Apr 30 2020, 4:50 AM.

Details

Reviewers

DataDrake

Group Reviewers

Triage Team

Commits

R3571:a2073b03497c: Add patch to fix vram idle states with amdgpu overdrive

Summary

This patch fixes artifacting on AMD GPUs with the overdrive bit enabled in kernel boot parameters (amdgpu.ppfeaturemask). This flag erroneously causes the memory idle state to become active in environments where it should be disabled, causing severe artifacting and flicker.

Test Plan

Booted with kernel and verified that the flicker is no longer present with the flag enabled.

Diff Detail

Repository

R3571 linux-current

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Event Timeline

• serebit created this revision.Apr 30 2020, 4:50 AM

Herald added a reviewer: Triage Team. · View Herald TranscriptApr 30 2020, 4:50 AM

• serebit requested review of this revision.Apr 30 2020, 4:50 AM

pspec_x86_64.xml is marked as a binary file due to the massive diff, fyi. Arcanist wouldn't let me upload the diff without marking the file as binary.

Could this fix this guy's issue: https://discuss.getsol.us/d/4437-doom-eternal-weird-artifacts/7

Nah, that issue seems unrelated. The artifacting caused by enabling this flag occurs even on the desktop, and manifests as flickering horizontal bars that stretch across the screen.