https://bugs.freedesktop.org/show_bug.cgi?id=100395
Bug ID: 100395 Summary: DC, Powerplay, Tonga, top screen flicker with current amd-staging-4.9 Product: DRI Version: DRI git Hardware: Other OS: All Status: NEW Severity: normal Priority: medium Component: DRM/AMDgpu Assignee: dri-devel@lists.freedesktop.org Reporter: adf.lists@gmail.com
R9285 Tonga with current agd5f amd-staging-4.9 I am seeing the top few lines of single DVI-D 1920x1080 monitor flicker when scrolling in eg, a maximised xterm, browser also affected but less so.
Forcing clocks high fixes.
Bisect was a failure, I got as far as -
# good: [38eabe8ecaf5fed9e8122091b27b406563daa2ad] drm/amdgpu: add the HDP 4.0 register headers
# bad: [e2f744ea6cba6a2a7d938ec89def196a59dbdd2d] drm/amdgpu/gfx9: correct wptr pointer value
IIRC said 40 something commits to go.
The next 20 or so are all skips because I got either build fails or startx hangs.
Gave up with the intention of doing git reset --hard e2f744ea6cba6a2a7d938ec89def196a59dbdd2d and going backwards, but as the history after doing that was totally different from as seen from head I didn't bother :-)