Comment # 9 on bug 109628 from Johannes Hirte

git bisect points me to 

commit df8368be1382b442384507a5147c89978cd60702 (refs/bisect/bad)
Author: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Date:   Wed Feb 27 12:56:36 2019 -0500

    drm/amdgpu: Bump amdgpu version for per-flip plane tiling updates

    To help xf86-video-amdgpu and mesa know DC supports updating the
    tiling attributes for a framebuffer per-flip.

    Cc: Michel Dänzer <michel@daenzer.net>
    Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
    Acked-by: Alex Deucher <alexander.deucher@amd.com>
    Reviewed-by: Marek Olšák <marek.olsak@amd.com>
    Signed-off-by: Alex Deucher <alexander.deucher@amd.com>


Does this make any sense?