Comment # 1
on bug 103486
from Michel Dänzer
(In reply to Andy Furniss from comment #0) > R9285, I notice that on both drm-next-4.15-dc and amd-staging-drm-next, Which commit exactly of amd-staging-drm-next? > when using DC, vblank_mode=0 works windowed but not properly full screen. > > Tried forcing TearFree from auto to off no difference. That's expected; forcing TearFree on works around the problem though. :) > There is no tearing where it would be expected - but it's not like it's just > being ignored, a bench mark test will cap fps at 2X refresh rate rather than > 1X. > > Maybe this is expected? Definitely not, looks like there's been a regression affecting async flips. > It doesn't happen with a months older DC kernel I have [...] Can you try bisecting? Otherwise I'll try next week.
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