Comment # 48
on bug 110659
from Nicholas Kazlauskas
(In reply to tempel.julian from comment #47) > I got a new 1440p 144 Hz FreeSync display, and as expected, the issue is > unchanged with it. > > With it, I've created a new debug dmesg log for render stutter in Oblivion, > this time with your patch applied to drm-next kernel. > > Perhaps this could be interesting? > > > [ 529.556752] [drm:drm_mode_addfb2 [drm]] [FB:79] > [ 529.557106] [drm:amdgpu_dm_atomic_commit_tail [amdgpu]] VRR packet > update: crtc=47 enabled=1 state=3 > [ 529.557164] [drm:dc_commit_updates_for_stream [amdgpu]] debug: full > update issued > [ 529.564401] [drm:drm_mode_addfb2 [drm]] [FB:86] > [ 531.420971] [drm:drm_mode_addfb2 [drm]] [FB:95] > [ 531.459067] [drm:drm_mode_addfb2 [drm]] [FB:96] > [ 544.144771] [drm:amdgpu_dm_atomic_commit_tail [amdgpu]] VRR packet > update: crtc=47 enabled=0 state=2 > [ 544.145961] [drm:dc_commit_updates_for_stream [amdgpu]] debug: full > update issued > [ 544.169447] [drm:drm_mode_addfb2 [drm]] [FB:79] > [ 544.172953] [drm:drm_mode_addfb2 [drm]] [FB:94] This is normal behavior for toggling into and out of VRR. I was expecting to see was a log with hundreds of full updates issued, but since this isn't the case I think it's something more fundamental with vblank timing though I'm still not quite sure why it I can't reproduce it in my testing.
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