Comment # 29
on bug 84944
from warpme@o2.pl
(In reply to Michel Dänzer from comment #28) > > Oops, my first debugging patch has a bug which causes can_exchange to > spuriously return FALSE. Does it work if you remove that patch? Michel, After patch removal indeed page flipping started to work so no tearing anymore. Unfortunately now I see problem with 2x DI. It manifests as jumpy playback. This is typical when DI is too slow to keep frame rate. I have identical effect on Nvidia's ION1 with Advanced 2x DI (ION1 is too slow for this advanced DI). Mythtv reports: 2014-11-13 13:47:01.013753 I Player(1): Video is 3.18365 frames behind audio (too slow), dropping frame to catch up. 2014-11-13 13:47:01.013783 I AOBase: Pause 1 2014-11-13 13:47:01.014047 I Player(1): Video is 3.45023 frames behind audio (too slow), dropping frame to catch up. 2014-11-13 13:47:01.014064 I AOBase: Pause 1 2014-11-13 13:47:01.014171 I Player(1): Video is 3.40015 frames behind audio (too slow), dropping frame to catch up. 2014-11-13 13:47:01.014188 I AOBase: Pause 1 2014-11-13 13:47:01.014286 I Player(1): Video is 3.1126 frames behind audio (too slow), dropping frame to catch up. It looks like 2x DI problem is only with enabled glamor - as on Brazos with EXA 2x DI works perfect. Also on Kabini it was working OK - but it was OK when page flipping was non-functional. I didn't test Brazos with glamor yet. I done tests with mesa 10.2.8/10.3.3 and xserver 1.16.1/1.16.2 In all cases glamor 2x DI issue is present. If You want to see issue visually - I have short video clip with issue... br PS: is it possible that DI issue is because playback window coordinates are -1 ? Absolute upper-left X: -1 Absolute upper-left Y: -1 Relative upper-left X: -1 Relative upper-left Y: -1
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