https://bugs.freedesktop.org/show_bug.cgi?id=28114
Summary: Full screen video playback choppy after git commit
78e7047c
Product: xorg
Version: 7.5
Platform: x86 (IA32)
OS/Version: Linux (All)
Status: NEW
Severity: normal
Priority: medium
Component: Driver/Radeon
AssignedTo: [email protected]
ReportedBy: [email protected]
QAContact: [email protected]
After upgrading my ubuntu to lucid I noticed that some videos didn't play well
on full screen anymore, it's slow and choppy. 720p movies play fine, but a
simple 512x336 one doesn't. CPU usage is minimal.
Tried a git bisect on the radeon driver and found that the issue seems to be
caused by the above commit ('Allocate Xv buffers to GTT'). Reverting that one
on the master branch results in smooth playback.
Dell laptop, mobility X1300 card, Core2Duo CPU. Same on kernels 2.6.32,33 & 34.
Problem persists after an update from the xorg-edgers PPA too.
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