[Bug 38689] Black xorg screen with kernels newer than 2.6.34.x

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=38689

--- Comment #11 from Javier Marcet <jmarcet at gmail.com> 2011-06-27 07:27:34 PDT ---
(In reply to comment #9)
> (In reply to comment #8)

> Does setting the environment variable vblank_mode=0 for xbmc work around the
> problem?

Michel,

upon further testing how it performs in the three different scenarios, video
playback
is definitely worse with the 2.6.35 patched kernel and even worse with
vblank_mode=0
with a 2.6.39 kernel.

With the patched kernel it seems playback starts playing fine but after a while
it gets
that blockiness I told you before.

BTW, I am running the latest xorg release candidate, but mesa 7.9.2.
I didn't notice any difference at all between all the xorg releases I tested,
whereas with mesa 7.10
playback gets worse than with 7.9.x compiled without llvm, gles or gallium.
With 7.10 playback is unchanged by any of these.

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