Bug#539400: xserver-xorg-video-intel: X performance drops and X crashes

On Fri, Jul 31, 2009 at 04:06:09PM +0200, Julien Cristau wrote:
> On Fri, Jul 31, 2009 at 15:56:23 +0200, Mario 'BitKoenig' Holbe wrote:
> > Please let me know if I can provide more evidence.
> Xorg log and dmesg are a must.

All right, here we go. All the evidence attached is from a fresh boot
with linux-image-2.6.30-1-686-bigmem_2.6.30-4_i386.deb and
xserver-xorg-video-intel_2%3a2.8.0-1_i386.deb, starting firefox to watch
X at 100%, stopping it and playing some random video downloaded from
youtube to crash X.

Xorg.0.log.old  The X.org log until the crash
Xorg.0.log      The X.org log after the crash - note the differences
dmesg           dmesg output after the crash
mplayer.out     mplayer output until the crash (just for completeness)

> eww PAE kernel.  GEM doesn't work there before 2.6.31, so that'd cause
> issues.

Indeed, xawtv does not complain anymore about failing to initialize GEM
(whatever that might be).
With the above setup xawtv works in 'overlay' capture mode and crashes X
in 'grabdisplay' capture mode just like mplayer does.

Would it probably be possible to just disable this GEM thingy on setups
where it does not work?

> Care to try either a .31-rc kernel, or the non-pae 2.6.30?

I tried linux-image-2.6.30-1-686_2.6.30-4_i386.deb and X performs well
with it, no crashes anymore. However, xawtv does not work anymore in
'overlay' capture mode - it shows a black screen only. The CPU-burden
'grabdisplay' capture mode works.


regards
   Mario
-- 
I heard, if you play a NT-CD backwards, you get satanic messages...
That's nothing. If you play it forwards, it installs NT.

Xorg.0.log.old
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Xorg.0.log
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dmesg
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mplayer.out
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