From: wzab <wzab@ise.pw.edu.pl>
Subject: Re: Screen corrupted in Xorg with KMS on 945GM/GMS, 943/940GML chipset
 with kernel 2.6.38.2
Date: Tue, 12 Apr 2011 18:51:59 +0200
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W dniu 12.04.2011 18:41, Bruno Pr=C3=A9mont pisze:
> [CCing intel-gfx]
>
> On Tue, 12 April 2011 Wojciech Zabo=C5=82otny<wzab@ise.pw.edu.pl>  wr=
ote:
>> After I've upgraded my kernel to 2.6.38.2, I started to experience v=
ery
>> often screen corruption in X (it happened also earlier with 2.6.37.3=
,
>> but now is very often.
>> Hardware seems to be OK. I attach  sample screendumps, configuration=
 of
>> my kernel, log of the X server and output of the lspci command.
>
> This looks similar to the xchat corruptions I see (on i855).
>
> Have a look at #34980 (also 945 family) and #35460 on bugs.freedeskto=
p.org.
>
> Bruno

Yes, the similar symptoms have also been reported in Ubuntu

https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/737900

I have yet another machine, with an older chipset - VGA compatible=20
controller: Intel Corporation 82865G Integrated Graphics Controller (re=
v=20
02) no corruptions occur in this machine.