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SubjectRe: 2.6.33-rc2: Reported regressions from 2.6.32
On Tue, Dec 29, 2009 at 04:05:30PM +0100, Rafael J. Wysocki wrote:
> [NOTES:
> * There you go, another round of tracking regressions. It's not too bad at
> the moment, as far as the regressions from 2.6.32 are concerned, but we have
> quite a few -stable regressions, apparently in the DRI area.

I have another one there :)

Immediately upon startup, screen is flickering (becomes
lighter and darker again). The problem occurs with kernels
2.6.33-rc1 to 2.6.33-rc4, but not with kernel 2.6.32 and below.

System details:
x86_64 kernel with 32 bit Fedora 11 userspace
kernel modesetting enabled.

dri2proto dri2proto-2.2
drm 2.4.17-23-g06a2d65
macros util-macros-1.4.1-4-g43e41a5
xf86-video-intel 2.10.0-13-g96f45c6

mesa versions(from glxinfo):
server glx version string: 1.2
client glx version string: 1.4
GLX version: 1.2
OpenGL version string: 2.1 Mesa 7.6-devel
OpenGL shading language version string: 1.20

X.Org X Server 1.6.3.901 (1.6.4 RC 1)


Hardware: lenovo thinkpad T500 with integrated intel graphics.

00:00.0 Host bridge: Intel Corporation Mobile 4 Series Chipset Memory
Controller Hub (rev 07)
00: 86 80 40 2a 06 01 90 20 07 00 00 06 00 00 00 00
10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 aa 17 e0 20
30: 00 00 00 00 e0 00 00 00 00 00 00 00 00 00 00 00

00:02.0 VGA compatible controller: Intel Corporation Mobile 4 Series
Chipset
Integrated Graphics Controller (rev 07)
00: 86 80 42 2a 07 04 90 00 07 00 00 03 00 00 80 00
10: 04 00 40 f4 00 00 00 00 0c 00 00 d0 00 00 00 00
20: 01 18 00 00 00 00 00 00 00 00 00 00 aa 17 e4 20
30: 00 00 00 00 90 00 00 00 00 00 00 00 0b 01 00 00

00:02.1 Display controller: Intel Corporation Mobile 4 Series Chipset
Integrated Graphics Controller (rev 07)
00: 86 80 43 2a 07 00 90 00 07 00 80 03 00 00 80 00
10: 04 00 20 f4 00 00 00 00 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 aa 17 e4 20
30: 00 00 00 00 d0 00 00 00 00 00 00 00 00 00 00 00

Display adapter: integrated LVDS1.

How to reproduce: start X, observe flickering

Filed it here with X log/dmesg/xrandr/intel_reg_dump output:
https://bugs.freedesktop.org/show_bug.cgi?id=26037
(from past experience, http://bugzilla.kernel.org/ reports
seem to have been ignored).

--
MST


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