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Am 03.09.2011 12:52, schrieb Philipp Klaus Krause:
> Am 03.09.2011 12:43, schrieb Daniel Vetter:
>
>> Lately there seem to be a few reports of "my screen doesn't update
>> anymore". One thing that seems to (temporary) fix the problem is to
>> switch to the kernel console and back to X. Does that help in your
>> case?
>>
>
> Yes. Temporary: For a few seconds, then the lower part of the screen
> freezes again. Taking a screenshot using import has the same effect.
>
> Philipp
>
>
>>> This regression was introduced between 3.0 and 3.1rc1.
>>
>> If it's a kernel regression, can you please try to bisect it?
>>
>
> I might have a look at it when I find the time to do so.
>
> Philipp
Here's the output from git-bisect:
d74362c9e45689d8d7e3d4bcf6681c4358ef4f2e is the first bad commit
commit d74362c9e45689d8d7e3d4bcf6681c4358ef4f2e
Author: Keith Packard <kei...@keithp.com>
Date: Thu Jul 28 14:47:14 2011 -0700
drm/i915: Flush other plane register writes
Writes to the plane control register are buffered in the chip until a
write to the DSPADDR (pre-965) or DSPSURF (post-965) register occurs.
This patch adds flushes in:
intel_enable_plane
gen6_init_clock_gating
ivybridge_init_clock_gating
Signed-off-by: Keith Packard <kei...@keithp.com>
:040000 040000 68666ff438ff2b9890a72914905b4aadf53e23ef
101e78df34814a3661c87e9e44d10761d0676d7a M drivers
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