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SubjectRe: i915 regression in 2.6.29-rc5
Date
On Tuesday, February 17, 2009 7:24 pm ZhangRui wrote:
> Hi, all,
>
> I got an i915 failure in 2.6.29-rc5.
>
> problem description: the screen doesn't come back after suspend/resume.
> A workaround is to boot with "nomodesetting".
>
> I got this error message during i915 driver load time,
> [ 22.606749] mtrr: type mismatch for e0000000,10000000 old: write-back
> new: write-combining [ 22.606752] [drm] MTRR allocation failed
> [ 22.606753] . Graphics performance may suffer.
>
> and this during s3 suspend,
> [ 1093.793257] PM: Syncing filesystems ... done.
> [ 1093.797692] PM: Preparing system for mem sleep
> [ 1094.119502] [drm:i915_get_vblank_counter] *ERROR* trying to get vblank
> count for disabled pipe 1 [ 1094.514290] Freezing user space processes ...
> (elapsed 0.00 seconds) done. [ 1094.514726] Freezing remaining freezable
> tasks ... (elapsed 0.02 seconds) done.
>
> the problem seems to be related with commit
> 9880b7a527ffbb52f65c2de0a8d4eea86e24775e

Note to Rafael: this is not a regression from 2.6.28 since the KMS code is new
with 2.6.29.

--
Jesse Barnes, Intel Open Source Technology Center


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