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SubjectRe: 2.6.35-rc6+: i915: Bisected regression
Hello Thomas,

On Sun, 1 Aug 2010 12:51:36 +0200
Thomas Meyer <thomas@m3y3r.de> wrote:

> Am 01.08.2010 um 13:42 schrieb Stefan Richter <stefanr@s5r6.in-berlin.de>:
>
> > Thomas, on what hardware did you observe the regression?
>
> Is a Intel mobile express gm45 chipset.

My machine has :
00:02.0 0300: 8086:2a42 (rev 07)
00:02.1 0380: 8086:2a43 (rev 07)

00:02.0 VGA compatible controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 07)
00:02.1 Display controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 07)

(Dell Vostro 1520, BIOS Revision A04)

> > Is it suspend
> > or resume that is unreliable?
> suspend never finishes/hangs.
and is randomly suffering from exactly the same problems...

So, I've applied your hint (in i915_drv.h), rebuilt a kernel, booted, and
I've now successfully managed to go thru several suspend/resume cycles
without having the machine hanging while suspend !

Will check in the long term, but so far, it's a win !

Thx,
Paul



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