Re: [Bug #14939] drm: random hang with i915

From: Jesse Barnes
Date: Wed Jan 27 2010 - 13:01:34 EST

On Sun, 24 Jan 2010 23:23:04 +0100 (CET)
"Rafael J. Wysocki" <rjw@xxxxxxx> wrote:

> This message has been generated automatically as a part of a report
> of regressions introduced between 2.6.31 and 2.6.32.
> The following bug entry is on the current list of known regressions
> introduced between 2.6.31 and 2.6.32. Please verify if it still should
> be listed and let me know (either way).
> Bug-Entry :
> Subject : drm: random hang with i915
> Submitter : Arnd Bergmann <arnd@xxxxxxxx>
> Date : 2009-12-07 17:30 (49 days old)
> References :
> Handled-By : Jesse Barnes <jbarnes@xxxxxxxxxxxxxxxx>

Any news on this one Arnd? Does i915.powersave=0 still fix it? If so
the bug David found and fixed may have an effect. Apparently the
hardware wasn't automatically disabling self-refresh mode when multiple
pipes were active (though maybe you didn't have this config?), which
could definitely cause problems.

Jesse Barnes, Intel Open Source Technology Center
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