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

Jesse Barnes
2010-01-27T18:01:09Z

On Sun, 24 Jan 2010 23:23:04 +0100 (CET)
"Rafael J. Wysocki" <rjw-KKrjLPT3xs0@public.gmane.org> 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 : http://bugzilla.kernel.org/show_bug.cgi?id=14939
> Subject : drm: random hang with i915
> Submitter : Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>
> Date : 2009-12-07 17:30 (49 days old)
> References : http://marc.info/?l=linux-kernel&m=126020704125723&w=4
> Handled-By : Jesse Barnes <jbarnes-Y1mF5jBUw70BENJcbMCuUQ@public.gmane.org>
>

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