[arch-general] xf86-video-intel-2.20.5

[Jameson]

Updating xf86-video-intel to 2.20.5 today results in my DRM driver
hanging when I try to use compiz.  Has anyone else seen this, or am I
just lucky with my hardware configuration?  Does anyone know of
something new that got turned on by default in this version that could
result in this:

Aug 27 12:39:09 localhost kernel: [    4.733046] [drm] Initialized
i915 1.6.0 20080730 for 0000:00:02.0 on minor 0
Aug 27 12:42:27 localhost kernel: [  219.129987]
[drm:i915_hangcheck_ring_idle] *ERROR* Hangcheck timer elapsed...
render ring idle
Aug 27 12:42:37 localhost kernel: [  220.723319]
[drm:i915_hangcheck_ring_idle] *ERROR* Hangcheck timer elapsed...
render ring idle
Aug 27 12:42:37 localhost kernel: [  222.229987]
[drm:i915_hangcheck_ring_idle] *ERROR* Hangcheck timer elapsed...
render ring idle
Aug 27 12:42:37 localhost kernel: [  222.230044]
[drm:i915_hangcheck_hung] *ERROR* Hangcheck timer elapsed... GPU hung
Aug 27 12:42:37 localhost kernel: [  222.230087] [drm] capturing error
event; look for more information in /debug/dri/0/i915_error_state

I'll be happy to post more information, and/or a bug later if that
will be helpful.  For now, I need to get caught back up at work.

Thanks,
=-Jameson