Re: [Intel-gfx] i915 when using vaapi, screen only refreshes on mouse movement

2015-03-07 Thread Brian J. Murrell 
On Fri, 2015-03-06 at 12:23 +, Chris Wilson wrote:
 On Thu, Mar 05, 2015 at 12:05:38PM -0500, Brian J. Murrell wrote:
  
  http://brian.interlinx.bc.ca/intel.debug.gz
  
  as it is currently.  Or is it more useful if it's collected right after
  the Chrome UI hang?
 
 It's only interesting after the hang :)

OK.  Find the above URL refreshed with both dmesg (drm.debug=6)
and /sys/class/drm/card0/error included.

Cheers,
b.




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Re: [Intel-gfx] i915 when using vaapi, screen only refreshes on mouse movement

2015-03-07 Thread Chris Wilson 
On Sat, Mar 07, 2015 at 12:00:22PM -0500, Brian J. Murrell wrote:
 On Fri, 2015-03-06 at 12:23 +, Chris Wilson wrote:
  On Thu, Mar 05, 2015 at 12:05:38PM -0500, Brian J. Murrell wrote:
   
   http://brian.interlinx.bc.ca/intel.debug.gz
   
   as it is currently.  Or is it more useful if it's collected right after
   the Chrome UI hang?
  
  It's only interesting after the hang :)
 
 OK.  Find the above URL refreshed with both dmesg (drm.debug=6)
 and /sys/class/drm/card0/error included.

It's the Haswell GT1 context restore bug. It should be fixed in a stable
kernel near you (or 3.19 to be sure).
https://bugs.freedesktop.org/show_bug.cgi?id=83677
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre
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