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

[Chris Wilson]

On Sat, Mar 07, 2015 at 12:00:22PM -0500, Brian J. Murrell wrote:
> On Fri, 2015-03-06 at 12:23 +0000, 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