Comment 78 for bug 1388612

(In reply to Daniel Vetter from comment #73)
> Just aside to everyone suffering from gen4 gpu hangs: If your kernel doesn't
> manage to reset the gpu after a hang please grab the latest
> drm-intel-nightly branch from http://cgit.freedesktop.org/drm-intel It has
> fixed up gen4 gpu reset from Ville. I'll try to get this into 3.19 (but the
> drm subsystem merge window is kinda gone already).

It works - as in it doesn't crash the GPU, but screen flickers (goes black quickly and then shows content again) and system becomes unresponsive until the page is finished rendering.