[Bug 63921] [snb] GTT mapping fails after GPU hang

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=63921

--- Comment #16 from Daniel Vetter <daniel at ffwll.ch> ---
DRI is just the direct rendering protocol between X server and clients and used
by both Mesa for OpenGL and libva for video decoding. Once the gpu is hung (and
reset didn't work) the X server tells the client that by refusing to pass on
new buffers.

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