[Bug 80008] Random loss of video output, laptop connected via docking station to two external (DVI, VGA) monitors rotated in portrait mode

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=80008

--- Comment #9 from Chris Wilson <chris at chris-wilson.co.uk> ---
The batch buffer gets overwritten. This seems to happen as it is being read,
but I couldn't spot the culprit within the batch, so I presume it is the render
cache that gets flushed after userspace has written the new batch. You
definitely want to test with the latest kernel and xf86-video-intel.

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