[Bug 78462] [gm45] display is black or 1 solid color (white, etc), xrandr reset fixes temporarily

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=78462

--- Comment #1 from Chris Wilson <chris at chris-wilson.co.uk> ---
That the screen spontaneously dies would suggest a FIFO or SR underrun. I don't
think the great WM updates touched g4x per-se, but it is always worth checking
drm-intel-next in case they did magically fix something. You should also
disable output polling (use drm_kms_helper.poll=0). Also running with
drm.debug=6 and note the time when the screen dies so that we can see if there
is any event about that time.

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