[Bug 65099] [GM45] Video corruption on wide desktop

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=65099

--- Comment #7 from Paul Donohue <freedesktop-bugs at PaulSD.com> ---
A few additional observations:

Running `xrandr --output VGA1 --off` when the screen is corrupted causes LVDS1
to revert to normal and the external monitor to turn back off.  (The corruption
isn't permanent.)

Using a real 1920x1200 monitor instead of the 3840x1200 virtual monitor via the
Matrox box doesn't have any problems.

Messing with the '--fb' setting on xrandr changes the behavior of the
corruption but doesn't make it go away.

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