[Bug 111271] Black stripe on screen with MGAG200 (PowerEdge R320) and modesetting

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=111271

--- Comment #7 from Jean-Yves Faye <jean-yves.faye at c-s.fr> ---
Created attachment 202021
  --> https://bugzilla.kernel.org/attachment.cgi?id=202021&action=edit
dumb patch

Some experimentation lead me to this patch, this seems to resolve the problem,
but I have no idead what this function should write in the register so I'm
hoping for someone here to explain the problem.

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