[Nouveau] [Bug 58378] [NV86] Distorted graphics on NVIDIA GeForce 8400M G after upgrade the kernel to 3.7.0 version

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=58378

Ilia Mirkin <imirkin at alum.mit.edu> changed:

           What    |Removed                     |Added
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  Attachment #91714|0                           |1
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--- Comment #70 from Ilia Mirkin <imirkin at alum.mit.edu> ---
Created attachment 91765
  --> https://bugs.freedesktop.org/attachment.cgi?id=91765&action=edit
patch to honor hw disables after vbios

Unfortunately the first patch runs before VBIOS, so if the manufacturer
explicitly disables an engine for some reason (by writing a 0 to those bits) we
should probably honor that. This patch does that (actually 2 patches munged
into 1). I've tested it on my NV98 and it correctly doesn't disable anything,
but would be nice to test it on a card that _does_ disable stuff.

[note, this patch replaces the first patch, not in addition to it]

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