[Bug 206225] nouveau: Screen distortion and lockup on resume

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=206225

Ilia Mirkin (imirkin at alum.mit.edu) changed:

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                 CC|                            |imirkin at alum.mit.edu

--- Comment #6 from Ilia Mirkin (imirkin at alum.mit.edu) ---
I see you have nouveau.config=PCRYPT=0 in your kernel config. Why did you add
this -- was there some kind of issue with the engine? Did someone in #nouveau
tell you to do it to help some issue? It's normally used for copy acceleration
on G96 (which would, in turn, be used to copy off any vram data to ram on
suspend).

The reason I ask is that starting with kernel 4.3, that will no longer have the
effect of disabling PCRYPT. The new config to achieve that would be
nouveau.config=cipher=0.

Note that for G96, I don't think anything in firmware-misc-nonfree would affect
it either way.

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