[Nouveau] [Bug 82714] [G84] nouveau fails to properly initialize GPU

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=82714

--- Comment #20 from Ilia Mirkin <imirkin at alum.mit.edu> ---
(In reply to Bruno from comment #18)
> Created attachment 116185 [details]
> linux-4.1-rc5+
> 
> Same 4.1-rc5+ kernel but this time around performing nvapeek/nvapoke.
> 
> Doing the peek/poke makes display get signal over DVI but does not prevent
> the system from freezing after X has started.
> 
> The last lines of output from X were (the COPY failure coming some time
> after the rest):
> (--) Depth 24 pixmap format is 32 bpp
> (II) NOUVEAU(0): Channel setup complete.
> (EE) NOUVEAU(0): [COPY] failed to allocate class.

Expected. Your GPU doesn't have COPY engine.

> 
> 
> The PGRAPH/VM FLUSH timeouts look like they could have something to do with
> the freeze and be cause of X COPY failure.

Recent kernels should fix the PDISP hang error, which in turn might avoid
tickling the vm lockup. Can you test a kernel that includes 697bb728d9e (v4.2
should have it).

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