[Nouveau] [Bug 76319] [NVE6] MMIO FAULT, black screen on QHD+ K2100M

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=76319

--- Comment #7 from Ilia Mirkin <imirkin at alum.mit.edu> ---
(In reply to comment #2)
> Patched :
> 
> $ diff nouveau/nvkm/engine/disp/dport.c.orig nouveau/nvkm/engine/disp/dport.c
> 276c276
> < 	const u32 bw_list[] = { 270000, 162000, 0 };
> ---
> > 	const u32 bw_list[] = { 540000, 270000, 162000, 0 };
> 
> 
> Oh joy, I now do get a graphical screen (and high-res VT).

Great, so the display part of it is working? Image/resolution is all fine?
Could you also check with your external monitor? No one involved with nouveau
had such a screen, so we weren't sure it would work. I guess we can start
throwing that in when the HW supports it (hmmm... would have to figure out
which HW supports it...)

> 
> Appearantly, I am also bitten by bug #70354 (witness errors.out) ?

Hmmm, looks like it -- but if you're running darktama's latest repo, it should
have a fix for that
(http://cgit.freedesktop.org/~darktama/nouveau/commit/?id=39b5507a36f01dc920fd9d21a70aed62fe4c0fdf)

You could also try using blob pgraph fw, although that is not known to help
that issue.

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