[Nouveau] [Bug 75013] [NVC1] [Quadro 600] Display update issues, stale rendered content

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=75013

--- Comment #5 from Ilia Mirkin <imirkin at alum.mit.edu> ---
(In reply to comment #4)
> (In reply to comment #1)
> > I see that you're using displayport. Is it an actual DP monitor, or are you
> > using a DP->xyz adapter?
> > 
> > I recently posted a patch that should fix computing number of lanes/lane
> > speeds for DP on pre-nvd0 cards:
> > http://lists.freedesktop.org/archives/nouveau/2014-February/016205.html
> > 
> > Can you see if that helps you? Should apply to any 3.9+ kernel.
> 
> I tried the patch but no luck :(

Yeah, if you're not using the DP port, I wouldn't expect it to. In hindsight, I
realized that I misread your log -- you're using the DVI-I-1 connector, not
DP-1.

Unfortunately I don't have any great ideas atm... could you try to upgrade to
the latest kernel and see if things have magically resolved themselves?

Assuming that they haven't, can you attach a boot log with

nouveau.config=PDISP=debug,VBIOS=trace drm.debug=0xe

from the latest kernel? Perhaps it'll yield some interesting info.

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