[Nouveau] [Bug 89484] [NVD9] xrandr no output to DisplayPort with GeForce GT 520M.

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=89484

--- Comment #8 from Corey Bresnan <corey.quixote at gmail.com> ---
(In reply to Ilia Mirkin from comment #7)
> Could you supply a dmesg from a boot with
> 
> nouveau.debug=trace drm.debug=0xe

See below.

> where you try to activate the DP screen? It's unclear whether your vbios
> issue is related to your DP problems. Additionally, can you confirm that
> you've properly set up the provider stuff as per
> http://nouveau.freedesktop.org/wiki/Optimus/ to be able to use reverse
> prime? (I guess if it shows up in xrandr, that's a pretty good sign.)

As far as I can tell, the provider stuff is set up correctly as per the link
(I'm not sure as to what specifically you would like me to confirm, could you
please elaborate?). On closer inspection, I think the VBIOS issue is related,
*but not limited* to my DP problems; I can't seem to access the GPU with other
methods, i.e using the method described in the above link or via bumblebee for
example.

> Lastly, the reason for the VBIOS errors is that we hit unexpected opcodes in
> some scripts. Seeing what the blob does would be instructional. If possible,
> please produce a mmiotrace of nvidia's driver. See
> https://wiki.ubuntu.com/X/MMIOTracing for a quick guide.

See below.

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