[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 #7 from Ilia Mirkin <imirkin at alum.mit.edu> ---
Could you supply a dmesg from a boot with

nouveau.debug=trace drm.debug=0xe

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.)

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.

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