[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 #6 from Corey Bresnan <corey.quixote at gmail.com> ---
(In reply to Corey Bresnan from comment #5)
> (In reply to Ilia Mirkin from comment #4)
> > [    5.212934] nouveau  [     DRM] TMDS table version 2.0
> > [    5.212935] nouveau  [     DRM] DCB version 4.0
> > [    5.212937] nouveau  [     DRM] DCB outp 00: 020003a6 0f220010
> > [    5.212938] nouveau  [     DRM] DCB outp 01: 02000362 00020010
> > [    5.212940] nouveau  [     DRM] DCB conn 00: 00101046
> > [    5.213611] nouveau E[   VBIOS][0000:01:00.0] 0x5c86[0]: script needs crtc
> > 
> > Something unexpected is going on in the VBIOS which breaks everything. Did
> > this work with older kernels?
> 
> At this point, I can only say for certain that it hasn't worked since
> 3.18.4-1-ARCH (currently using 3.18.6-1-ARCH); before that I was using
> Nvidia's proprietary drivers and have not tested with nouveau.

Downgraded to kernels 3.16.* and 3.17.* with the same results.

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