[Nouveau] [PATCH v2 00/10] Enable HDMI Stereoscopy

[Ville Syrjälä]

On Wed, Mar 29, 2017 at 10:24:05AM -0400, Alastair Bridgewater wrote:
> On Wed, Mar 29, 2017 at 8:02 AM, Ville Syrjälä <
> ville.syrjala at linux.intel.com> wrote:
> >
> > On Mon, Mar 27, 2017 at 05:57:57PM -0400, Alastair Bridgewater wrote:
> > > And the tenth patch enables stereo mode support...  on HDMI and DPort
> > > connectors on nv50+ hardware.  HDMI connectors because obvious.  DPort
> > > connectors because of DPort to HDMI adaptors.
> >
> > Do you mean DP++ or actual protocol converters? DP++ is just HDMI with
> > a some electrical tweaks, but IIRC proper DP defines 3D stereo quite
> > differently than HDMI. I'm not sure if we should be able to push HDMI
> > style 3D through DP->HDMI/DP++ adaptors. The specs are unfortunately
> > very vague when it comes to such devices.
> 
> DP++. Good point about the protocol converters, though I don't recall
> seeing any way to distinguish between a DP and a DP++ connector in
> nouveau, nor do I know if nVidia actually made any boards with DP that
> isn't DP++. I guess I have some digging to do in that direction. Thank
> you.

In i915 we register both a HDMI and a DP connector for the same
physical DP connector, and a sink attached via a DP++ dongle/cable will
appear on the HDMI connector instead of the DP connector. But I don't
know if nouveau follows this same pattern or not.

-- 
Ville Syrjälä
Intel OTC