On Wed, Mar 29, 2017 at 8:02 AM, Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> 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.
> > eDP connectors because
> > it shouldn't do any harm, and someone might have been maniac enough to
> > set up an eDP port to point to something with an HDMI 3D setup. And
> > nv50+ hardware only because while I'm not aware of any pre-nv50 cards
> > that have HDMI outputs, there could be a setup out there like the PS3
> > that uses an external HDMI encoder on pre-nv50 hardware, at which
> > point none of the mode timing or InfoFrame support is in place for it.
-- Alastair Bridgewater
>
> 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.
> > eDP connectors because
> > it shouldn't do any harm, and someone might have been maniac enough to
> > set up an eDP port to point to something with an HDMI 3D setup. And
> > nv50+ hardware only because while I'm not aware of any pre-nv50 cards
> > that have HDMI outputs, there could be a setup out there like the PS3
> > that uses an external HDMI encoder on pre-nv50 hardware, at which
> > point none of the mode timing or InfoFrame support is in place for it.
-- Alastair Bridgewater
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