On Fri, 2019-09-06 at 09:24 -0400, Ilia Mirkin wrote: > On Fri, Sep 6, 2019 at 7:43 AM Ville Syrjälä > <ville.syrjala@xxxxxxxxxxxxxxx> wrote: > > On Fri, Sep 06, 2019 at 11:31:55AM +0000, Shankar, Uma wrote: > > > > > > > -----Original Message----- > > > > From: Ilia Mirkin <imirkin@xxxxxxxxxxxx> > > > > Sent: Tuesday, September 3, 2019 6:12 PM > > > > To: Mun, Gwan-gyeong <gwan-gyeong.mun@xxxxxxxxx> > > > > Cc: Intel Graphics Development <intel-gfx@xxxxxxxxxxxxxxxxxxxxx > > > > >; Shankar, Uma > > > > <uma.shankar@xxxxxxxxx>; dri-devel < > > > > dri-devel@xxxxxxxxxxxxxxxxxxxxx> > > > > Subject: Re: [PATCH v4 3/7] drm: Add DisplayPort colorspace > > > > property > > > > > > > > So how would this work with a DP++ connector? Should it list > > > > the HDMI or DP > > > > properties? Or do we need a custom property checker which is > > > > aware of what is > > > > currently plugged in to validate the values? > > > > > > AFAIU For DP++ cases, we detect what kind of sink its driving DP > > > or HDMI (with a passive dongle). > > > Based on the type of sink detected, we should expose DP or HDMI > > > colorspaces to userspace. > > > > For i915 DP connector always drives DP mode, HDMI connector always > > drives > > HDMI mode, even when the physical connector is DP++. > > Right, i915 creates 2 connectors, while nouveau, radeon, and amdgpu > create 1 connector (not sure about other drivers) for a single > physical DP++ socket. Since we supply the list of valid values at the > time of creating the connector, we can't know at that point whether > in > the future a HDMI or DP will be plugged into it. > > -ilia Ilia, does it mean that the drm_connector type is DRM_MODE_CONNECTOR_DisplayPort and protocol is DP++ mode? And Ville and Uma, when we are useing dp active dongle (DP to HDMI dongle and DP branch device is HDMI) should we expose HDMI colorspace? -G.G. _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
