[Intel-gfx] [PATCH] drm/i915: encoder/connector internal structure rework
zhenyuw at linux.intel.com
Mon Mar 1 19:15:13 PST 2010
On 2010.03.02 11:01:41 +0800, ykzhao wrote:
> > > Why? As from sdvo spec, I think both s-video/composite could exist,
> > > and
> > > for TMDS0/1 too. It just forces that when TMDS1 exists, there must be
> > > TMDS0.
> > Hmm.. I doubt if more than one of CVBS/COMP/SVID could work simultaneously, even though there is a kind of SDVO TV card that have these 3 interfaces. blending them together as one connector called TV may be better. Just like the intgegrated TV, even though sometimes we can see more than one built-in connector ( 80% only have one external connector though ), they can't work at the same time.
> I agree. It seems that the SDVO-TV card can report its capability that
> it can support CVBS/SVIDE/COMP. As they use the same SDVO-TV encoder,
> maybe they can't work simultaneously.
> At most cases the SDVO-DVI card will export only one external connector.
> Even when it can export more than one connector, the two connectors
> can't work simultaneously as one SDVO encoder is shared by the two
This actually doesn't conflict with current code, as we already assumed
only one type of connector can work with SDVO encoder for a single time,
the 'attached_output' is set to response value for GetAttachedDisplays request.
Open Source Technology Center, Intel ltd.
$gpg --keyserver wwwkeys.pgp.net --recv-keys 4D781827
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