Could we, instead offer HDMI and if people needed other TV outputs
we could offer a plugin card?
Nick LaForge wrote:
Why not just digital RGB and analog RGB by DVI? Component and
composite can be had from those. (Not sure if this is economical
though). HDMI is compatible with digital DVI signals, right?
Digital DVI and HDMI actually have the same _digital_ video signals in
them so it is just a matter of getting an adapter or cable to convert
from one to the other. They transmit digital RGB over one or two serial
links. The difference is that HD stuff is more likely to have HDMI.
*AND*, DVI can also contain the analog VGA signals, but it doesn't have
to (it can have either one or both). An analog DVI plug isn't supposed
fit into a digital only DVI socket.
HDMI can also include digital audio.
Also HDMI is supposed to support HDCP. Again, DVI, can support it but
IIUC this is not common. I'm not sure how relevant this is since there
is no way to get Linux to promise not to tell hardware to output an
encoded signal -- but if we want to have a Vista capable board ... .
IAC, wide screen digital computer monitors are going to have HDMI and
support HDCP otherwise Vista won't let them watch HD-DVDs.
And surprise!! :-( there are very few video boards that support HDCP
even if they have an HDMI connector. Google for it if you are
interested; it is a major scandal.
I don't know how popular the VGA (15 pin sub min D) connector is in new
equipment but I suspect that we really don't need to have it either
since you can get an adapter to connect VGA to analog DVI.
--
JRT
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