Chuck was talking about audio through DVI and it seems true that there is no
standard implementation but is popular among major video card manufacturers.
I can get audio from my display card's DVI port through a DVI->HDMI adapter.
You may use seperate audio output from your PC but some later HDTV does not
support separate audio input. For my new 50" 3D TV from Panasonic, audio has
to go through HDMI port. It is ok if you use separate AV receiver/speaker
but may not work with HDTV.
C.H.Ling
----- Original Message -----
From: "Moose" <olymoose@xxxxxxxxx>
> On 12/12/2013 8:02 PM, Chuck Norcutt wrote:
>> On this subject I only know what Wiki tells me about DVI. But I
>> rechecked and see this: "... So, DVI-D devices output HDMI signals, many
>> including audio, (examples: ATI 3000-series and NVIDIA GTX 200-series
>> video cards),[9] and some multimedia displays input that HDMI signal,
>> including audio, by using a DVI to HDMI adapter. Exact capabilities vary
>> by video card specifications."
>
> HDMI video is identical to DVI, so "From a user's perspective, an HDMI
> display can be driven by a single-link DVI-D
> source, since HDMI and DVI-D define an overlapping minimum set of
> supported resolutions and framebuffer formats to
> ensure a basic level of interoperability."
>
> The reverse is probably generally true, with exceptions that don't apply
> to us garden variety folks, except for HDCP, a
> later DRM. A rights protection source will require two way communication
> that DVI doesn't support.
>
> I've driven a DVI TV off the HDMI output of my notebook using a HDMI to
> DVI cable and an audio connecter.
>
>> So I see what you say is certainly true but it sounds as if there's no
>> standard for the implementation.
>
> I think that's not true. DVI to HDMI video is just mechanical connection.
> Audio is separate.
>
> Movin' Picture Moose
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