General Home Automation pc to lcd TV connectivity

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Subject Author Date
pc to lcd TV connectivity becktonglobe 01-17-08
Posted by becktonglobe on January 17, 2008, 10:16 am
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need to connect pc to lcd tv. currently using a vga cable to carry
video and pc speakers for sound output.

graphics card has a dvi port. can i use this to output video+sound
using a DVI/HDMI cable?
http://www.amazon.co.uk/GIZMO-DEALS-PREMIUM-PLATED-CABLE-PLASMA/dp/B000SSNH9U

my gfx card: http://www.xpertvision.com/en/products/nv_agp_7300GT-Sonic.html

Posted by Bill Kearney on January 18, 2008, 12:56 am
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> graphics card has a dvi port. can i use this to output video+sound
> using a DVI/HDMI cable?

No. DVI won't carry sound. You'd need a video card that has an audio input
connector on it and an HDMI output port. The video card would then combine
the audio with the video and send it along together over HDMI.

Does the TV not have audio inputs? Use those in conjunction with a DVI
video cable.



Posted by sylvan butler on January 28, 2008, 4:19 pm
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> No. DVI won't carry sound. You'd need a video card that has an audio input
> connector on it and an HDMI output port. The video card would then combine
> the audio with the video and send it along together over HDMI.

Seems there should be a dvi+dig-audio to hdmi cable... And the reverse
as well (of course it wouldn't support hdcp, oh well).

sdb

--
What's seen on your screen? http://PcScreenWatch.com
sdbuse1 on mailhost bigfoot.com

Posted by Bill Kearney on January 29, 2008, 5:03 pm
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> Seems there should be a dvi+dig-audio to hdmi cable... And the reverse
> as well (of course it wouldn't support hdcp, oh well).

There are video adapters, but I've yet to see anything that breaks out the
audio too. Probably because of the handshaking issues. That and you'd then
need to convert the digital audio signal into one of the other forms. I
don't know that the raw bits can be converted with just simple electronics.
But HDMI audio is pretty poorly supported on computer systems. I've yet to
come across much that can fully utilitize what can be sent over the HDMI
link. Most of the time it's the same data as would be sent over SPDIF.



Posted by Robert Green on March 24, 2008, 10:02 am
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> > Seems there should be a dvi+dig-audio to hdmi cable... And the reverse
> > as well (of course it wouldn't support hdcp, oh well).
>
> There are video adapters, but I've yet to see anything that breaks out the
> audio too. Probably because of the handshaking issues. That and you'd
then
> need to convert the digital audio signal into one of the other forms. I
> don't know that the raw bits can be converted with just simple
electronics.
> But HDMI audio is pretty poorly supported on computer systems. I've yet
to
> come across much that can fully utilitize what can be sent over the HDMI
> link. Most of the time it's the same data as would be sent over SPDIF.

Take a look at:

Asus M2A-VM HDMI: AM2 mATX motherboard

"Displays can be connected via HDCP-compliant HDMI, DVI, VGA, component,
S-Video, and even composite out. The 690G chipset also supports a
less-publicized feature known as SurroundView, which allows the Radeon X1250
graphics chip to not only provide dual simultaneous displays, but also to
operate in tandem with a dedicated video card to provide four displays at
once."

http://www.silentpcreview.com/article778-page1.html

Asus also has a number of other HDMI enabled motherboards that have recently
appeared on the market with many more features such as the P5E-VM HDMI:

http://www.silentpcreview.com/article785-page5.html

I will probably be getting one or the other when I bite the bullet and build
a Vista-capable machine.

--
Bobby G.




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pc to lcd TV connectivity January 17, 2008, 10:16 am