[mythtv-users] DVI to Component?

[allene222]

The DVI spec supports both digital or analog or both outputs.  These are
called DVI-D, DVI-A, and DVI-I.  The analog pins are just the 5 standard VGA
outputs (R,G,B,HSync, VSync).  I think it would be an unusual card that
supported sync on green as this is not within the DVI spec.

Converting VGA to Component looks like an expensive proposition.  Cheaper to
buy a new video card that has the outputs you want.

Allen


James Orr wrote:
> 
> On Sun, Mar 30, 2008 at 1:20 PM, Brian Phillips <brian.phillips at gmx.net>
> wrote:
> 
>> steve wrote:
>>
>> > the best cable to get is dvi to dvi.  anytime you use a converter
>> > cable you are subject to signal loss/downgrade.  although, your only
>> > taking 1 performance step down to component. svideo can only carry
>> > 480, id switch to dvi->component.
>>
>> It seems to me the cable he linked to required that he have a DVI-I port,
>> which means what's coming out of the DVI is component (analog).  Cables
>> do
>> not subject you to the type of loss you are referring to (conversion
>> loss).
>> The most the cables he linked to would do would be the same type of loss
>> available in any analog cable.
>>
>> As long as your 7300 has a DVI-I port and not just a DVI-D port, your
>> DVI-Component cables would connect your computer to a display without any
>> "conversion loss" as the analog signal is coming out of your video card
>> and
>> not being created by the cables.
>>
>>
>> However, what you linked to has this caveat.  From the webpage:
>> http://sewelldirect.com/DVI-to-Component-Adapter-Cable-6ft.asp
>> "These cables are not compatible with PC or Mac video card outputs unless
>> specifically stated in your video card. They also do not support Y, Cr,
>> Cb
>> signals. If you're looking for a way to use your computer video output
>> with
>> your HDTV display, check out our VGA to HDTV Converter."
>>
>> So it doesn't look like it will hook up to your TV.
>>
> 
> Yeah, looks like these cables need sync-on-green which apparently nvidia
> cards do not provide.  So that's a no-go.
> 
> The pickings get mighty slim when you're looking for an nvidia card that
> (in
> order of priority) fits in a low profile case, has component output, is
> fanless and supports XvMC.
> 
> I may give up on the last two items and try this one ...
> http://www.newegg.com/product/product.aspx?item=N82E16814139018
> 
> The XvMC isn't necessary for me at the moment, I'd prefer not to use it at
> all, but I thought when I upgraded to HD I could use it on the frontend
> until I beefed up the CPU there.
> 
> _______________________________________________
> mythtv-users mailing list
> mythtv-users at mythtv.org
> http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
> 
> 

-- 
View this message in context: http://www.nabble.com/DVI-to-Component--tp16384098s15552p16386000.html
Sent from the mythtv-users mailing list archive at Nabble.com.