[mythtv-users] Converting VGA (1024x768@60Hz) to component

[Chris Ribe]

The component inputs on most HDTV monitors use the YPrPb color space, which
is different than the RGB colorspace used by a D-sub (VGA) in/output. The
electrical conversion between the two colorspaces can be done using analog
circuitry, but it isn't something as simple as cutting open a cable and
soldering on new connectors.

On 11/12/05, Steve Adeff <adeffs at gmail.com> wrote:
>
> On Friday 11 November 2005 00:10, Devan Lippman wrote:
> > On 11/10/05, MythTV <mythtv at pearsall.us> wrote:
> > > Does anyone have experience with any of the nVidia component-out cards
> > > they
> > > can share? If they work, nVidia component-out cards are cheaper than
> the
> > > VGA to component converters.
> > >
> > > Thanks,
> > > Todd
> > >
> > > -----Original Message-----
> > > From: mythtv-users-bounces at mythtv.org
> > > [mailto:mythtv-users-bounces at mythtv.org] On Behalf Of Kirby Bakken
> > > Sent: Wednesday, November 09, 2005 11:05 PM
> > > To: Discussion about mythtv
> > > Subject: Re: [mythtv-users] Converting VGA (1024x768 at 60Hz) to
> component
> > >
> > > Stephen Hocking wrote:
> > > >Hi all,
> > > >
> > > >I have an InFocus X1 projector, which in addition to handling HDTV &
> TV
> > > >formats also does VGA, up to 1024x768. Now when switching from an
> > > >ordinary video source (connected via S-Video) via the home theatre
> amp
> > > >to the computer, one has to switch both the amp & the projector over
> to
> > > >the new source. I'm currently considering the various home theatre
> amps
> > > >that upconvert all video sources to component video. I'm thinking of
> > > >connecting the PC's video via the amp in this case, and wondered if
> > > >anyone had experiences with VGA->component cable convertors (I've not
> > > >been able to track down a local vendor with a component-out Nvidia
> > > >card). Any ideas?
> > > >
> > > >
> > > > Stephen
> > > >_______________________________________________
> > > >mythtv-users mailing list
> > > >mythtv-users at mythtv.org
> > > >http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
> > >
> > > I just bought a 'VGA LEADTEK GF PX6200 TC-64-H RT - Retail
> > > <http://www.newegg.com/product/product.asp?item=N82E16814122226>' card
> > > from
> > > Newegg that has component video out (via a 'pigtail' adapapter). It
> also
> > > has
> > > vga and dvi out... I haven't tried it yet... but my plans are to run
> it
> > > through my Yamaha receiver that 'switches' component 3 video inputs to
> > > component out, and upconverts the rest to component....
> >
> > You can tap into the RGB on your vga cable to make a component video
> cable
> > (or buy one premade) and it will provide a progressive scan image. I was
> > reading about this a while back somewhere on avsforums I think.
> >
> > --
> > Thanks,
> > Devan Lippman <devan at lippman dot net>
>
> that requires a little more work as normal VGA is 5 seperate signals, but
> it
> is possible, as its what the VGA->HDTV converters basically do.
>
> I too am interested in knowing if anyone has had luck with the HDTV output
> capable cards and how the work? Its looking like my TV doesn't like 1080i
> from a regular DVI output on video cards and using a HDTV chip with 1080i
> via
> component cables may be the way I need to go.
>
> Steve
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>
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