[mythtv-users] Which is better: Mythtv via component or vga/dvi?

[ryan patterson]

On 4/11/07, Alex Malinovich <demonbane at the-love-shack.net> wrote:
>
> On Wed, 2007-04-11 at 14:31 -0400, Rich West wrote:
> > I know asking a "which is better" question is usually asking for
> > trouble, but I am really just looking for opinions.  The reason I am
> > asking is because I have a limited number of component inputs on my new
> > tv, and I have more pieces that have component-capable output than I
> > have inputs on the tv.
> >
> > Currently, I have my mythtv box connected via component video, and the
> > picture is beautiful.  The set supports VGA input, and, as can be seen
> > from a previous thread, I'm still tinkering to get the picture via that
> > medium to play nicely. My other set is also connected via VGA, and it
> > wasn't until today that I finally narrowed down the problem with my
> > configuration: incorrect modeline setting (of course, I have to test
> > this, but I believe it is the problem).
> >
> > However, that got me thinking: is component video any better or worse
> > than pumping the video over VGA?  Does one buy you anything that the
> > other does not?  Or am I basically comparing apples to apples?
>
> That all depends on how your TV handles VGA. I have a 52" Panasonic that
> does VGA input, but it only supports standard VGA resolutions (not
> widescreen) and only goes up to 800x600 accurately. It'll do 1024x768
> but you begin to see some artifacts. So in that type of setup, I'd
> definitely stick with the component.
>
> If you have a relatively new video card and TV you should also consider
> doing a DVI connection between the two. I'm using my DVI out on my Myth
> box to connect (via an adapter) to the HDMI input on the TV and the
> picture is gorgeous.
>
> --
> Alex Malinovich


In terms of quality component and VGA are basically identical.  VGA is RGB
color channels plus horizontal and vertical sync channels.  Component video
provides the same RGB information just it uses different channel
definitions.  Component channels are luminance ( Y = R+G+B ) and part-Red,
part-Blue channels ( Pr = R - Y, Pb = B - Y ).  Six of one half a dozen of
another.

The real factor that might make a difference is how your TV/monitor handles
VGA or component video.  Like my TV has a whole bunch of extra display
settings for VGA input that the component inputs don't have (not that I have
ever used those settings).

DVI or HDMI

-- 
_____________
Ryan Patterson
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