[mythtv-users] optimizing nvidia tv-out for widescreen rear projection tv connected via s-video

Braindead Braindead at diablops.com
Fri May 18 20:35:07 UTC 2007


On Fri, 18 May 2007 16:16:35 -0400
Rich West <Rich.West at wesmo.com> wrote:

> Braindead wrote:
> > On Fri, 18 May 2007 17:29:25 +0100
> > "James Buckley" <xanium4332 at googlemail.com> wrote:
> >
> >   
> >> On 18/05/07, Daniel Agar <daniel at agar.ca> wrote:
> >>     
> >>>> now that I've been using Myth for a while... starting to wonder
> >>>> if I can get better picture quality, not that it's bad... seems
> >>>> pretty darned
> >>>>         
> >>> nice
> >>>       
> >>>> really.. but one just never knows.
> >>>>         
> > <snip>
> >   
> >>> This probably isn't the suggestion your looking for, but you might
> >>> consider swaping that FX 5200 for one that has dvi on it. I was
> >>> using an s-video connection on my 37" lcd and the quality
> >>> difference when I switched to dvi was incredible, completely worth
> >>> the $40 spent on the card.
> >>>
> >>> Other than that I don't see any main changes you could make with
> >>> your xorg.conf, its about the same as the config I use on another
> >>> SD frontend. You might consider adjusting the overscan with the
> >>> nvidia-settings tool which will adjust in real time.
> >>>       
> >>
> >> I second this, DVI/HDMI gives awsome pictures, and in some
> >> circumstances allows one-to-one pixel mapping.
> >>     
> >
> > Thanks, that's pretty much what I thought.. But I wanted to make
> > sure I wasn't running a really off xorg.conf or something like
> > that.  One of these days I'll upgrade my BE/FE box.. I've only got
> > one input (PVR-150) at this point..  I have a feeling that
> > eventually the evil cable companies will force me to have a cable
> > box (none yet), which will mean some re-thinking my setup... IR
> > blaster... or what have you.  I'll simply have to upgrade at that
> > point ;-)
> 
> 
> Check out http://www.mythtv.org/wiki/index.php/ComponentOut for come 
> good Component Out tips.
> 
> If your TV works properly with DVI, try that.  Although, most TV's
> treat DVI as a "pc connection" which, for some vendors or TV types,
> doesn't work out as well.  Also, be aware that some TV's don't do DVI
> correctly (a co-worker's 1yr old projection has a DVI port, but isn't
> supported to be hooked up to a PC).
> 
> Component out is as good as HDMI, except for the fact that there is 
> digital->analog conversion in there (and theoretically there could be 
> some loss involved) while HDMI is all digital to the TV (less subject
> to interference along the wire).  However, Component Out doesn't have
> the possibility of any DRM (which HDMI might).

I believe my TV doesn't support PC connections (last I checked the manual), but it's got plenty of component out... I'll probably go that route when it comes down to it..


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