[mythtv-users] Tv Overlay with Nvidia and Sony HDTV

Jarod Wilson jcw at wilsonet.com
Thu Oct 7 22:16:10 UTC 2004

On Thursday 07 October 2004 14:01, Cory Tucker wrote:
> Jarod Wilson wrote:
> >On Thursday 07 October 2004 11:30, Cory Tucker wrote:
> >>I have an Nvidia GeForce4 4400 using DVI out to my Sony 57" HDTV.  I've
> >>tried many different modelines from Jarod's guide, and a couple other
> >>sources, but I just can't get it to not overfill the screen.  I'm using
> >>the latest nvidia drivers (6111).
> >
> >Have you looked at how I'm doing this in my HD xorg.conf file? (I just
> > updated the version posted on my site in the last few weeks). Basically,
> > there isn't any easy way to not overscan, so you have to run a lower
> > resolution inside the timings for an actual HD resolution. For example,
> > I'm now using xrandr with an 880x480 mode inside 540p timings for the GUI
> > and a 1760x960 mode inside 1080i timings for HDTV playback.
> I'm using the "in540p" mode from your file.  That brings it the closest,
> but it still crops the picture on all sides.  I have tried modifying
> that modeline somewhat, but I wasn't really able to get it to change at
> all.  This 880x480 mode you have fits perfectly on your screen?

Yeah, that 880x480 mode fits pretty much perfectly. But I have a 47" Panasonic 
and different cabling than you, so I certainly wouldn't expect it to work 
perfectly for your TV. A while back, I found a great web site where you can 
import a modeline and then click some buttons to adjust it and have a 
resulting modeline spit out, but I can't recall where it is right now (and a 
quick google is failing me). I've got it bookmarked at home though...

Oh yeah, if that mode is pretty close, you might just try firing up xvidtune 
and see if you can use that to coax out a better modeline.

Jarod C. Wilson, RHCE
jcw at wilsonet.com

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