On Thu, Feb 10, 2005 at 06:51:03PM -0600, Nathan Poznick wrote:
> Thus spake Cory Papenfuss:
> > ...convert this into an X modeline, if that's what the TV reported it
> > could do. In otherwords,
> >
> > Modeline mysooperdoopermode 74.2 1920 2008 2052 2200 540 542 547 562
> >
> > That's a "540p" mode. For 1080i, you should be able to make it by
> > modifying it to a double-height version of the same thing:
> >
> > Modeline my1080i 74.2 1920 2008 2052 2200 1080 1082 1087 1102 interlace
> >
> > Same frequencies, just interlaced, so 2x as many vertical lines.
>
> Alas, those produce the same effect I had seen before. I went ahead and
> tried a several 540p and 1080i modes I found floating around, but they
> all resulted in the same thing. Here's a picture which will hopefully
> illustrate what the problem is:
>
> http://drunkmonkey.org/icky.jpg
>
> By disabling EDID I was able to get X to start up in a 1080i resolution,
> but it has the same effect as 540p (or even anything beyond a 640x480 or
> 720x480).
>
> Any suggestions on how I can fine-tune to make things work properly?
As far as we know, you can't. I've been railing about this problem on
the nvnews message board for months, and sent in a bug report to nvidia,
no response. You could do the same. As far as we know here, nobody has
gotten 1080i to work over DVI with the Nvidia drivers, we all get the
double-vision problem.
I am not sure why it shows up trying to do 540p on some TVs, I presume
they are trying to make it interlaced.
If you find a resolution, many people would be happy to hear it.
For now:
a) Run at 720p -- I would be surprised if your TV wasn't actually
native 720p, almost all the DLP/LCD/projection ones sold today are.
b) Drive analog, with an audio authority converter, or a TV that
can take RGB component (some can) or VGA.
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