NTSC TV-out displays incorrectly

[Carsten Haitzler (The Rasterman)]

On Sat, 03 Dec 2005 21:20:20 -0500 "Charles Walter" <charlie.walter at mail.com>
babbled:

> Dear XOrg,
> 
> I really need a hand.  I've been working for weeks to get my tv-out to work
> correctly and I've run out of options.  The Linux TV image is very unstable
> in both terminal-size and full screen (DVD). The image 'rolls' about a third
> of the way down the screen so there's a 3 inch black horizontal line on the
> screen and the bottom of the image is on the top of the screen.  It will
> occasionally roll back to normal and then it goes awry again.  It seems worse
> in full screen. Once in a while, the whole screen will 'flail' around so I
> can't even locate the mouse.  Opening a terminal window usually stabilizes
> the image.
> 
> I'm running Mandriva 2006 with the latest nVidia driver.  I've attached my
> xorg.conf and my Xorg.0.log (verbose).  
> 
> Here's a brief history of what I've tried...
> 
> I originally used a minimum of options when configuring xorg.conf:
>       Option "TVStandard" "NTSC-M" 
>       Option "ConnectedMonitor" "TV"
>       Option "TVOutFormat" "COMPOSITE"
> I figured the NTSC designation should be sufficient to properly specify the
> TV output (sync, refresh, etc.) because it's built into the ntsc standard.
> Unfortunately, the default specs xorg generated were really for a monitor (30
> KHZ horz sync), not a TV.  The TV image was unstable and jumpy and rolled
> down the screen.  Plus the maximum detected virtual screen 640x480 which was
> almost unusable for many Linux apps.
> 
> So I did some research and manually set all the proper NTSC settings in the
> xorg.conf. The logfile now looks perfect based on the NTSC spec.  The TV
> image still looks about the same... it 'rolls' about a third of the way down
> the screen.  It will occasionally roll back to normal and then it goes awry
> again.  It's worse in full screen DVD.
> 
> Can you please help me out?  I'm quite new at this kind of thing so I may
> have made some foolish errors.  I contacted the nvidia support group but no
> one has responded to my post.

you should be contacting nVidia as they are the authors of the driver software
that handles all this setup. (assuming what you said is correct  i.e. you are
using nvidia's closed drivers)

-- 
------------- Codito, ergo sum - "I code, therefore I am" --------------
The Rasterman (Carsten Haitzler)    raster at rasterman.com
裸好多
Tokyo, Japan (東京 日本)