[ltp] RE: svideo output on thinkpad z61e

[Bryan Moore]

On Mon, 11 Aug 2008 17:20:00 +0200
"Laurent Gilson" <pumpkin@gmx.de> wrote:

> Hi,
> 
> > i've tried changing/altering my xorg.conf and run xrandr until i was
> > blue in the face and still nothing.
> 
> - Remove all TV and dualhead related stuff from xorg.conf
> - restart X
> - run xrandr to the desktop resolution to 800x600 (xrandr --output
> LVDS --mode 800x600)
> - connect the TV
> - run "xrandr --addmode S-video 800x600" to nail the resolution to  
> something the
>    TV set can surly understand.

everything went fine until here... xrandr complains about no S-video
because it registers it as TV instead.

> - run "xrandr --auto" to detect the TV
> - run "xrandr --output TV --set TV_FORMAT PAL; xrandr --output TV
> --mode 800x600"
> 
> check output (should be B/W if you really
> have a NTSC-only TV set), then run:
> 
> - run "xrandr --output TV --set TV_FORMAT NTSC; xrandr --output TV
> --mode 800x600"

the TV_FORMAT set here needs to be either NTSC-M, NTSC-443, or NTSC-J;
xrandr --prop tells me this.
 
> (yes, always run both commands. Just running the --set command
> is not working). The intel driver (at least the versions i
> deal with) switches to S-Video style transmission after that.
> 
> >> You may run into a 2. problem: overlays (= a fast way to
> >> display videos) only works on the first head. switching to
> >> a slower way (like -vo x11 for mplayer) solves that.
> >
> > not sure i follow. if i'm trying to mirror the desktop, how would i
> > set this?
> 
> It depends on the driver. Recent drivers do this w/o problems
> automagicly, older need a bit help.

it's a relatively new thinkpad...

> > windows doesn't degrade my lcd to show-out on the tv... in fact,
> > the tv isn't even set at 800x600; windows sets it at 1024x768.
> 
> 1024x768 is the maximum the intel chip supports (and windows
> guesses about the TV. It will not check the maximum the TV
> supports and it will fail hard on older TV-sets).
> 
> Like i said: no 1920x1200 over svideo.
> 
> cu