[Bug 19491] New: S-video & composite output

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ@public.gmane.org]

http://bugs.freedesktop.org/show_bug.cgi?id=19491

           Summary: S-video & composite output
           Product: xorg
           Version: 7.4
          Platform: Other
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/nouveau
        AssignedTo: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
        ReportedBy: monnier-CRDzTM1onBSWkKpYnGOUKg@public.gmane.org
         QAContact: xorg-team-go0+a7rfsptAfugRpC6u6w@public.gmane.org


I finally got nouveau (from git) working on my PowerBook G4 12" (running Debian
testing with unstable's X server).
Now, my next step is to get it to drive my TV.  I have it connected via
Apple's "mini-DVI to Video Adapter", which comes with both an S-video
and a composite output.

When I start X, `xrandr' tells me:

   % xrandr                                 
   Screen 0: minimum 320 x 200, current 1024 x 768, maximum 1360 x 1360
   LVDS-0 connected 1024x768+0+0 (normal left inverted right x axis y axis)
245mm x 184mm
      1024x768       60.0*+
      800x600        60.3  
      640x480        59.9  
   DVI-I-0 connected 1024x768+0+0 (normal left inverted right x axis y axis)
1mm x 257mm
      1360x768       59.8  
      1152x864       60.0  
      1024x768       60.0* 
      800x600        60.3  
      640x480        59.9  
      680x384       119.6    119.9  
      576x432       120.1  
      512x384       120.0  
      400x300       120.6  
      320x240       120.1  
   % 

so it appears that this video adapter is detected as a sort of DVI
screen.  And indeed, my TV (which is connected via the `composite'
output if it matters) does show something ;-), but not something
meaningful :-(.  If I try to switch to some other mode e.g. with

   xrandr --output DVI-I-0 --mode 640x480

the meaningless output changes, but stays mostly meaningless (sometimes
I can recognize some shapes, which indicate clearly that the "garbage" is
actually representing the screen, just probably not with the right
frequency/polarity/godknowswhat/...).

Does anybody have some idea if I can get it to work with the current
code, if so how, and if not, how I can help make it work?


        Stefan


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