I have a s-video capable DVD player to test with and can alternately switch 
between Y/C ancd CVBS by decoupling the cables. Y/C looks much better.
Using the other cable 9-pin to s-video/composite/L/R and using the s-video the 
television reports Y/C (using -l 2) but the picture is horrible. For example 
characters within mythtv are not smooth. With composite the picture is as usual.

Also this cable behaves the same with ivtvctl
0 (comp+s-video) television finds CVBS
1 (comp) television is black
2 (s-video) television finds CVBS but picture is horrible

As testing continues I more and more get convinced that the problem is buried 
within the ivtv driver. Especially the -l 1 I can not explain.

I hope one of the developers could have a look into it. 

Pascal


> Hello Jacques
>
>>> Definitely the supplied 9-pin to scart only supports Composite.
>> Very strange, I'm using it and it's working fine.
>
>> From my previous post
> Changing with ivtvctl -l:
> 0 (comp+s-video) television finds CVBS
0K

> 1 (comp) television is black
0K

> 2 (s-video) television finds CVBS
0K

> Does your TV-set report it uses s-video explicitly. As far as my  
> investigations go it reports CVBS (Composite).
Sorry my TV-set report nothing ...
I just see some change in the picture when I change the output mode ...

I have another input on my TV-set, this input is RGB.
TV is black with all the values above but the picture is red with  
ivtvctl -l 3.

On my S-Video input, I can put an analog VCR which can switch from  
CVBS to Y/C output.
I have the same thing as my PVR with "ivtvctl -l 1"/"ivtvctl -l 2".

Have you another Y/C output to test your TV ?

-- 
Jacques Facquet


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