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[directfb-users] Re: Matrox G450 TV Out - Black and white picture?
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[directfb-users] Re: Matrox G450 TV Out - Black and white picture?



I have both a g400 and a g450, and if I use the g450's tvout cable with
the g400, I get black and white only, so make sure you have the correct
cable.

-p


On Tue, 4 Nov 2003, Michael Hunold wrote:

> Date: Tue, 04 Nov 2003 10:03:49 +0100
> From: Michael Hunold <hunold@convergence.de>
> To: J-F Maion <p0203@maion.com>
> Cc: directfb-users@directfb.org
> Subject: [directfb-users] Re: Matrox G450 TV Out - Black and white
>     picture?
>
> Hello J-F,
>
> > I have a Matrox G450 on a kernel 2.4.21. I have installed DirectFB
> > according to Ville Syrjälä's Howto and I got mplayer working (with the
> > nospic option) but I get only black and white output.
> >
> > Same result with the alternative "/dev/fb" method.
> >
> > Any idea where that could come from?
>
> Check your cable and settings carefully.
>
> Most likely you're outputting a s-video signal, where y/c (y ==
> luminance, ie. black/white informations, c = chrominance, ie. color
> informations) are transmitted on two different wires, but your tv
> expects a composite signal (ie. where color and lumincance informations
> are mixed together).
>
> If you input the lumincance only to the composite input, you'll get a
> black/white picture.
>
> So either your cable is broken or tell your tv to use s-video for the
> input you've connected your card to, or use the composite plug of your
> cable.
>
> > Thanks in advance!
> > J-F
>
> If that does not help, exactly tell what settings you've chosen and what
> output from the card you plugged into which input of your tv.
>
> CU
> Michael.
>
>
>
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