I did a clean install of KnoppMyth R5C7.

It basically worked fine with a TV connected.

Then I did some administration (nvram-wakeup) and therefore I connected a CRT monitor instead of the TV.

Now I switched back to the TV and now the X session has no colour anymore but shows only grayscale (desktop and other programs like Mythtv).

But during booting with TV connected it starts in colour and stays in colour until X starts and when I shut down the splash screen ("welcome to knoppmyth") colour cames back again.

This only happens on the TV screen.
When I connet a CRT monitor parallel with the TV the CRT monitor shows X (and everything else) in colour but the TV has only grayscale in X.

Has anybody an idea, what has gone wrong here??

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KnoppMyth R5F27
VIA Epia ME6000
TechniSat AirStar 2 TV (DVB-t)

Due to no response to my toppic so far, I decided to crosspost this issue here

@admin: feel free to delete this topic here now....

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KnoppMyth R5F27
VIA Epia ME6000
TechniSat AirStar 2 TV (DVB-t)

how is your TV connected to the PC? are you using an S-video cable? Are you then converting the S-Video to composite?

What is the TVOutFormat in your XF86Config-4? If you have a S-Vidoe to composite converter, try setting TVOutputFormat to COMPOSITE

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R5F1 - Dell P4 2.4Ghz 500MB - PVR250 x 2 - GeForce FX 5200 - Onboard sound/NIC 80GB ATA/250GB ATA/400GB SATA

Thanks, that helped:

I put those lines in

/etc/X11/XF86Config-4


and then nice bright colour was back agein

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KnoppMyth R5F27
VIA Epia ME6000
TechniSat AirStar 2 TV (DVB-t)