[Openchrome-users] VGA to RGB Scart

[John Robinson]

On 16/09/2008 10:57, Paul Gardiner wrote:
> Ivor Hewitt wrote:
>> It's not possible to get an interlaced signal from the VGA port unfortunately. So a VGA-SCART convertor won't work I'm afraid.
> 
> Shame, but thanks for the info. Best knowing that before
> building the circuit.
> 
> My TV can handle progressive 100Hz, I think. Could that
> be a route forward? Or am I going lose more than I gain
> in terms of quality?

If your TV can handle a progressive signal at 50Hz, and claims to be 
able to do it over the SCART connector, by all means give it a go; when 
openChrome is set to 720x576 and TV output, the VGA output produces 
720x576 progressive at 50Hz (which my old CRT monitor was perfectly 
happy with, and my lovely new 24" TFT monitor thinks is 720x480 and 
crops). And the picture should be as good as you can get on a CRT monitor.

But beware! Do this at your own risk, etc; write your monitor definition 
in your xorg.conf corresponding to your TV's specs for horizsync and 
vertrefresh, and don't blame me if you accidentally create a black hole 
which consumes the world, or whatever...

Cheers,

John.