Did you ever get and answer to your question on VGA to RGB (Y,Pr,Pb) video signal output function to work.
I trust you have.
I am trying to do same.
I gather for the image to display properly you need to check you VGA card for support.
From there I am not sure where to go.
Thanks in advance for getting back to me.
Not directly; apparently my card didn't support VGA to component.
However, I did pick up a docking station for my notebook and just ran DVI to HDMI to get around the issue.