Dual video out resolutions?

[SSThing]

My Q10pro is connected to my TV via my home cinema amplifier using hdmi. All working as it should.
I have also made a connection direct to the TV using the yellow video rca (so that I don't have to keep turning on the amp to check things). I am not worried about the reduced quality and lack of audio but I cannot get the resolution correct and I am losing about 10% of the screen. I have tried all the TV settings but nothing works. If I adjust the screen area from within the q10pro menu, it then displays incorrectly when I try to use the hdmi output.
Is there any hidden options where I can set the outputs individually for rca and hdmi?

Thank you.

[SSThing]

Anyone?

[SSThing]

?

[futeko.com]

You can't control HDMI out and AV out independently if you're using both.

AV out will display an approximation of the HDMI output when HDMI is enabled.

If you are only using AV out then screen scale can be adjusted for AV out.

[SSThing]

OK thank you.