@jacadcaps
Thank you for your suggestion.
i tried ModePro 4.67
the installation crashes (fails)
i tried it manually but it doesn't work (asl.libray morphos) is present.

Too bad to encounter this problem I tried dvi-hdmi dvi-vga the problem is always the same.

It would be nice to create a program which opens the RTG screens in case of need like in this case.
But probably if it hasn't been done there will be a reason

[ Edited by white 13.08.2021 - 17:21 ]