problem displaying rmfcd su27 on second monitor

recently i had a HD 1920x1080 monitor with a second 800x600 monitor diplaying the rightmultifunctiondisplay in the Su27 working.

Now i switched to a 4k 3840x2160 monitor with the same 800x600 secondmonitor.

The problem is that i get a small DCS startingscreen as seen in the screenshots and nothing displayed on my second monitor.

any thoughts what to do?

Would be much appreciated.

1080p is only 1/4th of 2160p. In your picture it looks like your horizontal resolution is set to 4640 but your monitor is only 3840. Is this how it worked before with your second monitor only adding 800 horizontal resolution?

maybe this solve in a file in DCS_open_beta\Config\MonitorSetup\:

_  = function(p) return p; end;
name = _('Camera + RMFCD user2');
Description = 'Right MFCD on the right and camera on the left'
Viewports =
{
    Center =
    {
         x = 0;
         y = 0;
         width  = 3840;
         height = screen.height;
         viewDx = 0;
         viewDy = 0;
         aspect = 1.777777777777778;
    }
}

RIGHT_MFCD =
{
    x = 3840;
    y = 0;
    width = 800;
    height = 600;
}

UIMainView = Viewports.Center

1080p is only 1/4th of 2160p. In your picture it looks like your horizontal resolution is set to 4640 but your monitor is only 3840. Is this how it worked before with your second monitor only adding 800 horizontal resolution?

Yes that is as it worked before

maybe this solve in a file in DCS_open_beta\Config\MonitorSetup\:

_  = function(p) return p; end;
name = _('Camera + RMFCD user2');
Description = 'Right MFCD on the right and camera on the left'
Viewports =
{
    Center =
    {
         x = 0;
         y = 0;
         width  = 3840;
         height = screen.height;
         viewDx = 0;
         viewDy = 0;
         aspect = 1.777777777777778;
    }
}

RIGHT_MFCD =
{
    x = 3840;
    y = 0;
    width = 800;
    height = 600;
}

UIMainView = Viewports.Center

Thanks that did the trick, didn't remember to change the script:)