FIXED,
I had to adjust both HDMI ports…to the new orientation.
Sorry, simple mistake…

System: updated pi4

Hi, I am starting my 2nd MM. This time I want it to be portrait oriented.
Through the UI I changed the orientation.

But the screen still has the previous resolution.
So I cannot ‘see’ the whole MM content. It dissapears on the right.

How can I change the resolution so it is 1080-1920?

Thanks