Help with black pearl monitor

I have a black pearl monitor with 2 sony camera’s When I hook it up to the a5100 the bp monitor shows the same thing the camera is seeing. When I hook it up to the RX100 it cuts off the top of the view. Is there a way to calibrate the monitor to make it slide the view down, or something I am doing wrong?

I dont know much about the RX100 as I dont own one, however are there any option to change the HDMI output scale, aspect ratio or resolution on the camera menu? There is not an option to adjust the picture size on the black pearl monitor itself.