The new Pi 4 has two HDMI Ports. After booting Raspbian, the first screen (HDMI-0) should display the console and the second screen (HDMI-1) should display the X11 desktop.
My first thought was editing good old xorg.conf but newer debians don't have this file. Do I need to change config.txt?
Not sure how to start... Thx for your help.