I need to boot my Pi4 to boot with AND without a HDMI cable plugged in. In order to boot without a monitor connected to the Pi, I've added
config.txt. Now the Pi boots without a monitor but as soon as I plug in the monitor again, nothing appears on it. The Pi boots, but seems not to display anything on the monitor. Is this normal behavior when adding the line, stated above?
Any ideas how to solve this?