What cable do I need for a Raspberry Pi 4 or 5, and do I have to modify the config.txt file?

Raspberry Pi 4 and 5 require a Micro HDMI to standard HDMI cable. (Raspberry Pi Zero series boards require a Mini HDMI adapter/cable.) The display works as a plug-and-play monitor, and you do not need to edit the /boot/config.txt file for basic output. The system will typically recognize the 2400×1080 resolution automatically.