After connecting the DP and starting the system for the first time, no display was showing on the screen (DP-DP connector). I followed then the headless setup by connecting the Jetson to another computer via USB, and followed the suggestion from another post to use
sudo picocom -b 115200 /dev/ttyACM0
After setting up Ubuntu, I was then able to ssh to the Jetson over the network, and finished up the installation of JetPack which is currently on version 5.0.1-b118.
Nevertheless I am unable to have the display working, even after rebooting several times. I would kindly appreciate any help here.