Connect to a host machine with usb c or micro B and turn on jetson, from host machine run lsusb and check if Jetson is listing as Nvidia. Further debugging steps has been answered from nvidia team in earlier forums
MY SOLUTION: Under Boot Maintenance Manager – increase the Auto Boot Timeout from 5 sec to 20sec
In my case it did helped. I have verified this with two Agx Orin devices. Though currently i dont have a better reasoning about this. A time period of 20 sec is suffice for jetson to load ubuntu i guess. If someone has better idea on this , please do share
I foundthat removing and connecting the display cable 1 or 2 or sometime 3 times works most of times , and I think changing auto boot time has no role.