I am having an issue with the RS232 port. It works on first boot, but if I leave a terminal open and do not input any commands for too long it will sometimes become unresponsive. The Jetson is still running properly, I can access it via SSH over Ethernet and via HDMI/keyboard/mouse. And it seems that the getty process is still running on /dev/ttyS0.
I suspected my USB-serial cable so I swapped it out for two different kinds (Prolific and FTDI). It seemed to resolve the problem at first, but the symptom has returned after a day or two. A reboot will produce terminal text but I will be unable to issue keystrokes. A hard power off followed by a short wait is the only thing that resolves the problem.
I’m just curious if anyone else has experienced this problem, if it is reproducible, etc. And of course any suggestions/fixes welcome :)