Jetson TX2 HDMI display not working

I have a Jetson TX2 with Jetpack 3.1. The display stopped working, there is no output to the screen. How can I troubleshoot the issue. xrandr gives a ‘cant open display’ message.


If you have access via ssh or serial console you won’t have any problems debugging…but you do need access of some sort.

When you get access I’d start by seeing if all is ok from (especially

sha1sum -c /etc/nv_tegra_release

Did you export “DISPLAY=:0” to xserver?