I’ve been working with an embedded system with TX2 and facing some issues. I had to upgrade from Ubuntu 16.04 to 18.04 and hence flashed an updated JetPack 4.6.2 - L4T r32.7.2 package.
I was successfully able to flash the OS and do my work until a weird issue occurs. Please have a look at the attachment of the screencast and notice the top right of the screen, which seems to indicate the sound being turned up although no key is pressed. The screen freezes partially hereon, such that I cannot type anything on the terminal or use the task bar.
Only option is to force restart/shutdown. Once I force restart it, there is nothing displayed on the monitor, although the PC seems to power on (Based on LED light present on the power button).