And so, it ends. I think. I connected to my old desktop PC remotely to run Mint updates. Since it included a kernel update, I had to reboot the system. But the system never came back up. It powers on, then that is it. Nothing come on the screen once power is turned on, monitor does not even detect that there is a PC there sending it anything to display. I did let it run a bit in case it was a display cable issue and it would still boot up headless. I will try a live USB but I am not hopeful.