2019 GeoPro 19FBS Furrion HDMI no signal

[PHISHN2]

Recently purchased a 2019 GeoPro 19FBS that came with a factory 22-inch Furrion TV. I powered it up and connected my laptop to the HDMI port. Everything worked fine for about 5 minutes. Then the TV screen just started showing a "No Signal" box. I have tried everything I can think of, messing with the Menu > Setup > HDMI settings, attaching a Chromecast, a Fire TV stick and a Roku stick, and nothing works. The devices work fine, mind you, the TV just does not recognize anything connected to the HDMI port. Yes, I have read that these Furrion TV's are junk, and yes I am eventually going to replace it, I was just hoping someone had run into the same problem and accidentally discovered a fix. I have also tried connecting my HDMI devices to the radio's HDMI port and connecting the HDMI cable from the radio to the TV and that doesn't work, either.

Thank you!