DMTech TV doesn't support HDMI

Skaws

Prominent
Apr 9, 2017
2
0
510
Everytime I connect my pc to my TV via HDMI my pc's screen goes black and my TV says "Not Support". I've had this exact setup for about a year and a half and I've never had this problem with it before.
This is so far everything I've tried:
-cycling through the settings with win+p
-updating my drivers
-tried diffrent cables and diffrent outputs
-searching for a device then plugged in the cable
-restarting everything with the correct settings
My Pc is an HP Pavilion 15 Notebook PC. It works fine with my sisters old Enox TV, so I'm pretty sure the problem is with my TV.
All and any suggestions are very welcome.