One of my monitors keeps black screening

[EliLouie13]

For a little context, I have a samsung g7 odessey monitor. Im running a two monitor setup and for some reason seamingly out of no where my main monitor just started shutting off. When I unplug and plug it back in it will take like 2-3 minutes to boot then work perfectly fine for around 10-15 minutes before shutting off again. Samsung support has no idea what is happening to it. I have aslo tried updating my drivers, swapping both display and hdmi cables in. I tested my gpu. and I swapped the power cord(it didnt work at all when I did this so I swapped it back). I think my monitor is cursed please help. My pc also recognizes there is still a monitor plugged in and will keep my other screen extended from my main.