PC crashing when turning off display.

[vegeta535]

So ever since I added my LG CX to my setup my pc crashes when I turn off ether the TV or my Samsung g7 monitor. It doesn't crash of I turn one off while the other is on but when only one is on and I turn it off it will crash my system. Never experienced this. The only thing I changed was using a 10' display cable from my G7 and using a 6' hdmi cable to the OLED. I did a clean reinstall of the drivers but the issue still persists. It does not crash if I just let the monitor turn off itself after the PC been idle for a bit.

 

[Mizzer]

Switch out cables and report back.

 

[pippenainteasy]

Wonder if that displayport cable has a active 20 pin that's looping power back to your pc.

 

[vegeta535]

I guess I had a loose cable. I rechecked all connections and it doesn't crash anymore.
::Shrugs::