I had two issues during mining.
First was yesterday. I was running mining all day while i was at work. In the evening i started playing computer games and shortly after my graphics card seemed to crap out for a minute. My screen first froze, then went black, before returning to normal. I'm assuming the mining process stopped somewhere in there on its own. I left mining on the rest of the night.
When i woke up this morning, i tried moving my mouse and clicking keys on the keyboard to wake up my screen. There was no response, screen kept saying no input. I had to hard reboot my computer.
NVIDIA GeForce RTX 2070 Super
All drivers up to date.