I recently upgraded my GPU to a 2080ti, to find when im playing minecraft with optifine and either forge or fabric, I will eventually have both my monitors blank out. I still have sound, the game still plays for a bit sometimes but the system will eventually crash. Sometimes it does this instantly when selecting a shader, sometimes I can play for 2 hours or more before it happens. It can also crash the system completely, and when on my local server I lose my character data and spawn back at spawn as a new character with no saved data. Bit of a downer really, having come from a fantastic old Maxwell TItan X card with no issues to this suddenly happening with the new card being installed.
Is there any known issues anyone has had with similar issues? I've googled everything I can find, but no one seems to have their monitors just blank out and turn off. I use one monitor for gaming, the second for videos/music/browsing when in certain games, so nothing is run in multple display mode. Normally im pretty good at problem solving having been through all sorts of rigs and tweaking games and what not over the years, but this one is proving strange to work out.
I've tried every possible fix I can find, from using DDU to remove drivers and re-install, run verification commands and fixed through the powershell, tested the hardware with multimeter and testers, tried various versions of java, nothing seems to make any sense.
Any suggestions are welcome at this point, I can play fine without shaders but after spending all this money on a new card it seems kind of daft.