[STEAM VERSION] RANDOM CRASHING, PC MONITOR DISCONNECTS AND COMPUTER LOCKS UP

[Gaiussenpai]

I've just got this problem today exactly and it's pissing me off. Like everything was working fine and now it just does not want to work.

[SymbioteYT]

Hmm... dx9 keeps running but dx11 crashes. I don't notice you having tried to reinstall DirectX in your attempted solutions. Perhaps this could be tried first before attempting the removal of one card?

Can confirm by this point that DX11 is the issue. However, searching around, I haven't been able to see a clear solution on how to reinstall DirectX 11. I'm currently running on Windows 10, which supposedly installs DirectX for you through updates? If I have this wrong or if there's an easy way to reinstall, that'd be cool to know. :-p

Pretty sure the DX11 client isn't in any of the SLI/CF profiles. At least on the AMD side, Crossfire hasn't worked properly for FFXIV in years. Wouldn't be surprised if the situation is similar for Nvidia cards. Try disabling SLI. I also know that the DX11 mode can be very buggy when running in Borderless Window, so maybe try real Fullscreen if you haven't already (though if that's the case, SLI will be disabled anyway since multi-GPU solutions only work in fullscreen).

Have already ran the game with NVIDIA SLI disabled, and can confirm the issue still persists. In DX9 with SLI, the game works fine. I believe the issue is simply DX11, and I haven't tried running the game in fullscreen yet. I will go ahead and give it a go now.

I've just got this problem today exactly and it's pissing me off. Like everything was working fine and now it just does not want to work.

I share your frustration, and highly recommend trying these different solutions that I listed in my OP. So far, DX9 has been the temporary solution fix that has been able to let me keep playing the game. I'd suggest that, if you haven't already.