Random black screen during FFXIV Heavensward gameplay

I have this PC and installation running for a couple years now while playing various games without any issue from the graphics card.

Recently I started FFXIV and so far everything worked fine, until I started to play the first expansion content. During game play I get at random times black screens. The system is still running, I just don’t get any video output anymore. I connected via SSH from another computer and watched “dmesg”. After the black screen occurs I see the following messages there:

[11303.224211] NVRM: GPU at PCI:0000:01:00: GPU-0b4cda80-07b2-13fb-9c08-f03bf0381c28
[11303.224213] NVRM: Xid (PCI:0000:01:00): 16, pid=0, Head 00000000 Count 000b1ef6
[11311.534091] NVRM: Xid (PCI:0000:01:00): 16, pid=16, Head 00000000 Count 000b1ef7
[11319.853967] NVRM: Xid (PCI:0000:01:00): 16, pid=6226, Head 00000000 Count 000b1ef8
[11328.183850] NVRM: Xid (PCI:0000:01:00): 16, pid=0, Head 00000000 Count 000b1ef9
[11336.503749] NVRM: Xid (PCI:0000:01:00): 16, pid=0, Head 00000000 Count 000b1efa
[11344.813634] NVRM: Xid (PCI:0000:01:00): 16, pid=0, Head 00000000 Count 000b1efb
[11353.133512] NVRM: Xid (PCI:0000:01:00): 16, pid=0, Head 00000000 Count 000b1efc
[11361.463408] NVRM: Xid (PCI:0000:01:00): 16, pid=0, Head 00000000 Count 000b1efd
[11369.783297] NVRM: Xid (PCI:0000:01:00): 16, pid=0, Head 00000000 Count 000b1efe
[11378.093175] NVRM: Xid (PCI:0000:01:00): 16, pid=0, Head 00000000 Count 000b1eff
[11386.413068] NVRM: Xid (PCI:0000:01:00): 16, pid=0, Head 00000000 Count 000b1f00
[11394.732946] NVRM: Xid (PCI:0000:01:00): 16, pid=0, Head 00000000 Count 000b1f01
[11403.062837] NVRM: Xid (PCI:0000:01:00): 16, pid=0, Head 00000000 Count 000b1f02
[11411.372721] NVRM: Xid (PCI:0000:01:00): 16, pid=0, Head 00000000 Count 000b1f03
[11419.692602] NVRM: Xid (PCI:0000:01:00): 16, pid=0, Head 00000000 Count 000b1f04
[11428.022469] NVRM: Xid (PCI:0000:01:00): 16, pid=0, Head 00000000 Count 000b1f05
[11463.772567] nvidia-modeset: WARNING: GPU:0: Timeout while waiting for idle.
[11465.772637] nvidia-modeset: ERROR: GPU:0: Idling display engine timed out: 0x0000957d:0:0:428

I have no idea what is happening here. Is the GPU crashing?

Output of the nvidia-bug-report tool: nvidia-bug-report.log.gz (676.7 KB)

https://docs.nvidia.com/deploy/xid-errors/index.html

According to this chart Xid 16 means HW error.

Not sure if I read that table correctly, but it looks to me like Xid 16 says “Display engine hung” and “Driver Error”

Yep, sorry. Chart looks fucked up on my mobile device it seems.