Nitro XV273K randomly blacks out every now and then
My Acer Nitro XV273K sometimes goes blank (displaying only blackness and turning off the backlight) for about 5 seconds and then the picture is restored. This must have happened 10 times this evening in the span of 3-4 hours. Does anyone else suffer from this problem? Is it a known problem that a firmware update might be able to fix? It's a pretty bad thing to happen during intense gaming, to go blind for 5 seconds.
I haven't been doing anything special when the blackout occurs; it has also happened when I've just been reading a web page and haven't touched anything for a minute. I'm using the native 4k resolution at 120Hz non-HDR. I just tried a custom 4k resolution at 100Hz, and it blacked out too. The blanking seems like the signal is lost and the display has to "re-connect". I've got the monitor connected to an Nvidia 1080Ti using the DisplayPort cable that came with the monitor. It's firmly connected, and wiggling the DP cable or the power cable doesn't cause a blackout.
Of course it could be a problem with the GPU too, but I've never seen any blackouts on a 60Hz 4k screen that I've used for over 12 months with this GPU. I don't think the display driver is crashing and causing blackouts, because I haven't gotten any notifications about driver crashes.