Hi everyone, I recently bought an Asus PG27UQ because it finally had the combinations of features that I wanted, but I've been having issues with it recently. The signal from the displayport connection seems to keep flicking on and off, with the screen going black and back again. It even reset itself to 82hz a couple times, and I had to reset the custom resolution to 120hz.
I have the 4k monitor in a triple monitor setup flanked by two 1080p monitors, connected by HDMI, which have had no issues. All three monitors are plugged into a 2080 Ti Asus Strix.
Every once in a while though, when the center display goes "offline", it affects the other displays, which go offline temporarily.
I've already tried changing the GPU entirely (upgraded from a 1080ti to the 2080ti), changing the displayport cables, uninstalling and reinstalling graphics drivers, and powering everything off, unplugging, and plugging everything back in, including PSU cables.
I've also tried connecting the UQ with an Hdmi cable, and it seemed to work fine, except limited to 60hz with no HDR. Also I may have not have had it connected that way for long enough to really see if it avoids the handshake problems, but it seems to.
Outside of the center monitor having this handshake issue, I'm not noticing any other problems. I can play games on the other displays just fine. Sounds like at best the monitor's displayport port is finicky now for some reason, at worst something else with the monitor is broken.