I thought I might share this, if there is a chance that it could help someone else 🙂
These are the configurations that I tried so far. All with PG48UQ Firmware V028.
|Connection||Overclock||Supported Color Depth||Other|
|HDMI 4m||Yes||8bcs||2-3 sec blackscreens every few minutes|
|HDMI 4m||No||12bcs||2-3 sec blackscreens every few minutes|
|DP 2m||Yes||12bcs||No problem|
|DP 2m||No||12bsc||No problem|
I also ordered some 1/2m HDMI cables to try tomorrow.
I just encountered this issue with my monitor going black and had no idea what was going on and I found this thread.
This is a brand new PG42UQ on firmware v035 that I've had for two days. I don't have exact details since it was completely unexpected but I believe the monitor was on for at least 4 hours. It went black and was completely unresponsive to the remote and screen buttons. Audio via line out on the monitor continued playing and usb light plugged into the monitor was still powered. It was in this state for at least a minute until I unplugged the power and replugged it in after which it showed picture again and was responsive to controls.
Using display port 1.4 cable plugged into Windows 10 system. Overclocking disabled and running at 120hz, adaptive sync enabled, standard power setting, screen saver off, pixel move light, auto logo brightness on.