PG48UQ Black screen and HDR issues

[Greeny_SA]

Howdy

Having some issues with my PG48UQ and wanted to see if it was isolated or not. Have seen a few threads on the 42, but less on the 48.

Issue 1 - Screen goes black without any message, just black. Doesn't drop input, just black and unresponsive for minutes at a time. Eventually you can use the remote to cycle it off and back on after a few mins. Is this a forced pixel refresh or something, even though it says nothing?

Issue 2 - Turning HDR on in windows looks washed out and awful. Not sure if I am doing something wrong or not but colours just seem brown? I noticed that RT'ings review of the 42 mentioned something similar.

Running Firmware V025 so there isn't really anything I can update to.

People have any ideas or is this just a matter of wait for a Firmware that might fix it? Seems disingenuous to sell something as HDR when it doesn't work.

Thanks

[Kobaturtle]

Same windows washed out HDR issue here. we need a firmware update fix like Asus did for PG42UQ

[Doctor_Headlock]

People citing that the windows desktop looks washed out in HDR mode as a problem seem to have a fundamental misunderstanding of how HDR works. Of course it will look washed out, if you map SDR content onto an HDR colour space, it's not going to fill the whole thing and will inevitably look dull. Showing HDR content in HDR mode looks great. It's the exact same reason why if you output limited range RGB to something that expects full range RGB, the blacks are dark grey and the whites are pale grey. There is a colour mapping mismatch there. You won't get a normal looking desktop in HDR mode, because the desktop is always rendered in SDR.

[paperjace]

Thanks for the reply. I understand the differences between HDR and SDR content, Limited/Full color space, and many other color calibration options. I have exhausted every option I could change in Windows 11, Nvidia Control Panel, and HDR Calibration Tool. Nothing works. The PG48UQ will be in HDR mode and the whites will be bright, but the colors are totally washed out.  And again, I plugged in my laptop into my LG OLED TV and the HDR was perfect without adjusting a single setting other than turning HDR On.

Unless ASUS releases a firmware update fixing this HDR issue, this monitor is junk for HDR. Wish I had purchased an LG C3 instead. This monitor is my last ASUS purchase.

[Greeny_SA]

It looked washed out and brown in HDR mode in games as well. Triple checked that HDR was enabled in 3 different games on windows 10 and windows 11. The games in windows 10 were an entirely different colour to windows 11 with the same settings in both screen calibration and game. 

I can't say if it's still that way, haven't booted from that drive in months but it was really obvious.