Windows 10: Turning on HDR on my secondary display effects color / brightness on my non-HDR main display

So I have an ROG PG259QNR HDR 1080p 360 hz monitor as a secondary extended display. My main monitor is an Acer X34 3440x1440p IPS display 2015 model.When I turn on HDR for the ROG monitor, the white point / brightness on my Acer gets noticeably brighter washed out. Why would turning on HDR for another display effect the color/contrast/brightness of the other monitor?!?! Is this a known issue? Something I can correct for manually? I'd love to be able to use HDR on my secondary display without it ruining the image on my main display. Anyone have any ideas?and yes my display drivers are full

:)

 

HDR on HDR monitor causes issue on secondary, non-HDR monitor

I have an Aorus AD27QD (HDR) monitor as my primary display and an ultrawide 34UM88-P (Non-HDR) as my secondary. If HDR is enabled in windows and I go to a full screen video on the non-HDR monitor after a few seconds it will flicker blue then become severely
washed out. Coming out of full screen fixes this. If HDR is not enabled full screen shows the colors perfectly normally.

Secondarily, with windows HDR on on the Aorus, the colors dim pretty drastically. HDR content great but anything that isnt HDR is dim enough to make me question if my brightness is turned down. (Its not, its 90/100). The white of a plain browser window
seems so dim its nearly grey. I also tested this on what I know is a particularly vibrant (non-HDR) . HDR on? Terrible and muted. HDR off? Bright and vibrant.

I have played with in-monitor settings, nvidia control panel, factory reset of monitor, basically everything I can think of. Everything points to it being a windows issue.

I also tried out the suggestions from this post. And it pointed me to this
set of OS release notes which didnt solve my issue either.

I could really use some help because I am really feeling like I wasted my money on this monitor.

PC:

i5 7600k

GTX 1080ti

16GB 3000Hz Corsair RAM

Windows, CPU and GPU on latest drivers available.

Monitors:

LG 34UM88-P (HDMI)

Aorus AD27QD (DisplayPort)

 

Display Cloning in HDR: Possible?

Hey folks -

Based on my initial testing, I think the answer to my query is: No. But I wanted to bounce it off others as well.

I have two HDR-capable 4K displays connected to my PC. Windows 10 recognizes them both as HDR-capable as well. My experiment here is with display cloning. Sending the output of the main display over to the secondary one. All is well until I try to play
an HDR game, such as Battlefield V. It only starts in SDR.

When I'm not cloning my display, the game starts up in HDR, no problem. So ultimately the question is: Should I be able to clone an HDR display over to another HDR display? Or is that just not technically doable?

Thanks!

 

intel UHD graphics no HDR

Hi,

We appreciate your efforts in providing details about your concern. To turn on HDR and advanced color
settings in Windows 10:

• Select the Start button, then select Settings > System > Display .
• Turn on HDR and advanced color.
• Select HDR and advanced color settings to view the color settings for your HDR display.
  
  The HDR and advanced color settings page shows the color properties for your HDR display—including the wide format resolution, refresh rate, color bit depth, and color format.

Here's an
article for more information about HDR and advanced color settings in Windows 10.

Should you have any other concerns, don’t hesitate to let us know.