Windows 10: No way to stop dimming/adaptive brightness hdr

I just brought a Acer Predator XB273K https://www.amazon.com/gp/product/B07X5MWMDG/ref=ask_ql_qh_dp_hza

the Brightness keeps changing automatically while gaming. I'm using a desktop (windows 10) and there no option to turn off adaptive brightness in the power options menu. the constant dimming is very annoying and eye straining. the dimming from it is so frequent it just looks like the screens is flashing.

Windows 10 Pro - 2004

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:)

 

Dimmed brightness

I have a problem with the dimmed brightness. my monitor always dimmed when I view something that have a low brightness. I change the dimmed brightness setting, turn off the adaptive brightness but my monitor still dim. I'm not sure its a driver issue as
there is no update for my display driver. I am using hp pavilion g4 with intel hd graphic

 

Adaptive Dimming

Thank you for providing your answer to the questions.

If that did not resolve your concern, follow the steps below:

• Go back to the first setting that you've tried (Refer to your screenshot).
• Under Dimmed display brightness, change the value of
  On battery and Plugged in option to "0".
• Click Apply and restart your computer.

Changing the value to "0" won't automatically reduce the display brightness of your computer.

Let us know how it goes.

Thanks.

 

Screen dimming even at 100% brightness

Hi recently bought a Lenovo laptop, a Lenovo V14-ARE laptop, and as soon as I turned it on I noticed, when I put it on 100% brightness it is bright and vivid but then it dims. After a while, the screen brightens again then proceeds to dim once again in a
few seconds. When I plug it in to charge, the screen is bright and vivid but as soon as I unplug it, it dims. I already left clicked on the power icon in the task bar, went to power options and selected "choose when to turn off the display", clicked "change
advanced power settings", scrolled down to "display" and opened its list, but the only option I have for the display's list is "turn off display after", in the Youtube videos I've seen they have an "adaptive brightness" setting or something like that and that
fixes their problem but I don't have that option. My power plan is also in high performance and everything is "on battery" but the problem still happens.

Can this problem be fixed?