Oversaturated videos when HDR is turned on

[Paddo]

Hey y'all,

I've bought an Alienware aw3423dwf because I wanted to try out OLED and HDR gaming. It's been an amazing monitor so far. The only issue I have is that sometimes, when HDR is enabled in Windows, videos appear oversaturated as hell as you can see in the screenshots. It's only affecting videos, not pictures or text or anything else. Every nvidia RTX viode feature is turned off.
Sometimes dragging another windows to the screen, even if the video is in full screen, solves the issue but not always. I have no idea what causes the issue since most of the time it just works as intended.
I've tried all setting in the nvidia and Windows HDR control panels but nothing seems to do the trick except for turning off HDR in Windows or closing and opening the browser a few times.
I'm on Windows 11 22631.3737, Brave 1.67.119 and nvidia grd 555.99

Oh, also watching content on floatplane is fine but other streaming services like YouTube, Netflix or Prime Video are still messed up.

[SpookyCitrus]

Did you do HDR calibration? Or just enable it and tweak some settings?

 

Also, I have seen a poor quality or faulty cable cause issues such as this.

[Paddo]

10 minutes ago, SpookyCitrus said:

Did you do HDR calibration? Or just enable it and tweak some settings?

 

Also, I have seen a poor quality or faulty cable cause issues such as this.

I did calibrate the HDR, I have tweaked some settings on the monitor but even if I reset it the videos still look like this.
Also did try a few different DP cables, same problem.

 

 

Edit: I swapped the DP cables between my two monitors and would you look at that! HDR works like a charm! Seems like all my other cables are just not good enough.

[Paddo]

Spoke too soon, the problem came back today. Still no clue why