No HDR available on OLED laptop with Intel iGPU

[solo16]

Hi @Cyber_Raven ,

With the latest version of plasma / kwin 6.3.4 you could add an environment variable in order to “force” the HDR option appear in the display setting.

I’ve posted the temp solution a day ago, you may want to have a look for details:

How to force enable HDR on Plasma 6.3.4

With the latest Plasma 6.3.4 I could finally enable HDR on my laptop which is Asus Zenbook 14 UX3405CA with intel iGPU Arc 140T. For details please check out this commit : Add the following line to the environment the HDR selection box will be appear in the display setting: KWIN_FORCE_ASSUME_HDR_SUPPORT=1 tested with some random Sony HDR demo clip with MPV it works!!! Cheers!

TL;DR
Add this to your environment and I think KWIN_DRM_ALLOW_INTEL_COLORSPACE is no longer needed so you may want to comment it out.

KWIN_FORCE_ASSUME_HDR_SUPPORT=1

FYI, with the latest version of MPV you could play Youtube in HDR natively as well.

Cheers!