https://bugs.kde.org/show_bug.cgi?id=496991
--- Comment #6 from Zamundaaa <xaver.h...@gmail.com> --- > Not sure but, shouldn't Max display mastering luminance be 1261? In theory, yes. In practice, I had this very issue of my monitor being too dim until I set the max brightness to the max. average instead of the max. peak brightness... I see two reasons for why this could be happening: 1. your monitor takes issue with the HDR metadata we send it. If you use gamescope on a tty, you might be able to play with different HDR metdata to figure this one out. We should probably allow configuring the HDR metadata we send to the screen for testing such cases as well. 2. the Intel kernel driver is still broken when it comes to handling the Colorspace property, and your monitor is one of the many that don't actually enable HDR unless that works properly. If your screen has an OSD where it shows whether or not HDR is enabled, please check that, and if you have another device with an AMD or NVidia GPU, you could check with that as well. For testing 2, if you're willing to compile KWin, you could also try changing BT2020_RGB in https://invent.kde.org/plasma/kwin/-/blob/Plasma/6.2/src/backends/drm/drm_pipeline.cpp?ref_type=heads#L300 to BT2020_YCC -- You are receiving this mail because: You are watching all bug changes.
