https://bugs.kde.org/show_bug.cgi?id=500144
--- Comment #16 from Zamundaaa <[email protected]> --- > Asume hdr applications are calibrated for that screen to off or on does not > make a difference. Un-checking that option doesn't remove the previous calibration. If you want to remove it, or modify it, you can do so in ~/.config/kwinrc (the Windows_HDR section). For scRGB games, Reference was previously assumed to be 80, for PQ, it was 203. If the values are not set, KWin defaults to Reference=203 MaxFrameAverage=600 MaxLuminance=1000 (you may need to restart kwin to apply the new values, I don't remember which command can be used to make it re-load the config) (In reply to Jakub from comment #14) > I can also confirm that after 6.6 HDR is broken (on intel+NVIDIA at least): > > Note that 1 and 2 run on Intel while 3 (games) run on NVIDIA > > 1. Chromium does not support anymore. Any tests online do not work and > videos on yotube have bt709. Display info from chromium: > So technically primaries are HDR but transfer is gamma22? And 8 bits per > pixel?. > 2. Firefox does not support HDR without forcibly enabling it. > If just `gfx.wayland.hdr` is on, hdr *does not work, but it used to* > If `gfx.wayland.hdr.force-enabled` is on, then hdr does work You've set your display so that reference / SDR luminance is the same as peak luminance. In other words, your display settings make it SDR, so the browsers don't bother loading HDR videos. > 3. Games run on NVIDIA via Proton do see HDR and work correctly Nvidia doesn't support HDR in its Vulkan driver, you need to do additional setup to work around it. Using gamescope is probably the easiest way to do it. -- You are receiving this mail because: You are watching all bug changes.
