https://bugs.kde.org/show_bug.cgi?id=483697
--- Comment #9 from Gianandrea <asubstan...@hotmail.co.uk> --- KDE Plasma Version: 6.0.5 Kernel Version 6.8.7.201-fsync-fc39 Graphics Platform Wayland Nvidia Drivers: 555.42.02 (beta) Since update to Nvidia 555 Beta driver series I can now enable HDR in the menu without it being disabled. The screen becomes super saturated so it is engaging on a system level. So seems like it was an Nvidia handshake issue. I turned on and off a number of times and switched fine. One thing to note, if I did not click the 'keep' text box after changing to SDR, so it switched back to HDR, then the HDR tick box would be empty even though I was in HDR mode. If I changed menu and then went back to display Configuration it was ticked as expected. I can't get it to look reasonable, and checking the TV menu it still is seeing the SDR Colour Spaces, and not the HDR ones. I would guess this relates to this known issue in the Nvidia driver: "the Colorspace property implementations from Intel and NVidia cause washed out colors on many displays, because the API requires the compositor to change the property value depending on whether or not communication with the display uses RGB or YUV encoding… which the compositor doesn’t actually know anything about. The AMD implementation works around this by translating the property to the correct value in the kernel" - https://zamundaaa.github.io/wayland/2024/05/11/more-hdr-and-color.html -- You are receiving this mail because: You are watching all bug changes.
