https://bugs.kde.org/show_bug.cgi?id=505857
Bug ID: 505857 Summary: HDR support issues after updating to 6.4 from 6.3.5 Classification: Plasma Product: KScreen Version First 6.4.0 Reported In: Platform: Arch Linux OS: Linux Status: REPORTED Severity: major Priority: NOR Component: common Assignee: kscreen-bugs-n...@kde.org Reporter: pvpdm...@gmail.com Target Milestone: --- SUMMARY When I did a full system (Arch) update to Plasma 6.4 and after rebooting SDR content when using HDR for my monitor (AOC AG276QZD2) started looking washed out. I did the HDR calibration but to no avail. the sRGB color intensity slider had no effect (100% was exactly the same as 0%) while on 6.3.5 it had a pretty big one. Also, from what I could see, HDR content also looked quite worse, but I didn't confirm that. I reverted back to yesterday's (6.3.5) state (timeshift is magic when it works) and it's a night and day difference for SDR, I still didn't test HDR. STEPS TO REPRODUCE 1. update to plasma 6.4 from 6.3.5 RESULT SDR (and possibly HDR) looks worse than 6.3.5 even after spending lots of time trying to calibrate and fix it. EXPECTED RESULT HDR looks better with all the new tools in the settings. SOFTWARE/OS VERSIONS Operating System: Arch Linux KDE Plasma Version: 6.3.5 KDE Frameworks Version: 6.15.0 Qt Version: 6.9.1 Kernel Version: 6.15.2-arch1-1 (64-bit) Graphics Platform: Wayland Processors: 16 × AMD Ryzen 7 3700X 8-Core Processor Memory: 15.5 GiB of RAM Graphics Processor: AMD Radeon RX 6700 XT ADDITIONAL INFORMATION Monitor is AOC AG276QZD2. I can attach even more info if it is needed, though, I'd prefer if I didn't have to go back and forth on plasma versions. Also, this might not be an issue of kscreen, but it seemed like the most sensible thing to pin it on. Here is the list of all packages that were upgraded when going from 6.3.5 to 6.4: abseil-cpp-20250512.1-1 aurorae-6.4.0-1 bluedevil-1:6.4.0-1 breeze-6.4.0-1 breeze-gtk-6.4.0-1 discover-6.4.0-1 docker-buildx-0.25.0-1 drkonqi-6.4.0-1 freerdp-2:3.15.0-1 fwupd-2.0.12-1 gocryptfs-2.5.4-1 kactivitymanagerd-6.4.0-1 kde-cli-tools-6.4.0-1 kde-gtk-config-6.4.0-1 kdecoration-6.4.0-1 kdeplasma-addons-6.4.0-1 kgamma-6.4.0-1 kglobalacceld-6.4.0-1 kinfocenter-6.4.0-1 kmenuedit-6.4.0-1 kpipewire-6.4.0-1 krdp-6.4.0-1 kscreen-6.4.0-1 kscreenlocker-6.4.0-1 ksshaskpass-6.4.0-1 kwallet-pam-6.4.0-1 kwayland-6.4.0-1 kwin-6.4.0-1 kwrited-6.4.0-1 layer-shell-qt-6.4.0-1 lib32-mesa-1:25.1.4-1 libkscreen-6.4.0-1 libksysguard-6.4.0-1 libplasma-6.4.0-1 libxnvctrl-575.64-1 mesa-1:25.1.4-1 milou-6.4.0-1 ocean-sound-theme-6.4.0-1 oxygen-6.4.0-1 oxygen-sounds-6.4.0-1 plasma-activities-6.4.0-1 plasma-activities-stats-6.4.0-1 plasma-browser-integration-6.4.0-1 plasma-desktop-6.4.0-1 plasma-disks-6.4.0-1 plasma-firewall-6.4.0-1 plasma-integration-6.4.0-1 plasma-meta-6.4-4 plasma-nm-6.4.0-1 plasma-pa-6.4.0-1 plasma-systemmonitor-6.4.0-1 plasma-thunderbolt-6.4.0-1 plasma-vault-6.4.0-2 plasma-welcome-6.4.0-1 plasma-workspace-6.4.0-4 plasma-workspace-wallpapers-6.4.0-1 plasma5support-6.4.0-1 polkit-kde-agent-6.4.0-1 powerdevil-6.4.0-1 print-manager-1:6.4.0-1 qqc2-breeze-style-6.4.0-1 qt6-location-6.9.1-1 sddm-kcm-6.4.0-1 sdl2_ttf-2.24.0-1 spectacle-1:6.4.0-1 systemsettings-6.4.0-1 vulkan-intel-1:25.1.4-1 vulkan-radeon-1:25.1.4-1 wacomtablet-6.4.0-1 xdg-desktop-portal-kde-6.4.0-1 -- You are receiving this mail because: You are watching all bug changes.