503829 2025-05-06 07:54:18 +0000 If I rotate the screen, the brightness becomes super bright for few milliseconds in HDR. 2025-10-17 20:26:25 +0000 1 1 4 Plasma kwin colour-management 6.3.4 Arch Linux Linux RESOLVED FIXED NOR normal --- 1 laichiaheng kwin-bugs-null nate https://invent.kde.org/plasma/kwin/-/commit/2867f094893ff5797f10b406e173710cd8c93b44 6.5.0 0 oldest_to_newest 2421396 0 laichiaheng 2025-05-06 07:54:18 +0000 SUMMARY If I rotate my screen, my monitor becomes super bright for few milliseconds, and then turns back to normal. It only happens in HDR mode. I'm aware that it may hurt my back light of my monitor. STEPS TO REPRODUCE 1. Rotate the screen via kscreen-doctor or System Settings. OBSERVED RESULT The screen turns super bright for a short moment, and then turns back to normal. EXPECTED RESULT Just like SDR mode, the brightness shouldn't change. SOFTWARE/OS VERSIONS Windows: macOS: (available in the Info Center app, or by running `kinfo` in a terminal window) Linux/KDE Plasma: 6.3.4 KDE Plasma Version: 6.3.4 KDE Frameworks Version: 6.13.0 Qt Version: 6.9.0 ADDITIONAL INFORMATION 2423111 1 vlad.zahorodnii 2025-05-12 07:20:45 +0000 The screentransform effect ignores color description stuff. 2461892 2 bug-janitor 2025-10-14 15:07:31 +0000 A possibly relevant merge request was started @ https://invent.kde.org/plasma/kwin/-/merge_requests/8250 2462172 3 xaver.hugl 2025-10-15 11:51:08 +0000 Git commit 1b967a881e8a010af4056c637ba65205575c87b9 by Xaver Hugl. Committed on 15/10/2025 at 10:54. Pushed by zamundaaa into branch 'master'. plugins/screentransform: support color management This simply makes sure that both previous and current textures of the screen are rendered with the color description of the screen. M +6 -5 src/plugins/screentransform/screentransform.cpp https://invent.kde.org/plasma/kwin/-/commit/1b967a881e8a010af4056c637ba65205575c87b9 2462202 4 xaver.hugl 2025-10-15 14:39:34 +0000 Git commit 2867f094893ff5797f10b406e173710cd8c93b44 by Xaver Hugl. Committed on 15/10/2025 at 14:05. Pushed by zamundaaa into branch 'Plasma/6.5'. plugins/screentransform: support color management This simply makes sure that both previous and current textures of the screen are rendered with the color description of the screen. (cherry picked from commit 1b967a881e8a010af4056c637ba65205575c87b9) Co-authored-by: Xaver Hugl <xaver.hugl@kde.org> M +6 -5 src/plugins/screentransform/screentransform.cpp https://invent.kde.org/plasma/kwin/-/commit/2867f094893ff5797f10b406e173710cd8c93b44