https://bugs.kde.org/show_bug.cgi?id=493076
Bug ID: 493076
Summary: Night color fails to activate on secondary screen with
color management after reboot
Classification: Plasma
Product: kdeplasma-addons
Version: 6.1.90
Platform: NixOS
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: Night Color Control
Assignee: plasma-b...@kde.org
Reporter: chermnykh2...@gmail.com
CC: kwin-bugs-n...@kde.org, vlad.zahorod...@kde.org
Target Milestone: ---
STEPS TO REPRODUCE
1. Have multiple displays with color management (ICC profile) configured
2. Use `powerdevil` built without `ddcutil` support (to enable plasma's color
management based brightness control). The external display should use plasma's
color management as its brightness source
3. Set the external display brightness to 100%
2. Set night color to "custom times" (the current state should be "evening
transition", possibly reproduces with other states)
3. Reboot
OBSERVED RESULT
Night color is only activated for the internal laptop display
Re-activating night color does not enable the it for the external display
Disabling and re-enabling ICC profile for the external screen also enables
night color for the screen
EXPECTED RESULT
Night color should be enabled automatically
SOFTWARE/OS VERSIONS
Operating System: NixOS 24.11
KDE Plasma Version: 6.1.90
KDE Frameworks Version: 6.5.0
Qt Version: 6.7.2
Kernel Version: 6.10.9-zen1 (64-bit)
Graphics Platform: Wayland
Processors: 16 × AMD Ryzen 7 5800H with Radeon Graphics
Memory: 23.3 GiB of RAM
Graphics Processor: NVIDIA GeForce RTX 3050 Ti Laptop GPU/PCIe/SSE2
ADDITIONAL INFORMATION
NVIDIA Driver version: nvidia-open-6.10.9-560.35.03
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