SUMMARY Might light doesn't activate when logging in during a time when night light should be active. Resetting it correctly enables night light. Basically a duplicate of https://bugs.kde.org/show_bug.cgi?id=413607 STEPS TO REPRODUCE 1. 2. 3. OBSERVED RESULT EXPECTED RESULT SOFTWARE/OS VERSIONS Operating System: KDE neon 5.27 KDE Plasma Version: 5.27.8 KDE Frameworks Version: 5.110.0 Qt Version: 5.15.10 Kernel Version: 6.2.0-33-generic (64-bit) Graphics Platform: X11 Processors: 20 × 13th Gen Intel® Core™ i5-13600K Memory: 31.1 GiB of RAM Graphics Processor: NVIDIA GeForce GTX 1060 6GB/PCIe/SSE2 Manufacturer: ASRock Product Name: Z690M-ITX/ax ADDITIONAL INFORMATION
Oh I forgot to mention, this only started happening recently. Maybe caused by a nvidia driver update?
Found another symptom. Opening the nvidia-settings app disables night light. Moving the sliders in the night light settings fixes it.
(In reply to mashkal2000@gmail.com from comment #2) > Found another symptom. Opening the nvidia-settings app disables night light. Afaik, this has always been the case. Maybe to better see modifications you make in that Nvidia settings menu. Night Color needs to be put off and back on afterwards.