By default the night light widget in the system tray is configured to only show when relevant. It appears when the night light turns on (adjusting screen color for night). If you middle click the widget to toggle the night light the widget disappears (apparently no longer considered relevant) and once it disappears the night light will not function even if toggled back on by any other means. This is all I've found that can restore the night light functionality. killall plasmashell; kstart plasmashell Other things that fail: Go into system tray expansion and middle click the icon. Place Color and Brightness widget somewhere else (Desktop, Panel, etc.) and middle click it. Assign a global K-win short cut to toggle the night light and use the short cut. None of those methods will restart the night light color shift once the widget has auto-hidden after the first click to toggle the night light off. If the system tray setting is changed to show always the middle click toggle works normally. STEPS TO REPRODUCE 1. Enable Night Light with system tray widget set to show only when relevant 2. Middle click the widget in the system tray to toggle night light off. 3. Use any method to attempt to toggle night light back on. OBSERVED RESULT Night light does not come back on, at least not the change in screen color. You can move the night light toggle in the expanded widget view but it doesn't do anything. EXPECTED RESULT Night Light turns back on and screen changes color. SOFTWARE/OS VERSIONS Linux/KDE Plasma: Opensuse Tumbleweed (available in About System) KDE Plasma Version: 6.0.2 KDE Frameworks Version: 6.0.0 Qt Version: 6.6.2 ADDITIONAL INFORMATION Graphics Platform: X11
Hm, I can't reproduce this with the steps you describe. What is your configuration for night light switching times?
And does it work normally if you set the widget to always show?
(In reply to Natalie Clarius from comment #1) > Hm, I can't reproduce this with the steps you describe. What is your > configuration for night light switching times? It is set for a manual location. > And does it work normally if you set the widget to always show? Yes it does. The bug only triggers when they system tray widget hides.
FWIW the part about it no longer being considered relevant when night light is toggled off is being changed: https://invent.kde.org/plasma/plasma-workspace/-/merge_requests/4141. Maybe this will the bug go away automatically. Right now I can't think of of what the problem could be.
(In reply to Natalie Clarius from comment #4) > FWIW the part about it no longer being considered relevant when night light > is toggled off is being changed: > https://invent.kde.org/plasma/plasma-workspace/-/merge_requests/4141. Maybe > this will the bug go away automatically. Right now I can't think of of what > the problem could be. No idea. Oddly even when in the broken state changing the color will cause a preview to show correctly. Anyway yes a minor bug as I marked it.
> Anyway yes a minor bug as I marked it. I'd say it's not minor but a normal bug, it does break functionality after all. (I can't change the field myself though.)
(In reply to Natalie Clarius from comment #6) > > Anyway yes a minor bug as I marked it. > > I'd say it's not minor but a normal bug, it does break functionality after > all. (I can't change the field myself though.) Doesn't seem to be a field I can edit either. If it's not easily repeatable maybe it's something in my setup / a problem with the upgrade from 5 to 6.
I can't reproduce this issue in current git master. Is it still happening to you in Plasma 6.1.3 or later? If so, it would be great if you can try on Wayland too, and also with different switching time settings. Anything to narrow down the conditions under which the issue occurs. Thanks!
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(In reply to Nate Graham from comment #8) > I can't reproduce this issue in current git master. Is it still happening to > you in Plasma 6.1.3 or later? > > If so, it would be great if you can try on Wayland too, and also with > different switching time settings. Anything to narrow down the conditions > under which the issue occurs. Thanks! Since the tray widget no longer hides (it stays relevant) when you toggle the night light off the conditions that triggered this bug no longer exist. So it is no longer happening.