https://bugs.kde.org/show_bug.cgi?id=493612
Bug ID: 493612
Summary: Night Light fails to activate when displayport
monitors go to sleep triggering hotplug
Classification: Applications
Product: systemsettings
Version: git-stable-Plasma/6.1
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: kcm_nightcolor
Assignee: plasma-b...@kde.org
Reporter: atericpar...@gmail.com
CC: kwin-bugs-n...@kde.org
Target Milestone: ---
SUMMARY
If the monitors turn off for any reason, night light will fail to activate.
This is because of Displayport "hotplug", where sleeping displayport monitors
are treated as unplugged.
STEPS TO REPRODUCE
1. Turn off a displayport monitor before Night Light's activation time.
2. Turn it on after activation, it doesn't activate.
OBSERVED RESULT
Night Light never triggers
EXPECTED RESULT
Night light should work normally.
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: 6.10
KDE Plasma Version: 6.15
KDE Frameworks Version: 6.6
Qt Version: 6.7.2
ADDITIONAL INFORMATION
This can probably be fixed by checking night light status whenever a monitor is
plugged or unplugged.
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