blakete/ubuntu-night-light-always-on.md

Last active April 24, 2025 15:39

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ubuntu-night-light-always-on.md

Set Ubuntu Nightlight Mode To Always On With Constant Temperature

Set automatic schedule to false

dconf write /org/gnome/settings-daemon/plugins/color/night-light-schedule-automatic false

Set start time to midnight (0.0)

dconf write /org/gnome/settings-daemon/plugins/color/night-light-schedule-from 0.0

Set end time to 24.0 (next midnight)

dconf write /org/gnome/settings-daemon/plugins/color/night-light-schedule-to 24.0

Set color temperature (range: 1000 for warm/red to 10000 for cool/blue)

dconf write /org/gnome/settings-daemon/plugins/color/night-light-temperature 4000

If you want to experiment with different color temperatures, you need to toggle Night Light off and on again to apply the new value:

gsettings set org.gnome.settings-daemon.plugins.color night-light-enabled false
gsettings set org.gnome.settings-daemon.plugins.color night-light-enabled true

Alternatively, if the gsettings based toggling of night light does not work, you can use the sct tool:
```
sudo apt install sct
sct 4000
```

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