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Recently Gnome came up with a new feature of Night Light. It is really helpful.
It feels too time-consuming that I need to go to settings (and then display) and activate it each time. Is there any terminal command that can simply turn on the night light feature?
Manual and/or sunrise to sunset option aren't really helpful as even I don't know when I will be needing that particular feature to turn on or off.
I tried to google but, found nothing related to command.
Might not matter, but just in case, I am using Kali Linux.

This is the feature I am talking about.
enter image description here

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    You mean gnome, right? This is a gnome feature, not a kernel feature.
    – Zip
    Oct 23, 2017 at 22:10
  • Yes! That's right.
    – Ugnes
    Oct 23, 2017 at 22:11
  • @Zip if this is Gnome feature then why I didnt found it in Ubuntu ?
    – Infinite Loops
    Nov 25, 2018 at 7:40
  • @InfiniteLoops Which version fo Ubuntu are you using?
    – Ugnes
    Nov 26, 2018 at 14:11
  • Another way (cron+redshift) described here: askubuntu.com/questions/991832/…
    – Anatolii Kurotych
    Dec 23, 2020 at 17:22

1 Answer 1

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Yes, you can turn it on with 

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

or

dconf write /org/gnome/settings-daemon/plugins/color/night-light-enabled true

Same commands with false instead of true will turn it off.

If you list the keys under the org.gnome.settings-daemon.plugins.color schema you'll see that you can also configure the schedule (auto: on/off, manual: from/to) as well as the night light temperature. A very convenient way to set the latter is via the night light slider extension.

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  • The first command is now giving the error: GLib-GIO-Message: Using the 'memory' GSettings backend. Your settings will not be saved or shared with other applications. The second one is working fine. What could be the reason?
    – Ugnes
    Nov 9, 2017 at 19:38
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    @Ugnes - google for that error and you'll see there are plenty of possible causes. FWIW I can't reproduce it... works fine here.
    – don_crissti
    Nov 9, 2017 at 21:14
  • @don_crissti I am able to execute the commands that you mentioned as follows: $ gsettings set org.gnome.settings-daemon.plugins.color night-light-enabled true; $ gsettings get org.gnome.settings-daemon.plugins.color night-light-enabled; true. But nothing happens. I opened dconf-editor GUI, and the value doesn't change there, even though using gsettings get outputs changed value. What should be done?
    – Porcupine
    Feb 7, 2020 at 20:10

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