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BingBong
Asked: 2020-01-12 06:14:36 +0800 CST

Automatically Disable Night Light when fullscreen?

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Ubuntu 18.04 Gnome DE

When I go fullscreen in stuff like games or youtube, I'd like night light to automatically disable, is this possible?

I like to have it always on to reduce eyestrain for every other activity.

games fullscreen night-light

1 Answers

  1. Workaround

    until experts write the correct way.. you may do the following trick..

    install the packages xdotool and wmctrl with below command

    sudo apt install xdotool wmctrl

    then create a script with below content and bind the script with any keyboard shortcut you wish.

    #!/bin/bash

wmctrl -r :ACTIVE: -b toggle,fullscreen

WINDOW=$(echo $(xwininfo -id $(xdotool getactivewindow) -stats | \
                egrep '(Width|Height):' | \
                awk '{print $NF}') | \
         sed -e 's/ /x/')
SCREEN=$(xdpyinfo | grep -m1 dimensions | awk '{print $2}')

if [ "$WINDOW" != "$SCREEN" ]; then
gsettings set org.gnome.settings-daemon.plugins.color night-light-enabled false
else
gsettings set org.gnome.settings-daemon.plugins.color night-light-enabled true
fi

    I Have used the shortcut Alt+N to run the command /bin/bash nl.sh

    enter image description here

    Source: https://askubuntu.com/a/30414/739431

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