Night-light feature is enabled also in GDM screen, see

here : https://bugzilla.gnome.org/show_bug.cgi?id=785273

for more info.

If you want to disable it please type this command:

运行命令

sudo -u gdm dbus-launch --exit-with-session gsettings set org.gnome.settings-daemon.plugins.color night-light-enabled false
05-11 00:51