In the meantime I've done a re-install of ubuntu-gnome 17.04. After that nightlight is working as expected on my primary display.
I can chowever onfirm the report that nightlight does noth work on my secondary display, but I guess this is a separate bug. ** Bug watch added: GNOME Bug Tracker #783854 https://bugzilla.gnome.org/show_bug.cgi?id=783854 -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-control-center in Ubuntu. https://bugs.launchpad.net/bugs/1676131 Title: Gnome Night Light doesn't work Status in gnome-control-center package in Ubuntu: Incomplete Bug description: On the first boot of Ubuntu, the night light worked but after restart this option does nothing. I couldn't get any log from the terminal. Ubuntu Gnome 17.04 beta2 gnome-control-center 1:3.24.0-0ubuntu1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-control-center/+bug/1676131/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
