I too see tons of messages in systemd. xrandr -q works fine from the terminal. however, I just caught these access denied messages as well. Looks like the root cause.
Sender: xdg-desktop-por Message: Failed to get application states: GDBus.Error:org.freedesktop.portal.Error.Failed: Could not get window list: GDBus.Error:org.freedesktop.DBus.Error.AccessDenied: App introspection not allowed -- 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/1730072 Title: Gnome Night Light doesn't work Status in gnome-control-center package in Ubuntu: Invalid Bug description: I have a similar issue as this bug https://bugs.launchpad.net/ubuntu/+source/gnome-control- center/+bug/1676131. But I am reopening according to what it is said in the last post of the above bug ticket. Gnome Night Light doesn't work on my system: Asus UX301L Notebook using Ubuntu 17.10 with the latest updates. It used to work and suddenly stopped working but I can't remember at what period exactly. I think it was before the official release... If you need more information, tell me. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-control-center/+bug/1730072/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
