similar issue in 18.04.4, `gnome-shell 3.28.4` $ xrandr | grep " connected" eDP-1 connected (normal left inverted right x axis y axis) DP-1-1 connected 1920x1080+1920+0 (normal left inverted right x axis y axis) 521mm x 293mm DP-1-2 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 521mm x 293mm
eDP-1 is the built-in laptop monitor; (lid is closed) [1st] DP-1-X are the external monitors over display port; (in active use, dual monitor) [2nd,3rd] primary display is 2nd, secondary display is 3rd -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-settings-daemon in Ubuntu. https://bugs.launchpad.net/bugs/1757280 Title: Night Light only works on one Monitor To manage notifications about this bug go to: https://bugs.launchpad.net/gnome-control-center/+bug/1757280/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs