Animated backgrounds don't use animated gif's, they have an xml file that describe a set of png files and the required transitions.
See /usr/share/backgrounds/gnome/adwaita-timed.xml and /usr/share/gnome-background-properties/ug-utopic-wallpapers.xml for some examples ** Changed in: gnome-shell (Ubuntu) Status: New => Invalid ** Changed in: gnome-control-center (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-control-center in Ubuntu. https://bugs.launchpad.net/bugs/1489116 Title: Unable to set gif as locked screen image, nor as background image To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-control-center/+bug/1489116/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs