I tested totem and rhythmbox with overlay scrollbars removed (not only disabled) and this warning message is gone. Seems to be bug from gtk in combination with overlay scrollbars. Therefore mark the bug for totem and rhythmbox invalid.
** Changed in: rhythmbox (Ubuntu) Status: Confirmed => Invalid ** Changed in: totem (Ubuntu) Status: Confirmed => Invalid ** Also affects: overlay-scrollbar Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1086494 Title: GtkScrolledWindow is mapped but visible child GtkScrollbar is not mapped To manage notifications about this bug go to: https://bugs.launchpad.net/gtk/+bug/1086494/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs