That's non problem with non-maximized panels, cf bug #39856, which is not your case if you didn't change the configuration. Marking unconfirmed, low importance, to forward upstream by somebody having that problem
** Changed in: gnome-panel (Ubuntu) Status: Needs Info => Unconfirmed ** Also affects: gnome-panel (upstream) Importance: Undecided Status: Unconfirmed -- Bottom Panel position https://launchpad.net/bugs/83017 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs