Thank you for reporting this bug to Ubuntu. Ubuntu GNOME 16.04 (xenial) reached end-of-life on April, 2019 Ubuntu 15.10 (wily) reached end-of-life on July 28, 2016.
https://ubuntugnome.org/ubuntu-gnome-16-04-lts-is-here/ https://wiki.ubuntu.com/XenialXerus/ReleaseNotes/UbuntuGNOME We appreciate that this bug may be old and you might not be interested in discussing it any more. But if you are then please upgrade to the latest Ubuntu version and re-test. If you then find the bug is still present in the newer Ubuntu version, please add a comment here telling us which new version it is in. ** Changed in: gnome-shell (Ubuntu) Status: Confirmed => Won't Fix -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-shell in Ubuntu. https://bugs.launchpad.net/bugs/1543273 Title: When clicking "Back" on the login screen the password box and buttons stay on top Status in GNOME Shell: Confirmed Status in Ubuntu GNOME: Confirmed Status in gnome-shell package in Ubuntu: Won't Fix Bug description: This bug was present in 3.16, is present in 3.18 (what I am currently running), and is present in 3.19. And the bug is that often when I click "Back" (though you might have to try this a few times to get this to happen) I get this and have to click "Back" again to get rid of the password box and buttons which stay on top: GDM_Error_Login.png (the screenshot is of my Ubuntu GNOME 16.04 32-bit VM running GNOME 3.19) To manage notifications about this bug go to: https://bugs.launchpad.net/gnome-shell/+bug/1543273/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp