Thanks for the bug report. You seem to have found exactly the right existing bug reports but both of those are closed for the case of Gnome Shell on Ubuntu. So let's use this bug for now.
Next, please run this command to send us more information about the system: apport-collect 1800352 ** Changed in: gnome-shell (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-shell in Ubuntu. https://bugs.launchpad.net/bugs/1800352 Title: desktop and current applications displayed when resuming from lock To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1800352/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs