It sounds like you're referring to a dock button. So that we can find out more about the system please run:
gsettings list-recursively org.gnome.shell > settings.txt and then attach the resulting text file. Please also attach a screenshot of the issue/button/menu if you can. Just press PrtScn and look in the Pictures folder. ** Package changed: xorg (Ubuntu) => gnome-shell (Ubuntu) ** 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/1890084 Title: show app not work To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1890084/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs