I restarted Ubuntu and the icon disappeared. 1) I put a DVD in the optical drive. 2) Ubuntu detected the DVD and displayed the DVD icon on the dash. 3) I pressed the eject button on the optical drive and the disc was ejected. I pushed in the tray. 4) I opened the terminal and typed the command you suggested.
** Attachment added: "mounts.txt" https://bugs.launchpad.net/ubuntu/+source/gnome-shell-extension-ubuntu-dock/+bug/1856032/+attachment/5311879/+files/mounts.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1856032 Title: DVD icon did not disappear from dash. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell-extension-ubuntu-dock/+bug/1856032/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs