I managed to solve my problem by renaming .config and .cache as explained here https://askubuntu.com/questions/831569/unity-is-broken- launcher-menu-bar-dash-disappeared-unity-reinstall-doesnt-w/831570
To sum up: (1) I did a security update on March 2nd then did a reboot on March 3rd (2) Both the launcher and menu bar disappeared in my main session (3) .Xauthority was owned by root, I do not know since when and if it caused any issue (4) .config and/or .cache were likely corrupted, I do not know if this was caused by the update ** Summary changed: - Task bar and launchpad are missing + Task bar and launchpad disappeared -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1753233 Title: Task bar and launchpad disappeared To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/1753233/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
