Both systems 11.10 and 12.04 are EOL. It was pointed out correctly, that there have been several (eol) versions of Ubuntu since 2012. No wonder there are 736594 open and 67280 unconfirmed bugs on launchpad.
By the way I cannot confirm this behavior on Xubutnu 14.04 LTS and 18.04 LTS. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/997153 Title: xfce4-panel does not show all windows if panel area to small To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xfce4-panel/+bug/997153/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs