In my case this seems to have been caused by having acroread installed (bug 769866).
I applied https://bugs.launchpad.net/ubuntu/+source/acroread/+bug/769866/comments/54 to /opt/Adobe/Reader9/Resource/Shell/acroread_tab and things started working as they did before. If that works for you as well we should mark this bug as a dupe of that -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/958291 Title: Bad path autocomplete on some commands To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/bash/+bug/958291/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs