Using sudo leafpad in terminal gives a (slightly) more informative answer;
sudo leafpad /etc/sysconfig/apmd (leafpad:7423): IBUS-WARNING **: The owner of /home/mise/.config/ibus/bus is not root! It seems to confirm Daniel's research findings. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1575484 Title: "Set document metadata failed" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gedit/+bug/1575484/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs