I can confirm it occurs in Bionic. The fact that you have a machine that does not show this message is remarkable to me, as GTK apps tend to be really noisy, showing all sorts of bad looking messages when run from terminal. In fact, I would call that expected behavior. That said, especially given everything otherwise works fine, this is extremely low on the priority list.
** Package changed: lxterminal (Ubuntu) => leafpad (Ubuntu) ** Changed in: leafpad (Ubuntu) Importance: Undecided => Low ** Changed in: leafpad (Ubuntu) Status: Confirmed => Triaged -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1770129 Title: G_IS_DBUS_CONNECTION (connection)' failed To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/leafpad/+bug/1770129/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs