Confirmed workaround from comment #12 in emacs24 24.3+1-2ubuntu1 (Ubuntu 14.04), normally using @im=ibus and the right Ctrl key as the compose key.
Confirmed workaround from comment #12 in emacs24 24.3+1-2ubuntu1 (Ubuntu 14.04), normally using @im=ibus and the right Ctrl key as the compose key.