fix default output map display for no plugin processors

[ardour.git] / gtk2_ardour / midi_time_axis.cc

diff --git a/gtk2_ardour/midi_time_axis.cc b/gtk2_ardour/midi_time_axis.cc
index 0ff084e4f1c687197b11471c53434e1705ab4e29..7b2ddeebc8bc10852d4e34b436a46a50c672eafd 100644 (file)
--- a/gtk2_ardour/midi_time_axis.cc
+++ b/gtk2_ardour/midi_time_axis.cc
@@ -433,6 +433,7 @@ MidiTimeAxisView::drop_instrument_ref ()
 void
 MidiTimeAxisView::start_scroomer_update ()
 {
+       _note_range_changed_connection.disconnect();
        _note_range_changed_connection = midi_view()->NoteRangeChanged.connect (
                sigc::mem_fun (*this, &MidiTimeAxisView::note_range_changed));
 }