fix slow behaviour when changing visible track height in Editor::set_visible_track_co...

diff --git a/gtk2_ardour/editor.cc b/gtk2_ardour/editor.cc
index c8a50a1e25b4d36aa6e3a8eb98d8bc33475b709d..2b7182059b7437e5395a16d7e0dd4b6ab8e23533 100644 (file)
--- a/gtk2_ardour/editor.cc
+++ b/gtk2_ardour/editor.cc
@@ -3610,6 +3610,7 @@ Editor::set_visible_track_count (int32_t n)
 
        int h;
        string str;
+       DisplaySuspender ds;
        
        if (_visible_track_count > 0) {
                h = trackviews_height() / _visible_track_count;