engine dialog fix buffersize sensitivity

diff --git a/gtk2_ardour/engine_dialog.cc b/gtk2_ardour/engine_dialog.cc
index 942de79b1b78f841f9dbe0ae6ba9a97fe598be36..0ce413246d137857f8b670691e23a7bd5ccdf2a9 100644 (file)
--- a/gtk2_ardour/engine_dialog.cc
+++ b/gtk2_ardour/engine_dialog.cc
@@ -852,6 +852,13 @@ EngineControl::list_devices ()
                } else {
                        ok_button->set_sensitive (true);
                        apply_button->set_sensitive (true);
+                       if (backend->can_change_sample_rate_when_running() && sample_rate_combo.get_children().size() > 0) {
+                               sample_rate_combo.set_sensitive (true);
+                       }
+                       if (backend->can_change_buffer_size_when_running() && buffer_size_combo.get_children().size() > 0) {
+                               buffer_size_combo.set_sensitive (true);
+                       }
+
                }
        }
 }