clear engine device combo when no devices are available

diff --git a/gtk2_ardour/engine_dialog.cc b/gtk2_ardour/engine_dialog.cc
index 41b48b911c0c410f8b46114736a80d0ed2ad0e0c..51f2add40f4899691fb4c57e9e5ae22489f51d85 100644 (file)
--- a/gtk2_ardour/engine_dialog.cc
+++ b/gtk2_ardour/engine_dialog.cc
@@ -796,6 +796,7 @@ EngineControl::list_devices ()
                apply_button->set_sensitive (true);
 
        } else {
+               device_combo.clear();
                sample_rate_combo.set_sensitive (false);
                buffer_size_combo.set_sensitive (false);
                input_latency.set_sensitive (false);