Query backend’s setup_required() every time. fixes #6041

diff --git a/gtk2_ardour/engine_dialog.cc b/gtk2_ardour/engine_dialog.cc
index 3e1337e62a1b841e6dc0f7157ab4f3d3496361df..a7ef061d171519b52a554a70903b031547292f2b 100644 (file)
--- a/gtk2_ardour/engine_dialog.cc
+++ b/gtk2_ardour/engine_dialog.cc
@@ -324,6 +324,7 @@ void
 EngineControl::on_show ()
 {
        ArdourDialog::on_show ();
+       backend_changed ();
        device_changed ();
        ok_button->grab_focus();
 }