X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=gtk2_ardour%2Fengine_dialog.cc;h=f3dba387abbb5109e035decff1738eaf17bc5841;hb=5f9e81b105e84988a92c1f448fa46d9054893b55;hp=9f95ecce08a8c59f3b56d10511d65ce6fb880486;hpb=8b4eb07ab7a6b16646baf36c8d140cb694bbc830;p=ardour.git

diff --git a/gtk2_ardour/engine_dialog.cc b/gtk2_ardour/engine_dialog.cc
index 9f95ecce08..f3dba387ab 100644
--- a/gtk2_ardour/engine_dialog.cc
+++ b/gtk2_ardour/engine_dialog.cc
@@ -373,7 +373,10 @@ EngineControl::build_notebook ()
 		basic_vbox.pack_start (*hpacker);
 	}
 
-	basic_vbox.show_all ();
+	{
+		PBD::Unwinder<uint32_t> protect_ignore_changes (ignore_changes, ignore_changes + 1);
+		basic_vbox.show_all ();
+	}
 }
 
 void
@@ -555,10 +558,10 @@ EngineControl::enable_latency_tab ()
 	lm_back_button_signal.disconnect();
 	if (_measure_midi) {
 		lm_back_button_signal = lm_back_button.signal_clicked().connect (sigc::bind (sigc::mem_fun (notebook, &Gtk::Notebook::set_current_page), midi_tab));
-		lm_preamble.set_markup (_(""));
+		lm_preamble.hide ();
 	} else {
 		lm_back_button_signal = lm_back_button.signal_clicked().connect (sigc::bind (sigc::mem_fun (notebook, &Gtk::Notebook::set_current_page), 0));
-		lm_preamble.set_markup (_("<span weight=\"bold\">Turn down the volume on your audio equipment to a very low level.</span>"));
+		lm_preamble.show ();
 	}
 
 	set_popdown_strings (lm_output_channel_combo, outputs);
@@ -826,6 +829,11 @@ EngineControl::list_devices ()
 
 		device_changed ();
 
+		input_latency.set_sensitive (true);
+		output_latency.set_sensitive (true);
+		input_channels.set_sensitive (true);
+		output_channels.set_sensitive (true);
+
 		ok_button->set_sensitive (true);
 		apply_button->set_sensitive (true);