diff --git a/src/frontends/qt4/QGraphics.C b/src/frontends/qt4/QGraphics.C
index 6dab88e6f2..e9b872b131 100644
--- a/src/frontends/qt4/QGraphics.C
+++ b/src/frontends/qt4/QGraphics.C
@@ -219,10 +219,8 @@ void QGraphics::update_contents()
 		case graphics::NoDisplay: item = 0; break;
 	}
 	dialog_->showCB->setCurrentIndex(item);
-	dialog_->showCB->setEnabled(igp.display != graphics::NoDisplay && !readOnly());
-	dialog_->displayGB->setChecked(igp.display != graphics::NoDisplay);
-	dialog_->displayscale->setEnabled(igp.display != graphics::NoDisplay && !readOnly());
 	dialog_->displayscale->setText(toqstr(convert<string>(igp.lyxscale)));
+	dialog_->displayGB->setChecked(igp.display != graphics::NoDisplay);
 
 	// the output section (width/height)
 	dialog_->Scale->setText(toqstr(igp.scale));
diff --git a/src/frontends/qt4/QGraphicsDialog.C b/src/frontends/qt4/QGraphicsDialog.C
index 2b79726e09..40a7cab885 100644
--- a/src/frontends/qt4/QGraphicsDialog.C
+++ b/src/frontends/qt4/QGraphicsDialog.C
@@ -57,6 +57,8 @@ QGraphicsDialog::QGraphicsDialog(QGraphics * form)
 		this, SLOT( change_adaptor() ) );
 	connect(clip, SIGNAL( stateChanged(int) ),
 		this, SLOT( change_adaptor() ) );
+	connect(displayGB, SIGNAL( toggled(bool) ),
+		this, SLOT( change_adaptor() ) );
 	connect(showCB, SIGNAL( currentIndexChanged(int) ),
 		this, SLOT( change_adaptor() ) );
 	connect(displayscale, SIGNAL( textChanged(const QString&) ),