--- krdc/events.h
+++ krdc/events.h
@@ -201,4 +201,20 @@ public:
 	{};
 };
 
+const int EnableClientCursorEventType = 41011;
+
+class EnableClientCursorEvent : public QCustomEvent
+{
+private:
+	int m_enable;
+public:
+	EnableClientCursorEvent(int enable) :
+		QCustomEvent(EnableClientCursorEventType),
+		m_enable(enable)
+	{};
+	~EnableClientCursorEvent() {
+	}
+	int enable() const { return m_enable; };
+};
+
 #endif
--- krdc/vnc/kvncview.cpp
+++ krdc/vnc/kvncview.cpp
@@ -74,7 +74,7 @@ KVncView::KVncView(QWidget *parent,
   m_cthread(this, m_wthread, m_quitFlag),
   m_wthread(this, m_quitFlag),
   m_quitFlag(false),
-  m_enableFramebufferLocking(false),
+  m_enableFramebufferLocking(true),
   m_scaling(false),
   m_remoteMouseTracking(false),
   m_viewOnly(false),
@@ -518,6 +518,10 @@ void KVncView::customEvent(QCustomEvent
 		if (m_cursorState != DOT_CURSOR_ON)
 			showDotCursor(show ? DOT_CURSOR_AUTO : DOT_CURSOR_OFF);
 	}
+	else if (e->type() == EnableClientCursorEventType) {
+		EnableClientCursorEvent *ecce = (EnableClientCursorEvent*) e;
+		enableClientCursor(ecce->enable());
+	}
 }
 
 void KVncView::mouseEvent(QMouseEvent *e) {
@@ -800,7 +804,7 @@ extern void DrawAnyScreenRegionX11Thread
 }
 
 extern void EnableClientCursor(int enable) {
-	kvncview->enableClientCursor(enable);
+	QApplication::postEvent(kvncview, new EnableClientCursorEvent(enable));
 }
 
 extern void LockFramebuffer() {