diff --git a/useractions.cpp b/useractions.cpp
index 67e726ae8e..7ccdbddaf3 100755
--- a/useractions.cpp
+++ b/useractions.cpp
@@ -1292,8 +1292,21 @@ void Workspace::slotWindowToDesktop()
     }
 }
 
+static bool screenSwitchImpossible()
+{
+    if (!options->isActiveMouseScreen())
+        return false;
+    QStringList args;
+    args << "--passivepopup" << i18n("The window manager is confgured to consider the screen with the mouse on it as active one.\n"
+                                     "Therefore it is not possible to switch to a screen explicitly.") << "20";
+    KProcess::startDetached("kdialog", args);
+    return true;
+}
+
 void Workspace::slotSwitchToScreen()
 {
+    if (screenSwitchImpossible())
+        return;
     const int i = senderValue(sender());
     if (i > -1)
         setCurrentScreen(i);
@@ -1301,6 +1314,8 @@ void Workspace::slotSwitchToScreen()
 
 void Workspace::slotSwitchToNextScreen()
 {
+    if (screenSwitchImpossible())
+        return;
     setCurrentScreen((activeScreen() + 1) % numScreens());
 }