diff --git a/kcm/src/declarative/qmloutput.cpp b/kcm/src/declarative/qmloutput.cpp
--- a/kcm/src/declarative/qmloutput.cpp
+++ b/kcm/src/declarative/qmloutput.cpp
@@ -209,7 +209,7 @@
         }
     }
 
-    return mode->size().height() / m_output->scale();
+    return mode->size().height() * m_output->scale();
 }
 
 int QMLOutput::currentOutputWidth() const
@@ -231,7 +231,7 @@
         }
     }
 
-    return mode->size().width() / m_output->scale();
+    return mode->size().width() * m_output->scale();
 }
 
 void QMLOutput::currentModeIdChanged()