diff --git a/pvgateway.py b/pvgateway.py
index 6b50aa2..075bf1e 100644
--- a/pvgateway.py
+++ b/pvgateway.py
@@ -555,6 +555,7 @@ class PVGateway(QWidget):
 
             if  LooseVersion(QT_VERSION_STR) >= LooseVersion("5.3"):
                 self.blockSignals(True)
+                print("pvgateway", self.font().pixelSize(), _value_str)
                 self.setText(_value_str)
                 self.blockSignals(False)
             else: