diff --git a/src/PepperDash.Essentials.Devices.Common/Displays/DisplayBase.cs b/src/PepperDash.Essentials.Devices.Common/Displays/DisplayBase.cs
index 541ef80a..9796599b 100644
--- a/src/PepperDash.Essentials.Devices.Common/Displays/DisplayBase.cs
+++ b/src/PepperDash.Essentials.Devices.Common/Displays/DisplayBase.cs
@@ -29,6 +29,8 @@ namespace PepperDash.Essentials.Devices.Common.Displays
 
             protected set
             {
+                if (_currentInputPort == value) return;
+
                 _currentInputPort = value;
 
                 InputChanged?.Invoke(this, _currentInputPort);