Add debug logging for dropdown selection and power unsupported state

- Added detailed logging in CreateInputRow to help diagnose dropdown
  selection issues after config label changes
- Power button now shows "Power Unsupported" and is disabled for
  monitors that don't support DDC/CI power control

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

DellMonitorControl/DellMonitorControl.csproj

@@ -13,9 +13,9 @@
 	</PropertyGroup>
 
 	<PropertyGroup>
-		<Version>1.0.16</Version>
-		<AssemblyVersion>1.0.16.0</AssemblyVersion>
-		<FileVersion>1.0.16.0</FileVersion>
+		<Version>1.0.17</Version>
+		<AssemblyVersion>1.0.17.0</AssemblyVersion>
+		<FileVersion>1.0.17.0</FileVersion>
 	</PropertyGroup>
 
 	<ItemGroup>

DellMonitorControl/MainWindow.xaml.cs

@@ -371,6 +371,10 @@ public partial class MainWindow : Window
 
     private StackPanel CreateInputRow(int? currentInput, List<InputSourceOption> options, string serialNumber)
     {
+        DebugLogger.Log($"  CreateInputRow: currentInput={currentInput}, optionCount={options.Count}");
+        foreach (var opt in options)
+            DebugLogger.Log($"    Option: Value={opt.Value}, Name={opt.Name}");
+
         var row = new StackPanel { Orientation = Orientation.Horizontal, Margin = new Thickness(0, 3, 0, 3) };
         row.Children.Add(new TextBlock { Text = "Input", Foreground = Brushes.LightGray, Width = 70, FontSize = 12, VerticalAlignment = VerticalAlignment.Center });
 
@@ -390,9 +394,14 @@ public partial class MainWindow : Window
         if (currentInput.HasValue)
         {
             var index = options.FindIndex(o => o.Value == currentInput.Value);
+            DebugLogger.Log($"    Selection: Looking for Value={currentInput.Value}, found at index={index}");
             if (index >= 0)
                 combo.SelectedIndex = index;
         }
+        else
+        {
+            DebugLogger.Log($"    Selection: currentInput is null, no selection");
+        }
 
         // Add event handler AFTER setting the initial selection
         combo.SelectionChanged += async (s, e) =>
@@ -410,13 +419,19 @@ public partial class MainWindow : Window
         var row = new StackPanel { Orientation = Orientation.Horizontal, Margin = new Thickness(0, 3, 0, 3) };
         row.Children.Add(new TextBlock { Text = "Power", Foreground = Brushes.LightGray, Width = 70, FontSize = 12, VerticalAlignment = VerticalAlignment.Center });
 
+        var isUnsupported = string.IsNullOrEmpty(status) || status == "Unknown";
+
         var btn = new Button
         {
-            Content = status,
+            Content = isUnsupported ? "Power Unsupported" : status,
             Width = 170,
             Tag = serialNumber,
-            Style = (Style)FindResource("DarkButton")
+            Style = (Style)FindResource("DarkButton"),
+            IsEnabled = !isUnsupported
         };
+
+        if (!isUnsupported)
+        {
             btn.Click += async (s, e) =>
             {
                 if (s is Button b && b.Tag is string sn)
@@ -430,6 +445,7 @@ public partial class MainWindow : Window
                     b.Content = await CMMCommand.GetMonPowerStatus(sn);
                 }
             };
+        }
 
         row.Children.Add(btn);
         return row;