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>

.gitea/workflows/release.yaml

@@ -17,19 +17,32 @@ jobs:
         with:
           dotnet-version: '9.0.x'
 
+      - name: Update version in project files
+        shell: powershell
+        run: |
+          $version = "${{ gitea.ref_name }}".TrimStart("v")
+          Write-Host "Setting version to: $version"
+
+          # Update csproj (preserve UTF-8 BOM encoding)
+          $csprojPath = "DellMonitorControl/DellMonitorControl.csproj"
+          $content = [System.IO.File]::ReadAllText($csprojPath)
+          $content = $content -replace '<Version>.*</Version>', "<Version>$version</Version>"
+          $content = $content -replace '<AssemblyVersion>.*</AssemblyVersion>', "<AssemblyVersion>$version.0</AssemblyVersion>"
+          $content = $content -replace '<FileVersion>.*</FileVersion>', "<FileVersion>$version.0</FileVersion>"
+          [System.IO.File]::WriteAllText($csprojPath, $content, [System.Text.UTF8Encoding]::new($true))
+
+          # Update ISS
+          $issPath = "DellMonitorControl/MonitorControl.iss"
+          $issContent = [System.IO.File]::ReadAllText($issPath)
+          $issContent = $issContent -replace '#define MyAppVersion ".*"', "#define MyAppVersion `"$version`""
+          [System.IO.File]::WriteAllText($issPath, $issContent, [System.Text.UTF8Encoding]::new($true))
+
       - name: Restore dependencies
         run: dotnet restore
 
       - name: Build Release
         run: dotnet build --configuration Release --no-restore
 
-      - name: Update version in ISS
-        shell: powershell
-        run: |
-          $version = "${{ gitea.ref_name }}".TrimStart("v")
-          $issPath = "DellMonitorControl/MonitorControl.iss"
-          (Get-Content $issPath) -replace '#define MyAppVersion ".*"', "#define MyAppVersion `"$version`"" | Set-Content $issPath
-
       - name: List build output
         shell: cmd
         run: |

DellMonitorControl/App.xaml.cs

@@ -7,13 +7,42 @@ namespace DellMonitorControl
     {
         private TaskbarIcon? _trayIcon;
         private MainWindow? _mainWindow;
+        private UpdateInfo? _pendingUpdate;
 
-        private void Application_Startup(object sender, StartupEventArgs e)
+        private async void Application_Startup(object sender, StartupEventArgs e)
         {
             _trayIcon = (TaskbarIcon)FindResource("TrayIcon");
             _trayIcon.TrayLeftMouseUp += TrayIcon_Click;
+            _trayIcon.TrayBalloonTipClicked += TrayIcon_BalloonTipClicked;
 
             _mainWindow = new MainWindow();
+
+            // Check for updates in background
+            await CheckForUpdatesAsync();
+        }
+
+        private async System.Threading.Tasks.Task CheckForUpdatesAsync()
+        {
+            try
+            {
+                _pendingUpdate = await UpdateChecker.CheckForUpdateAsync();
+                if (_pendingUpdate != null && _trayIcon != null)
+                {
+                    _trayIcon.ShowBalloonTip(
+                        "Update Available",
+                        $"Monitor Control v{_pendingUpdate.LatestVersion} is available.\nClick to download.",
+                        BalloonIcon.Info);
+                }
+            }
+            catch { }
+        }
+
+        private void TrayIcon_BalloonTipClicked(object sender, RoutedEventArgs e)
+        {
+            if (_pendingUpdate != null && !string.IsNullOrEmpty(_pendingUpdate.DownloadUrl))
+            {
+                UpdateChecker.OpenDownloadPage(_pendingUpdate.DownloadUrl);
+            }
         }
 
         private async void TrayIcon_Click(object sender, RoutedEventArgs e)

DellMonitorControl/ConfigWindow.xaml.cs

@@ -34,6 +34,22 @@ public partial class ConfigWindow : Window
         spPorts.Children.Clear();
         _portRows.Clear();
 
+        // Show unsupported message if no ports available
+        if (_availablePorts == null || _availablePorts.Count == 0)
+        {
+            spPorts.Children.Add(new TextBlock
+            {
+                Text = "Unsupported",
+                Foreground = Brushes.Gray,
+                FontSize = 16,
+                FontStyle = FontStyles.Italic,
+                HorizontalAlignment = HorizontalAlignment.Center,
+                VerticalAlignment = VerticalAlignment.Center,
+                Margin = new Thickness(0, 40, 0, 40)
+            });
+            return;
+        }
+
         foreach (var port in _availablePorts)
         {
             var existingPortConfig = config.Ports.FirstOrDefault(p => p.VcpValue == port.Value);

DellMonitorControl/DellMonitorControl.csproj

@@ -12,17 +12,10 @@
 		<Copyright>Copyright © DangWang $([System.DateTime]::Now.ToString(yyyy))</Copyright>
 	</PropertyGroup>
 
-	<PropertyGroup Condition="'$(Configuration)'=='Release'">
-		<Major>1</Major>
-		<Minor>0</Minor>
-		<ProjectStartedDate>$([System.DateTime]::op_Subtraction($([System.DateTime]::get_Now().get_Date()),$([System.DateTime]::new(2023,7,2))).get_TotalDays())</ProjectStartedDate>
-		<DaysSinceProjectStarted>$([System.DateTime]::Now.ToString(Hmm))</DaysSinceProjectStarted>
-		<DateTimeSuffix>$([System.DateTime]::Now.ToString(yyyyMMdd))</DateTimeSuffix>
-		<VersionSuffix>$(Major).$(Minor).$(ProjectStartedDate).$(DaysSinceProjectStarted)</VersionSuffix>
-		<AssemblyVersion Condition=" '$(DateTimeSuffix)' == '' ">0.0.0.1</AssemblyVersion>
-		<AssemblyVersion Condition=" '$(DateTimeSuffix)' != '' ">$(VersionSuffix)</AssemblyVersion>
-		<Version Condition=" '$(DateTimeSuffix)' == '' ">0.0.0.1</Version>
-		<Version Condition=" '$(DateTimeSuffix)' != '' ">$(DateTimeSuffix)</Version>
+	<PropertyGroup>
+		<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) =>
@@ -410,26 +419,33 @@ 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
         };
-        btn.Click += async (s, e) =>
+
+        if (!isUnsupported)
         {
-            if (s is Button b && b.Tag is string sn)
+            btn.Click += async (s, e) =>
             {
-                var current = await CMMCommand.GetMonPowerStatus(sn);
-                if (current == "Sleep" || current == "PowerOff")
-                    await CMMCommand.PowerOn(sn);
-                else
-                    await CMMCommand.Sleep(sn);
-                await Task.Delay(1000);
-                b.Content = await CMMCommand.GetMonPowerStatus(sn);
-            }
-        };
+                if (s is Button b && b.Tag is string sn)
+                {
+                    var current = await CMMCommand.GetMonPowerStatus(sn);
+                    if (current == "Sleep" || current == "PowerOff")
+                        await CMMCommand.PowerOn(sn);
+                    else
+                        await CMMCommand.Sleep(sn);
+                    await Task.Delay(1000);
+                    b.Content = await CMMCommand.GetMonPowerStatus(sn);
+                }
+            };
+        }
 
         row.Children.Add(btn);
         return row;

DellMonitorControl/UpdateChecker.cs

@@ -0,0 +1,119 @@
+using System;
+using System.Diagnostics;
+using System.Net.Http;
+using System.Reflection;
+using System.Text.Json;
+using System.Threading.Tasks;
+
+namespace DellMonitorControl;
+
+public class UpdateChecker
+{
+    private const string ReleasesApiUrl = "https://git.marketally.com/api/v1/repos/misc/ControlMyMonitorManagement/releases/latest";
+    private static readonly HttpClient _httpClient = new() { Timeout = TimeSpan.FromSeconds(10) };
+
+    public static Version CurrentVersion => Assembly.GetExecutingAssembly().GetName().Version ?? new Version(1, 0, 0);
+
+    public static async Task<UpdateInfo?> CheckForUpdateAsync()
+    {
+        try
+        {
+            DebugLogger.Log($"Checking for updates... Current version: {CurrentVersion}");
+
+            var response = await _httpClient.GetStringAsync(ReleasesApiUrl);
+            var release = JsonSerializer.Deserialize<GiteaRelease>(response);
+
+            if (release == null || string.IsNullOrEmpty(release.tag_name))
+            {
+                DebugLogger.Log("No release info found");
+                return null;
+            }
+
+            var latestVersionStr = release.tag_name.TrimStart('v', 'V');
+            if (!Version.TryParse(latestVersionStr, out var latestVersion))
+            {
+                DebugLogger.Log($"Could not parse version: {release.tag_name}");
+                return null;
+            }
+
+            DebugLogger.Log($"Latest version: {latestVersion}");
+
+            if (latestVersion > CurrentVersion)
+            {
+                // Find the installer asset
+                string? downloadUrl = null;
+                if (release.assets != null)
+                {
+                    foreach (var asset in release.assets)
+                    {
+                        if (asset.name?.EndsWith(".exe", StringComparison.OrdinalIgnoreCase) == true)
+                        {
+                            downloadUrl = asset.browser_download_url;
+                            break;
+                        }
+                    }
+                }
+
+                // Fallback to release page if no direct download
+                downloadUrl ??= release.html_url;
+
+                DebugLogger.Log($"Update available: {latestVersion}, URL: {downloadUrl}");
+
+                return new UpdateInfo
+                {
+                    CurrentVersion = CurrentVersion,
+                    LatestVersion = latestVersion,
+                    DownloadUrl = downloadUrl ?? "",
+                    ReleaseNotes = release.body ?? ""
+                };
+            }
+
+            DebugLogger.Log("No update available");
+            return null;
+        }
+        catch (Exception ex)
+        {
+            DebugLogger.LogError("Update check failed", ex);
+            return null;
+        }
+    }
+
+    public static void OpenDownloadPage(string url)
+    {
+        try
+        {
+            Process.Start(new ProcessStartInfo
+            {
+                FileName = url,
+                UseShellExecute = true
+            });
+        }
+        catch (Exception ex)
+        {
+            DebugLogger.LogError("Failed to open download page", ex);
+        }
+    }
+}
+
+public class UpdateInfo
+{
+    public Version CurrentVersion { get; set; } = new(1, 0, 0);
+    public Version LatestVersion { get; set; } = new(1, 0, 0);
+    public string DownloadUrl { get; set; } = "";
+    public string ReleaseNotes { get; set; } = "";
+}
+
+public class GiteaRelease
+{
+    public string? tag_name { get; set; }
+    public string? name { get; set; }
+    public string? body { get; set; }
+    public string? html_url { get; set; }
+    public GiteaAsset[]? assets { get; set; }
+}
+
+public class GiteaAsset
+{
+    public string? name { get; set; }
+    public string? browser_download_url { get; set; }
+}

Library/Helpers/ConsoleHelper.cs

@@ -19,7 +19,7 @@ internal class ConsoleHelper
             }
         };
 
-    public static async Task<string> ExecuteCommand(string command)
+    public static async Task<string> ExecuteCommand(string command, int timeoutMs = 5000)
     {
         Process p = new Process();
         p.StartInfo.UseShellExecute = false;
@@ -27,10 +27,18 @@ internal class ConsoleHelper
         p.StartInfo.RedirectStandardOutput = true;
         p.StartInfo.FileName = command;
         p.Start();
-        var output = await p.StandardOutput.ReadToEndAsync();
-        await p.WaitForExitAsync();
 
-        return output;
+        var readTask = p.StandardOutput.ReadToEndAsync();
+        var completedTask = await Task.WhenAny(readTask, Task.Delay(timeoutMs));
+
+        if (completedTask != readTask)
+        {
+            // Timeout - kill the process
+            try { p.Kill(true); } catch { }
+            return string.Empty;
+        }
+
+        return await readTask;
     }
 
     public static async Task<string> CmdCommandAsync(params string[] cmds) =>
@@ -40,6 +48,11 @@ internal class ConsoleHelper
         Command(cmdFileName, cmds);
 
     public static async Task<string> CommandAsync(string fileName, params string[] cmds)
+    {
+        return await CommandAsync(fileName, 5000, cmds);
+    }
+
+    public static async Task<string> CommandAsync(string fileName, int timeoutMs, params string[] cmds)
     {
         var p = CreatProcess(fileName);
         p.Start();
@@ -48,14 +61,29 @@ internal class ConsoleHelper
             p.StandardInput.WriteLine(cmd);
         }
         p.StandardInput.WriteLine("exit");
-        var result = await p.StandardOutput.ReadToEndAsync();
-        var error = await p.StandardError.ReadToEndAsync();
-        if (!string.IsNullOrWhiteSpace(error))
-            result = result + "\r\n<Error Message>:\r\n" + error;
-        await p.WaitForExitAsync();
+
+        var readTask = Task.Run(async () =>
+        {
+            var result = await p.StandardOutput.ReadToEndAsync();
+            var error = await p.StandardError.ReadToEndAsync();
+            if (!string.IsNullOrWhiteSpace(error))
+                result = result + "\r\n<Error Message>:\r\n" + error;
+            return result;
+        });
+
+        var completedTask = await Task.WhenAny(readTask, Task.Delay(timeoutMs));
+
+        if (completedTask != readTask)
+        {
+            // Timeout - kill the process
+            try { p.Kill(true); } catch { }
+            return string.Empty;
+        }
+
+        var output = await readTask;
         p.Close();
-        Debug.WriteLine(result);
-        return result;
+        Debug.WriteLine(output);
+        return output;
     }
 
     public static string Command(string fileName, params string[] cmds)

Library/Method/CMMCommand.cs

@@ -30,26 +30,32 @@ public static class CMMCommand
         return ConsoleHelper.CmdCommandAsync($"{CMMexe} /SetValue {monitorSN} D6 4");
     }
 
-    private static async Task<string> GetMonitorValue(string monitorSN, string vcpCode = "D6", int? reTry = 0)
+    private static async Task<string> GetMonitorValue(string monitorSN, string vcpCode = "D6", int maxRetries = 2)
     {
-        var value = string.Empty;
-        while (reTry <= 5)
+        for (int attempt = 0; attempt <= maxRetries; attempt++)
         {
             var cmdFileName = Path.Combine(CMMTmpFolder, $"{Guid.NewGuid()}.bat");
             var cmd = $"{CMMexe} /GetValue {monitorSN} {vcpCode}\r\n" +
                       $"echo %errorlevel%";
             File.WriteAllText(cmdFileName, cmd);
             var values = await ConsoleHelper.ExecuteCommand(cmdFileName);
-            File.Delete(cmdFileName);
+            try { File.Delete(cmdFileName); } catch { }
 
-            value = values.Split("\r\n", StringSplitOptions.RemoveEmptyEntries).LastOrDefault();
+            // Empty result means timeout - don't retry, monitor is unresponsive
+            if (string.IsNullOrEmpty(values))
+                return string.Empty;
 
-            if (!string.IsNullOrEmpty(value) && value != "0") return value;
-            await Task.Delay(500);
-            await GetMonitorValue(monitorSN, vcpCode, reTry++);
-        };
+            var value = values.Split("\r\n", StringSplitOptions.RemoveEmptyEntries).LastOrDefault();
 
-        return value;
+            if (!string.IsNullOrEmpty(value) && value != "0")
+                return value;
+
+            // Only retry on non-timeout failures
+            if (attempt < maxRetries)
+                await Task.Delay(300);
+        }
+
+        return string.Empty;
     }
 
     #region Brightness (VCP Code 10)