Improve SteamOS/GPU detection and Linux packaging

Enhances GPU flag handling for SteamOS and Gamescope by adding early detection and flag injection in main.js. Updates the README with clearer SteamOS instructions, adds a SteamOS-optimized .desktop file, and improves Linux packaging options in package.json for AppImage and deb targets with appropriate flags and metadata.
2025-12-28 11:42:52 +13:00
parent 27cb97ac00
commit a92e3e4652
4 changed files with 112 additions and 14 deletions
@@ -1,3 +1,66 @@
+// ============================================================================
+// CRITICAL: GPU flags must be applied BEFORE Electron loads
+// These must be at the VERY TOP of main.js for packaged apps
+// ============================================================================
+if (process.platform === 'linux') {
+  const fs = require('fs');
+  
+  // Detect SteamOS/Gamescope environment
+  let isSteamOS = false;
+  try {
+    if (fs.existsSync('/etc/steamos-release')) isSteamOS = true;
+    else if (fs.existsSync('/usr/share/steamos/steamos.conf')) isSteamOS = true;
+    else if (process.env.GAMESCOPE_WAYLAND_DISPLAY) isSteamOS = true;
+    else if (process.env.SteamDeck) isSteamOS = true;
+    else if (process.env.SteamAppId) isSteamOS = true;
+    else if (fs.existsSync('/etc/os-release')) {
+      const osRelease = fs.readFileSync('/etc/os-release', 'utf8');
+      if (osRelease.includes('SteamOS') || osRelease.includes('steamos')) isSteamOS = true;
+    }
+  } catch (e) {}
+  
+  // Apply flags via app.commandLine BEFORE requiring electron
+  // We need to do this via process.argv for packaged apps
+  const linuxFlags = [
+    '--disable-gpu-sandbox',
+    '--no-sandbox',
+    '--disable-dev-shm-usage'
+  ];
+  
+  if (isSteamOS || process.env.GAMESCOPE_WAYLAND_DISPLAY) {
+    console.log('[GPU] SteamOS/Gamescope detected at startup - applying critical flags');
+    linuxFlags.push(
+      '--ozone-platform=x11',
+      '--disable-gpu-compositing',
+      '--disable-gpu-vsync',
+      '--disable-accelerated-2d-canvas',
+      '--use-gl=desktop',
+      '--disable-features=VizDisplayCompositor',
+      '--enable-features=UseOzonePlatform'
+    );
+  } else {
+    // General Linux - detect Wayland vs X11
+    const waylandDisplay = process.env.WAYLAND_DISPLAY;
+    const x11Display = process.env.DISPLAY;
+    
+    if (waylandDisplay && !x11Display) {
+      linuxFlags.push('--ozone-platform=wayland', '--enable-features=UseOzonePlatform,WaylandWindowDecorations');
+    } else if (x11Display) {
+      linuxFlags.push('--ozone-platform=x11');
+    }
+    linuxFlags.push('--disable-features=VizDisplayCompositor');
+  }
+  
+  // Add flags that aren't already present
+  linuxFlags.forEach(flag => {
+    const flagName = flag.split('=')[0];
+    if (!process.argv.some(arg => arg.startsWith(flagName))) {
+      process.argv.push(flag);
+    }
+  });
+}
+// ============================================================================
+
 const { app, BrowserWindow, ipcMain, session, screen, shell, dialog, Menu, clipboard, webContents } = require('electron');
 const { autoUpdater } = require('electron-updater');
 const { pathToFileURL } = require('url');