diff --git a/electron/idle-time-handler.ts b/electron/idle-time-handler.ts
index f873b2f45..090ed08f6 100644
--- a/electron/idle-time-handler.ts
+++ b/electron/idle-time-handler.ts
@@ -227,12 +227,19 @@ export class IdleTimeHandler {
       // Try gdbus first as it might work better in snap environments
       let command =
         'gdbus call --session --dest org.gnome.Mutter.IdleMonitor --object-path /org/gnome/Mutter/IdleMonitor/Core --method org.gnome.Mutter.IdleMonitor.GetIdletime';
+      const isSnap = !!process.env.SNAP;
 
       // Check if gdbus is available
       try {
         await execAsync('which gdbus', { timeout: 1000 });
       } catch {
-        // Fall back to dbus-send if gdbus is not available
+        if (isSnap) {
+          log.warn(
+            'gdbus unavailable in snap environment, skipping dbus-send fallback to avoid libdbus mismatch',
+          );
+          return null;
+        }
+        // Fall back to dbus-send if gdbus is not available outside of snap
         command =
           'dbus-send --print-reply --dest=org.gnome.Mutter.IdleMonitor /org/gnome/Mutter/IdleMonitor/Core org.gnome.Mutter.IdleMonitor.GetIdletime';
       }
diff --git a/electron/start-app.ts b/electron/start-app.ts
index 9111a00dd..057ad0fe5 100644
--- a/electron/start-app.ts
+++ b/electron/start-app.ts
@@ -112,6 +112,15 @@ export const startApp = (): void => {
     return true;
   };
 
+  const enableSwiftshaderFallback = (): void => {
+    log('Snap: Forcing Chromium SwiftShader software renderer fallback');
+    app.commandLine.appendSwitch('use-angle', 'swiftshader');
+    app.commandLine.appendSwitch('use-gl', 'swiftshader');
+    app.commandLine.appendSwitch('enable-webgl');
+    app.commandLine.appendSwitch('ignore-gpu-blacklist');
+    app.commandLine.appendSwitch('ignore-gpu-blocklist');
+  };
+
   // Workaround for Electron 38+ snap package GPU issues (issue #5252)
   // Electron 38.1+ has GPU/Mesa driver access issues in snap confinement
   const isForceGpu = process.argv.some((val) => val.includes('--enable-gpu'));
@@ -147,9 +156,8 @@ export const startApp = (): void => {
     // Chromium's sandbox conflicts with snap confinement causing launch failures
     app.commandLine.appendSwitch('no-sandbox');
   } else if (isSnap && !isForceGpu) {
-    log(
-      'Snap: Falling back to hardware acceleration because llvmpipe renderer is unavailable',
-    );
+    log('Snap: llvmpipe renderer unavailable, falling back to SwiftShader');
+    enableSwiftshaderFallback();
   }
 
   // Initialize protocol handling