--- src/main.c
+++ src/main.c
@@ -747,6 +747,17 @@
         exit(1);
     }
 
+    if (wVisualID < 0)
+        /*
+         *   If unspecified, use default visual instead of waiting
+         * for wrlib/context.c:bestContext() that may end up choosing
+         * the "fake" 24 bits added by the Composite extension.
+         *   This is required to avoid all sort of corruptions when
+         * composite is enabled, and at a depth other than 24.
+         */
+        wVisualID = (int)DefaultVisual(dpy, DefaultScreen(dpy))->visualid;
+
+
     /* check if the user specified a complete display name (with screen).
      * If so, only manage the specified screen */
     if (DisplayName)