File gsd-raise-sound-osd-wmcalss.patch of Package gnome-settings-daemon
--- plugins/media-keys/gsd-media-keys-window.c 2009-02-15 23:41:56.000000000 +0530
+++ plugins/media-keys/gsd-media-keys-window.c 2009-08-05 01:30:26.000000000 +0530
@@ -933,6 +933,9 @@ gsd_media_keys_window_init (GsdMediaKeys
screen = gtk_widget_get_screen (GTK_WIDGET (window));
+ /* Set this class for Moblin to understand to raise above UX Shell */
+ gtk_window_set_wmclass (window, "gsd-window-class", "hardware-osd");
+
window->priv->is_composited = gdk_screen_is_composited (screen);
if (window->priv->is_composited) {