user@comp:~$ gnome-alsamixer
** (gnome-alsamixer:6726): WARNING **: gam_toggle_get_state (). No idea what to do for mixer element "Mono Output Select"!
(gnome-alsamixer:6726): Gtk-CRITICAL **: IA__gtk_settings_get_for_screen: assertion `GDK_IS_SCREEN (screen)' failed
(gnome-alsamixer:6726): GLib-GObject-CRITICAL **: g_object_get: assertion `G_IS_OBJECT (object)' failed
(gnome-alsamixer:6726): Gtk-CRITICAL **: IA__gtk_settings_get_for_screen: assertion `GDK_IS_SCREEN (screen)' failed
(gnome-alsamixer:6726): GLib-GObject-CRITICAL **: g_object_get: assertion `G_IS_OBJECT (object)' failed
(gnome-alsamixer:6726): Gtk-CRITICAL **: IA__gtk_settings_get_for_screen: assertion `GDK_IS_SCREEN (screen)' failed
(gnome-alsamixer:6726): GLib-GObject-CRITICAL **: g_object_get: assertion `G_IS_OBJECT (object)' failed
(gnome-alsamixer:6726): Gtk-CRITICAL **: IA__gtk_settings_get_for_screen: assertion `GDK_IS_SCREEN (screen)' failed
(gnome-alsamixer:6726): GLib-GObject-CRITICAL **: g_object_get: assertion `G_IS_OBJECT (object)' failed
(gnome-alsamixer:6726): Gtk-CRITICAL **: IA__gtk_settings_get_for_screen: assertion `GDK_IS_SCREEN (screen)' failed
(gnome-alsamixer:6726): GLib-GObject-CRITICAL **: g_object_get: assertion `G_IS_OBJECT (object)' failed
(gnome-alsamixer:6726): Gtk-CRITICAL **: IA__gtk_settings_get_for_screen: assertion `GDK_IS_SCREEN (screen)' failed
(gnome-alsamixer:6726): GLib-GObject-CRITICAL **: g_object_get: assertion `G_IS_OBJECT (object)' failed
`menu_proxy_module_load': gnome-alsamixer: undefined symbol: menu_proxy_module_load
(gnome-alsamixer:6726): Gtk-WARNING **: Failed to load type module: (null)
`menu_proxy_module_load': gnome-alsamixer: undefined symbol: menu_proxy_module_load
(gnome-alsamixer:6726): Gtk-WARNING **: Failed to load type module: (null)
(gnome-alsamixer:6726): GLib-GObject-WARNING **: invalid (NULL) pointer instance
(gnome-alsamixer:6726): GLib-GObject-CRITICAL **: g_signal_connect_data: assertion `G_TYPE_CHECK_INSTANCE (instance)' failed
(gnome-alsamixer:6726): GLib-CRITICAL **: g_hash_table_lookup: assertion `hash_table != NULL' failed
(gnome-alsamixer:6726): GLib-CRITICAL **: g_hash_table_lookup: assertion `hash_table != NULL' failed
(gnome-alsamixer:6726): GLib-CRITICAL **: g_hash_table_lookup: assertion `hash_table != NULL' failed
(gnome-alsamixer:6726): GLib-CRITICAL **: g_hash_table_insert_internal: assertion `hash_table != NULL' failed
(gnome-alsamixer:6726): GLib-CRITICAL **: g_hash_table_lookup: assertion `hash_table != NULL' failed
Segmentation fault
user@comp:~$
Ubuntu 11.10 Oneiric Ocelot i386