+ const gchar* key = gconf_entry_get_key (entry);
+ g_assert (key != NULL);
+
+ // Ignore notification about keys we don't care about
+ if (strcmp (key, MODE_GCONF_KEY) != 0)
+ return;
+
+ const GConfValue* value = gconf_entry_get_value (entry);
+ g_assert (value != NULL);
+ g_assert (GCONF_VALUE_TYPE_VALID (value->type));
+
+ priv->blanking_mode = gconf_value_get_int (value);
+ update_gui (priv);