ERROR 2017-07-21 19:48:34 unity.settings UnitySettings.cpp:318 Invalid monitor index: -1. Returning index 0 monitor instead.

(nautilus:2524): GLib-GIO-CRITICAL **: g_dbus_interface_skeleton_unexport: assertion 'interface_->priv->connections != NULL' failed

(nautilus:2524): GLib-GIO-CRITICAL **: g_dbus_interface_skeleton_unexport: assertion 'interface_->priv->connections != NULL' failed

(nautilus:2524): Gtk-CRITICAL **: gtk_icon_theme_get_for_screen: assertion 'GDK_IS_SCREEN (screen)' failed

(nautilus:2524): GLib-GObject-WARNING **: invalid (NULL) pointer instance

(nautilus:2524): GLib-GObject-CRITICAL **: g_signal_connect_object: assertion 'G_TYPE_CHECK_INSTANCE (instance)' failed
WARN  2017-07-22 04:29:51 unity <unknown>:0 compiz: Fatal IO error 11 (Resource temporarily unavailable) on X server :0.