gnome-session[1430]: WARNING: Could not parse desktop file gnome-screensaver.desktop or it references a not found TryExec binary
(gnome-settings-daemon:1637): media-keys-plugin-WARNING **: Grab failed for some keys, another application may already have access the them.
(process:1779): Indicator-Power-WARNING **: Fail to query backlight devices.
(process:1789): GLib-CRITICAL **: g_variant_get_string: assertion 'value != NULL' failed
(process:1789): GLib-CRITICAL **: g_variant_get_string: assertion 'value != NULL' failed
(process:1789): GLib-CRITICAL **: g_variant_get_string: assertion 'value != NULL' failed
(process:1789): GLib-CRITICAL **: g_variant_get_string: assertion 'value != NULL' failed
(process:1789): GLib-CRITICAL **: g_variant_get_string: assertion 'value != NULL' failed