gnome-session[7486]: WARNING: Failed to start app: Unable to start application: Failed to execute child process "/usr/lib/at-spi/at-spi-registryd" (No such file or directory)
gnome-session[7486]: WARNING: Failed to start app: Unable to start application: Failed to execute child process "metacity" (No such file or directory)
gnome-session[7486]: WARNING: Failed to start app: Unable to start application: Failed to execute child process "gnome-power-manager" (No such file or directory)

(gnome-settings-daemon:7492): color-plugin-WARNING **: failed to create directory on startup: Error creating directory: Permission denied

(gnome-settings-daemon:7492): color-plugin-WARNING **: failed to get edid: unable to get EDID for output
** (process:7501): DEBUG: Greeter session pid=7501 display=:2 xauthority=/var/run/gdm/auth-for-gdm-5RqELo/database
gdm-simple-greeter[7501]: Gtk-WARNING: Overriding tab label for notebook
gdm-simple-greeter[7501]: Gtk-WARNING: Overriding tab label for notebook
gdm-simple-greeter[7501]: Gtk-WARNING: Overriding tab label for notebook
gdm-simple-greeter[7501]: Gtk-WARNING: Overriding tab label for notebook
gdm-simple-greeter[7501]: Gtk-WARNING: Overriding tab label for notebook
gdm-simple-greeter[7501]: Gtk-WARNING: /build/buildd/gtk+3.0-3.2.0/./gtk/gtkwidget.c:6857: widget not within a GtkWindow
gdm-simple-greeter[7501]: Gtk-CRITICAL: gtk_widget_get_preferred_height_for_width: assertion `width >= 0' failed
gdm-simple-greeter[7501]: Gtk-WARNING: gtk_widget_size_allocate(): attempt to allocate widget with width -3 and height -3
gdm-simple-greeter[7501]: Gtk-CRITICAL: gtk_widget_get_preferred_height_for_width: assertion `width >= 0' failed
gdm-simple-greeter[7501]: Gtk-CRITICAL: gtk_widget_get_preferred_height_for_width: assertion `width >= 0' failed
gdm-simple-greeter[7501]: Gtk-WARNING: gtk_widget_size_allocate(): attempt to allocate widget with width -47 and height -47

(gnome-settings-daemon:7492): color-plugin-WARNING **: failed to connect to device: Failed to connect to missing device /org/freedesktop/ColorManager/devices/cups_PDF

(gnome-settings-daemon:7492): color-plugin-WARNING **: failed to connect to device: Failed to connect to missing device /org/freedesktop/ColorManager/devices/cups_PDF

(gnome-settings-daemon:7492): color-plugin-WARNING **: failed to connect to device: Failed to connect to missing device /org/freedesktop/ColorManager/devices/cups_PSC_2170_Series

(gnome-settings-daemon:7492): color-plugin-WARNING **: failed to connect to device: Failed to connect to missing device /org/freedesktop/ColorManager/devices/cups_PSC_2170_Series

(gnome-settings-daemon:7492): color-plugin-WARNING **: failed to connect to device: Failed to connect to missing device /org/freedesktop/ColorManager/devices/cups_PDF

(gnome-settings-daemon:7492): color-plugin-WARNING **: failed to connect to device: Failed to connect to missing device /org/freedesktop/ColorManager/devices/cups_PDF

(gnome-settings-daemon:7492): color-plugin-WARNING **: failed to connect to device: Failed to connect to missing device /org/freedesktop/ColorManager/devices/cups_PSC_2170_Series

(gnome-settings-daemon:7492): color-plugin-WARNING **: failed to connect to device: Failed to connect to missing device /org/freedesktop/ColorManager/devices/cups_PSC_2170_Series

(gnome-settings-daemon:7492): color-plugin-WARNING **: failed to connect to device: Failed to connect to missing device /org/freedesktop/ColorManager/devices/cups_PDF

(gnome-settings-daemon:7492): color-plugin-WARNING **: failed to connect to device: Failed to connect to missing device /org/freedesktop/ColorManager/devices/cups_PDF

(gnome-settings-daemon:7492): color-plugin-WARNING **: failed to connect to device: Failed to connect to missing device /org/freedesktop/ColorManager/devices/cups_PSC_2170_Series

(gnome-settings-daemon:7492): color-plugin-WARNING **: failed to connect to device: Failed to connect to missing device /org/freedesktop/ColorManager/devices/cups_PSC_2170_Series