ubiquity-dm: starting
ubiquity-dm: plymouth
ubiquity-dm: start X ['X', '-br', '-ac', '-noreset', '-nolisten', 'tcp', '-background', 'none', 'vt7', ':0']

X.Org X Server 1.17.2
Release Date: 2015-06-16
X Protocol Version 11, Revision 0
Build Operating System: Linux 3.19.0-43-generic x86_64 Ubuntu
Current Operating System: Linux ubuntu 4.2.0-27-generic #32~14.04.1-Ubuntu SMP Fri Jan 22 15:32:26 UTC 2016 x86_64
Kernel command line: BOOT_IMAGE=/casper/vmlinuz.efi file=/cdrom/preseed/ubuntu.seed boot=casper only-ubiquity quiet splash --
Build Date: 15 January 2016  10:17:33PM
xorg-server 2:1.17.2-1ubuntu9.1~trusty1 (For technical support please see http://www.ubuntu.com/support) 
Current version of pixman: 0.30.2
	Before reporting problems, check http://wiki.x.org
	to make sure that you have the latest version.
Markers: (--) probed, (**) from config file, (==) default setting,
	(++) from command line, (!!) notice, (II) informational,
	(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(==) Log file: "/var/log/Xorg.0.log", Time: Sun Apr  3 20:31:06 2016
(==) Using system config directory "/usr/share/X11/xorg.conf.d"
(II) [KMS] Kernel modesetting enabled.
ubiquity-dm: set vars
ubiquity-dm: pam_open_session
ubiquity-dm: dm-scripts
ubiquity-dm: dbus
ubiquity-dm: dconf-service
ubiquity-dm: start frontend gtk_ui
ubiquity-dm: start greeter
initctl: UPSTART_SESSION isn't set in the environment. Unable to locate the Upstart instance.

(indicator-keyboard-service:2258): IBUS-CRITICAL **: ibus_bus_call_sync: assertion 'ibus_bus_is_connected (bus)' failed
Activating service name='org.a11y.atspi.Registry'
Successfully activated service 'org.a11y.atspi.Registry'
SpiRegistry daemon is running with well-known name - org.a11y.atspi.Registry

** (at-spi2-registryd:2429): WARNING **: Failed to register client: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name org.gnome.SessionManager was not provided by any .service files

** (at-spi2-registryd:2429): WARNING **: Unable to register client with session manager
The XKEYBOARD keymap compiler (xkbcomp) reports:
> Warning:          Compat map for group 2 redefined
>                   Using new definition
> Warning:          Compat map for group 3 redefined
>                   Using new definition
> Warning:          Compat map for group 4 redefined
>                   Using new definition
Errors from xkbcomp are not fatal to the X server

** (process:2245): CRITICAL **: volume_control_set_volume_internal: assertion '_tmp1_ == PA_CONTEXT_READY' failed

** (process:2245): WARNING **: volume-control.vala:403: unable to find Accounts path for user (null): GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name com.canonical.UnityGreeter was not provided by any .service files

** (unity-settings-daemon:2233): WARNING **: Unable to register client: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name org.gnome.SessionManager was not provided by any .service files

** (nm-applet:2270): CRITICAL **: nm_secret_agent_register: assertion 'priv->registered == FALSE' failed

** (unity-settings-daemon:2233): CRITICAL **: setup_bg: assertion 'manager->priv->bg == NULL' failed

(unity-settings-daemon:2233): keyboard-plugin-WARNING **: Unhandled settings change, key 'input-sources-switcher'

(unity-settings-daemon:2233): keyboard-plugin-WARNING **: Unhandled settings change, key 'bell-custom-file'

** (unity-settings-daemon:2233): CRITICAL **: setup_bg: assertion 'manager->priv->bg == NULL' failed

(unity-settings-daemon:2233): keyboard-plugin-WARNING **: Unhandled settings change, key 'input-sources-switcher'

(unity-settings-daemon:2233): keyboard-plugin-WARNING **: Unhandled settings change, key 'bell-custom-file'

(panel:2242): Gtk-CRITICAL **: gtk_widget_set_accel_path: assertion 'GTK_IS_ACCEL_GROUP (accel_group)' failed

(panel:2242): Gtk-CRITICAL **: gtk_widget_add_accelerator: assertion 'GTK_IS_ACCEL_GROUP (accel_group)' failed

(panel:2242): Gtk-CRITICAL **: gtk_widget_set_accel_path: assertion 'GTK_IS_ACCEL_GROUP (accel_group)' failed

(panel:2242): Gtk-CRITICAL **: gtk_widget_add_accelerator: assertion 'GTK_IS_ACCEL_GROUP (accel_group)' failed