I've recently installed a fresh version of Ubuntu 12.04.3 Desktop. At login screen, everything is black except for my mouse cursor and blinking underscore at top left. I can hear the Ubuntu startup drum sound and can enter desktop by simply entering my password.
I've noticed this starts happening after about the 4th or 5th reboot after install.
$ awk '/CRITICAL/ || /WARNING/' /var/log/lightdm/x-0-greeter.log ** (at-spi2-registryd:2210): 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:2210): WARNING **: Unable to register client with session manager [+0.14s] CRITICAL: g_error_free: assertion `error != NULL' failed [+0.17s] WARNING: IndicatorObject class does not have an accessible description. [+0.21s] WARNING: IndicatorObject class does not have an accessible description. [+0.56s] WARNING: invalid cast from `GtkMenuItem' to `IndicatorMenuItem' [+0.56s] WARNING: invalid cast from `GtkMenuItem' to `IndicatorMenuItem' [+0.56s] WARNING: invalid cast from `GtkMenuItem' to `IndicatorMenuItem' [+0.56s] WARNING: menubar.vala:561: Indicator object 0x83bde8 not in menubar [+0.56s] WARNING: Getting layout failed: GDBus.Error:org.freedesktop.DBus.Error.UnknownMethod: No such interface `com.canonical.dbusmenu' on object at path /com/canonical/indicator/users/menu [+0.80s] CRITICAL: ido_calendar_menu_item_set_date: assertion `IDO_IS_CALENDAR_MENU_ITEM(menuitem)' failed
I'm having trouble understanding these errors.
My graphics card is Intel HD 4600 integrated with Haswell CPU.
$ sudo lightdm --test-mode Failed to use bus name org.freedesktop.DisplayManager, do you have appropriate permissions?
Upon looking at
/etc/dbus-1/system.d/org.freedesktop.DisplayManager.conf I see:
<!-- Only root can own the service --> <policy user="root"> <allow own="org.freedesktop.DisplayManager"/> <allow send_destination="org.freedesktop.DisplayManager" send_interface="org.freedesktop.DisplayManager" send_member="AddSeat"/> </policy>
What's happening here? Root owns the service, yet I am asked if I have appropriate permissions when accessing as root.