Cioa a tutti , vi espongo il problema:
Le barre del menu di Unity appena accendo il PC non appaiono.
Dopo aver fatto vari tentativi ho fatto l'avanzamento dalla versione 11.04 alla 12.04.2 LTS i686 , ma il problema non si è risolto.
Se invio dalla shell il comando: unity
ottengo una serie di errori, ma le barre appaiono e si possono utilizzare, tuttavia se riavvio il PC, automaticamente non appaiono all'avvio.
Se accedo tramite la sessione ospite non si verfica il problema.
Ho usata anche il comando: unity --reset ma non ho risolto il problema.

Dopo l'invio del comando unity --reset ottengo la risposta con errori:

codice:
WARNING: no current gconf profile set, assuming unity
WARNING: Unity currently default profile, so switching to metacity while resetting the values
unity-panel-service: nessun processo trovato
Checking if settings need to be migrated ...no
Checking if internal files need to be migrated ...no
Backend     : gconf
Integration : true
Profile     : unity
Adding plugins
Initializing core options...done
compiz (core) - Warn: failed to receive ConfigureNotify event on 0x1a00004

compiz (core) - Warn: failed to receive ConfigureNotify event on 0x2a00081

compiz (core) - Warn: failed to receive ConfigureNotify event on 0x2c000b6

compiz (core) - Warn: failed to receive ConfigureNotify event on 0x260017b

Initializing composite options...done
Initializing opengl options...done
Initializing decor options...done
Initializing vpswitch options...done
Initializing snap options...done
Initializing mousepoll options...done
Initializing resize options...done
Initializing place options...done
Initializing move options...done
Initializing wall options...done
Initializing grid options...done
Initializing session options...done
Initializing gnomecompat options...done
Initializing animation options...done
Initializing fade options...done
Initializing unitymtgrabhandles options...done
Initializing workarounds options...done
Initializing scale options...done
compiz (expo) - Warn: failed to bind image to texture
Initializing expo options...done
Initializing ezoom options...done

(compiz:5223): GConf-CRITICAL **: gconf_client_add_dir: assertion `gconf_valid_key (dirname, NULL)' failed
WARN  2013-06-09 15:18:17 unity.favorites FavoriteStoreGSettings.cpp:139 Unable to load GDesktopAppInfo for 'ubiquity-gtkui.desktop'
Initializing unityshell options...done
compiz (core) - Warn: unhandled ConfigureNotify on 0xc0009e!
compiz (core) - Warn: this should never happen. you should probably file a bug about this.
compiz (core) - Warn: unhandled ConfigureNotify on 0xc000a1!
compiz (core) - Warn: this should never happen. you should probably file a bug about this.
compiz (core) - Warn: unhandled ConfigureNotify on 0xc000a4!
compiz (core) - Warn: this should never happen. you should probably file a bug about this.
compiz (core) - Warn: unhandled ConfigureNotify on 0xc000a7!
compiz (core) - Warn: this should never happen. you should probably file a bug about this.
WARN  2013-06-09 15:18:18 unity.libindicator <unknown>:0 Desktop file '/usr/share/applications/libreoffice-writer.desktop' is using a deprecated format for its actions that will be dropped soon.
WARN  2013-06-09 15:18:18 unity.libindicator <unknown>:0 Desktop file '/usr/share/applications/libreoffice-calc.desktop' is using a deprecated format for its actions that will be dropped soon.
WARN  2013-06-09 15:18:18 unity.libindicator <unknown>:0 Desktop file '/usr/share/applications/libreoffice-impress.desktop' is using a deprecated format for its actions that will be dropped soon.
WARN  2013-06-09 15:18:18 unity <unknown>:0 Failed to fetch name: Interfaccia "org.ayatana.bamf.view" inesistente sull'oggetto nel percorso /org/ayatana/bamf/application0x95f3810
WARN  2013-06-09 15:18:18 unity <unknown>:0 Failed to fetch boolean: Interfaccia "org.ayatana.bamf.view" inesistente sull'oggetto nel percorso /org/ayatana/bamf/application0x95f3810
WARN  2013-06-09 15:18:18 unity <unknown>:0 Failed to fetch boolean: Interfaccia "org.ayatana.bamf.view" inesistente sull'oggetto nel percorso /org/ayatana/bamf/application0x95f3810
WARN  2013-06-09 15:18:18 unity <unknown>:0 Failed to fetch boolean: Interfaccia "org.ayatana.bamf.view" inesistente sull'oggetto nel percorso /org/ayatana/bamf/application0x95f3810
WARN  2013-06-09 15:18:18 unity <unknown>:0 Failed to fetch path: Interfaccia "org.ayatana.bamf.application" inesistente sull'oggetto nel percorso /org/ayatana/bamf/application0x95f3810
WARN  2013-06-09 15:18:18 unity <unknown>:0 Failed to fetch path: Interfaccia "org.ayatana.bamf.application" inesistente sull'oggetto nel percorso /org/ayatana/bamf/application0x95f3810
WARN  2013-06-09 15:18:18 unity <unknown>:0 Failed to fetch path: Interfaccia "org.ayatana.bamf.application" inesistente sull'oggetto nel percorso /org/ayatana/bamf/application0x95f3810
WARN  2013-06-09 15:18:18 unity <unknown>:0 Failed to fetch path: Interfaccia "org.ayatana.bamf.application" inesistente sull'oggetto nel percorso /org/ayatana/bamf/application0x95f3810
WARN  2013-06-09 15:18:18 unity <unknown>:0 Failed to fetch path: Interfaccia "org.ayatana.bamf.application" inesistente sull'oggetto nel percorso /org/ayatana/bamf/application0x95f3810
WARN  2013-06-09 15:18:18 unity <unknown>:0 Failed to fetch path: Interfaccia "org.ayatana.bamf.application" inesistente sull'oggetto nel percorso /org/ayatana/bamf/application0x95f3810
WARN  2013-06-09 15:18:18 unity <unknown>:0 Failed to fetch path: Interfaccia "org.ayatana.bamf.application" inesistente sull'oggetto nel percorso /org/ayatana/bamf/application0x95f3810
WARN  2013-06-09 15:18:18 unity <unknown>:0 Failed to fetch path: Interfaccia "org.ayatana.bamf.application" inesistente sull'oggetto nel percorso /org/ayatana/bamf/application0x95f3810
WARN  2013-06-09 15:18:19 unity <unknown>:0 Failed to fetch path: Interfaccia "org.ayatana.bamf.application" inesistente sull'oggetto nel percorso /org/ayatana/bamf/application0x95f3810
WARN  2013-06-09 15:18:19 unity <unknown>:0 Failed to fetch path: Interfaccia "org.ayatana.bamf.application" inesistente sull'oggetto nel percorso /org/ayatana/bamf/application0x95f3810
WARN  2013-06-09 15:18:19 unity <unknown>:0 Failed to fetch path: Interfaccia "org.ayatana.bamf.application" inesistente sull'oggetto nel percorso /org/ayatana/bamf/application0x95f3810
WARN  2013-06-09 15:18:19 unity <unknown>:0 Failed to fetch path: Interfaccia "org.ayatana.bamf.application" inesistente sull'oggetto nel percorso /org/ayatana/bamf/application0x95f3810
WARN  2013-06-09 15:18:19 unity <unknown>:0 Failed to fetch path: Interfaccia "org.ayatana.bamf.application" inesistente sull'oggetto nel percorso /org/ayatana/bamf/application0x95f3810
WARN  2013-06-09 15:18:19 unity <unknown>:0 Unable to fetch children: Interfaccia "org.ayatana.bamf.view" inesistente sull'oggetto nel percorso /org/ayatana/bamf/application0x95f3810

Initializing annotate options...done
Initializing blur options...done
Initializing clone options...done
Initializing colorfilter options...done
Initializing commands options...done
Initializing cube options...done
Initializing imgjpeg options...done
Initializing kdecompat options...done
Initializing mag options...done
Initializing neg options...done
Initializing obs options...done
Initializing opacify options...done
Initializing put options...done
Initializing resizeinfo options...done
Initializing ring options...done
Initializing rotate options...done
Initializing scaleaddon options...done
Initializing screenshot options...done
Initializing shift options...done
Initializing staticswitcher options...done
Initializing switcher options...done
Initializing thumbnail options...done
Initializing water options...done
Initializing winrules options...done
Initializing wobbly options...done
ERROR 2013-06-09 15:18:22 unity.glib-gobject <unknown>:0 g_object_unref: assertion `G_IS_OBJECT (object)' failed
Setting Update "main_menu_key"
Setting Update "run_key"
ERROR 2013-06-09 15:18:22 unity <unknown>:0 bamf_view_get_children: assertion `BAMF_IS_VIEW (view)' failed
ERROR 2013-06-09 15:18:22 unity <unknown>:0 bamf_view_get_children: assertion `BAMF_IS_VIEW (view)' failed
ERROR 2013-06-09 15:18:23 unity.glib-gobject <unknown>:0 g_object_set_qdata: assertion `G_IS_OBJECT (object)' failed
Sapreste aiutarmi? Grazie per la collaborazione.