[Abandon] Votre session n'a même pas duré 10 secondes

Le problème est revenu sur mon gros PC suite à mon premier échec pour installer un Debian 8.1. J'ai ensuite tenté d'installer LMDE 2 Cinnamon sur ce PC et cette fenêtre d'erreur est revenu. Ensuite j'ai réinstallé LM 17.2 Cinnamon et même chose. J'ai fait un copier et coller du détail de cette fenêtre d'erreur:

syndaemon: aucun processus trouvé
/etc/mdm/Xsession: Beginning session setup...
localuser:hermes being added to access control list
Script for none started at run_im.
Script for auto started at run_im.
Script for default started at run_im.
Failed to connect to the VirtualBox kernel service
Failed to connect to the VirtualBox kernel service
Failed to connect to the VirtualBox kernel service
Failed to connect to the VirtualBox kernel service
Failed to connect to the VirtualBox kernel service
Script for none started at run_im.
Script for auto started at run_im.
Script for default started at run_im.
GNOME_KEYRING_CONTROL=/run/user/1000/keyring-hfgVay
SSH_AUTH_SOCK=/run/user/1000/keyring-hfgVay/ssh
GNOME_KEYRING_CONTROL=/run/user/1000/keyring-hfgVay
SSH_AUTH_SOCK=/run/user/1000/keyring-hfgVay/ssh
GPG_AGENT_INFO=/run/user/1000/keyring-hfgVay/gpg:0:1
GNOME_KEYRING_CONTROL=/run/user/1000/keyring-hfgVay
SSH_AUTH_SOCK=/run/user/1000/keyring-hfgVay/ssh
GPG_AGENT_INFO=/run/user/1000/keyring-hfgVay/gpg:0:1
GNOME_KEYRING_CONTROL=/run/user/1000/keyring-hfgVay
SSH_AUTH_SOCK=/run/user/1000/keyring-hfgVay/ssh
GPG_AGENT_INFO=/run/user/1000/keyring-hfgVay/gpg:0:1
=== xinerama setup Configuration ===
  Clone: false
  Output: Dell Inc. 22" attached to DVI-I-1
     status: on
     width: 1680
     height: 1050
     rate: 60
     primary: false
     position: 0 0
  Output: (null) attached to HDMI-1
     status: off
     width: -1
     height: -1
     rate: -1
     primary: false
     position: -1 -1
  Output: (null) attached to VGA-1
     status: off
     width: -1
     height: -1
     rate: -1
     primary: false
     position: -1 -1
=== Applying Configuration Configuration ===
  Clone: false
  Output: Dell Inc. 22" attached to DVI-I-1
     status: on
     width: 1680
     height: 1050
     rate: 60
     primary: true
     position: 0 0
  Output: (null) attached to HDMI-1
     status: off
     width: -1
     height: -1
     rate: -1
     primary: false
     position: -1 -1
  Output: (null) attached to VGA-1
     status: off
     width: -1
     height: -1
     rate: -1
     primary: false
     position: -1 -1
conky: aucun processus trouvé
Conky: use_spacer should have an argument of left, right, or none.  'yes' seems to be some form of 'true', so defaulting to right.
Conky: desktop window (252) is root window
Conky: window type - normal
Conky: drawing to created window (0x2200002)
Conky: drawing to double buffer
Cjs-Message: JS LOG: About to start Cinnamon

** (nemo:3591): WARNING **: Can not determine workarea, guessing at layout
nm-applet-Message: using fallback from indicator to GtkStatusIcon
St-Message: cogl npot texture sizes SUPPORTED
Window manager warning: Trying to remove non-existent custom keybinding "magnifier-zoom-in".
Window manager warning: Trying to remove non-existent custom keybinding "magnifier-zoom-out".
Cjs-Message: JS LOG: Cinnamon started at Mon Aug 10 2015 19:09:11 GMT-0400 (EDT)
Cjs-Message: JS LOG: network applet: Cannot find connection for active (or connection cannot be read)
failed to create drawable

(cinnamon-settings-daemon:3520): power-plugin-CRITICAL **: abs_to_percentage: assertion 'max > min' failed

(cinnamon-settings-daemon:3520): GLib-GIO-CRITICAL **: g_dbus_method_invocation_return_gerror: assertion 'error != NULL' failed

(cinnamon-settings-daemon:3520): GLib-CRITICAL **: g_error_free: assertion 'error != NULL' failed
Cjs-Message: JS LOG: network applet: Found connection for active
Initializing folder-color-switcher extension...
cinnamon-session[3284]: WARNING: Playing logout sound '/usr/share/mint-artwork-cinnamon/sounds/logout.ogg'
cinnamon-session[3284]: WARNING: Finished playing logout sound
cinnamon-session[3284]: WARNING: Resuming logout sequence...
Session ending - shutting down Cinnamon

(cinnamon-settings-daemon:3520): GLib-CRITICAL **: Source ID 35 was not found when attempting to remove it

(cinnamon-settings-daemon:3520): wacom-plugin-CRITICAL **: csd_wacom_device_get_device_type: assertion 'CSD_IS_WACOM_DEVICE (device)' failed

(cinnamon-settings-daemon:3520): wacom-plugin-CRITICAL **: csd_wacom_device_get_device_type: assertion 'CSD_IS_WACOM_DEVICE (device)' failed

(cinnamon-settings-daemon:3520): wacom-plugin-CRITICAL **: csd_wacom_device_get_device_type: assertion 'CSD_IS_WACOM_DEVICE (device)' failed

(cinnamon-settings-daemon:3520): wacom-plugin-CRITICAL **: csd_wacom_device_get_device_type: assertion 'CSD_IS_WACOM_DEVICE (device)' failed

(cinnamon-settings-daemon:3520): wacom-plugin-CRITICAL **: csd_wacom_device_get_device_type: assertion 'CSD_IS_WACOM_DEVICE (device)' failed

(cinnamon-settings-daemon:3520): wacom-plugin-CRITICAL **: csd_wacom_device_get_device_type: assertion 'CSD_IS_WACOM_DEVICE (device)' failed

(cinnamon-settings-daemon:3520): wacom-plugin-CRITICAL **: csd_wacom_device_get_device_type: assertion 'CSD_IS_WACOM_DEVICE (device)' failed

(cinnamon-settings-daemon:3520): wacom-plugin-CRITICAL **: csd_wacom_device_get_device_type: assertion 'CSD_IS_WACOM_DEVICE (device)' failed
Window manager warning: CurrentTime used to choose focus window; focus window may not be correct.
Window manager warning: Got a request to focus the no_focus_window with a timestamp of 0.  This shouldn't happen!
[1439248150,000,xklavier.c:xkl_engine_start_listen/]  The backend does not require manual layout management - but it is provided by the application

Présentement Debian 8.1 bureau Cinnamon semble s'installer avec succès... en espérant que ce problème ne revienne pas... à suivre!

[Abandon] Votre session n'a même pas duré 10 secondes