Ubuntu-fr

dav24

plusieurs erreurs dans mon xsession-errors

Bonjour a tous!

Je viens d'installer il y a une semaine la dernirèe version d'ubuntu à quoi j'ai ajouté xfce en windows manager. Cependant, j'ai plusieurs erreurs qui sont apparues et après de nombreuses recherches infructueuses et plusieurs manip essayées, cela ne change rien. Voici le contenu de mon xsession-errors:

/etc/gdm/PreSession/Default: Registering your session with wtmp and utmp
/etc/gdm/PreSession/Default: running: /usr/bin/X11/sessreg -a -w /var/log/wtmp -u /var/run/utmp -x "/var/lib/gdm/:0.Xservers" -h "" -l ":0" "dav24"
/etc/gdm/Xsession: Beginning session setup...
/usr/bin/startxfce4: X server already running on display :0
esd: Esound sound daemon already running or stale UNIX socket
/tmp/.esd-1000/socket
This socket already exists indicating esd is already running.
Exiting...
_IceTransTransNoListen: unable to find transport: tcp
_IceTransmkdir: ERROR: euid != 0,directory /dev/X will not be created.
_IceTransmkdir: ERROR: Cannot create /dev/X
_IceTransPTSOpenServer: mkdir(/dev/X) failed, errno = 13
_IceTransOpen: transport open failed for pts/dav-linux:
_IceTransMakeAllCOTSServerListeners: failed to open listener for pts
_IceTransISCOpenServer: Protocol is not supported by a ISC connection
_IceTransOpen: transport open failed for isc/dav-linux:
_IceTransMakeAllCOTSServerListeners: failed to open listener for isc
_IceTransSCOOpenServer: Protocol is not supported by a SCO connection
_IceTransOpen: transport open failed for sco/dav-linux:
_IceTransMakeAllCOTSServerListeners: failed to open listener for sco

** (xfwm4:9977): WARNING **: The display does not support the XComposite extension.
** (xfwm4:9977): WARNING **: Compositing manager disabled.

xscreensaver: 19:29:32: 0: unrecognised ClientMessage "_GTK_LOAD_ICONTHEMES" received
xscreensaver: 19:29:32: 0: for window 0x600001 (xscreensaver)

(gnome-terminal:9985): Gtk-CRITICAL **: gtk_accel_label_set_accel_closure: assertion `gtk_accel_group_from_accel_closure (accel_closure) != NULL' failed
(gnome-terminal:9985): Gtk-CRITICAL **: gtk_accel_label_set_accel_closure: assertion `gtk_accel_group_from_accel_closure (accel_closure) != NULL' failed

xscreensaver: 19:29:51: 0: unrecognised ClientMessage "_GTK_LOAD_ICONTHEMES" received
xscreensaver: 19:29:51: 0: for window 0x600001 (xscreensaver)

De plus, j'ai remarqué que lorsque je tape du texte, un messa récurrent apparait dans la console :

attempt to put segment in horiz list twice

si quelqu'un avait déjà eu ce genre problème, merci de bien vouloir me répondre...

merciii