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[Linux]Uncle_Sam

Graveur matshita uj-841s + K3B

Bonjour,
J'ai récemment fait l'acquisition d'un Toshiba Satellite A100 et installé la 6.10 de la Ubuntu, la suivant depuis 2 ans.
Tout fonctionne bien, mais, lorsque j'ai voulu graver mon premier cd avec K3B, impossible.
Il me dit de lancer k3bsetup2, chose que je fait et apparement, il n'arrive pas à reconnaitre "vraiment" mon lecteur-graveur.

matthieu@sam-port:~$ sudo k3bsetup
X Error: BadDevice, invalid or uninitialized input device 169
  Major opcode:  147
  Minor opcode:  3
  Resource id:  0x0
Failed to open device
X Error: BadDevice, invalid or uninitialized input device 169
  Major opcode:  147
  Minor opcode:  3
  Resource id:  0x0
Failed to open device
X Error: BadDevice, invalid or uninitialized input device 169
  Major opcode:  147
  Minor opcode:  3
  Resource id:  0x0
Failed to open device
X Error: BadDevice, invalid or uninitialized input device 169
  Major opcode:  147
  Minor opcode:  3
  Resource id:  0x0
Failed to open device
Session management error: Authentication Rejected, reason : None of the authentication protocols specified are supported and host-based authentication failed
Link points to "/tmp/ksocket-root"
Link points to "/tmp/kde-root"
X Error: BadDevice, invalid or uninitialized input device 169
  Major opcode:  147
  Minor opcode:  3
  Resource id:  0x0
Failed to open device
X Error: BadDevice, invalid or uninitialized input device 169
  Major opcode:  147
  Minor opcode:  3
  Resource id:  0x0
Failed to open device
Session management error: Authentication Rejected, reason : None of the authentication protocols specified are supported and host-based authentication failed
kbuildsycoca running...
kcmshell (kdelibs): WARNING: Could not find module 'k3bsetup2'.

Quelqu'un aurait une idée de quoi faire ?