apt-cache policy nvidia-340
nvidia-340:
  Installé : (aucun)
  Candidat : 340.104-0ubuntu0.16.04.1
 Table de version :
     340.104-0ubuntu0.16.04.1 500
        500 http://fr.archive.ubuntu.com/ubuntu xenial-updates/restricted amd64 Packages
     340.102-0ubuntu0.16.04.1 500
        500 http://security.ubuntu.com/ubuntu xenial-security/restricted amd64 Packages
     340.96-0ubuntu3 500
        500 http://fr.archive.ubuntu.com/ubuntu xenial/restricted amd64 Packages