chris@chris-pc:~$ apt-cache policy nvidia-361
nvidia-361:
  Installiert:           367.57-0ubuntu0.16.04.1
  Installationskandidat: 367.57-0ubuntu0.16.04.1
  Versionstabelle:
 *** 367.57-0ubuntu0.16.04.1 500
        500 http://de.archive.ubuntu.com/ubuntu xenial-updates/restricted amd64 Packages
        500 http://security.ubuntu.com/ubuntu xenial-security/restricted amd64 Packages
        100 /var/lib/dpkg/status
     361.42-0ubuntu2 500
        500 http://de.archive.ubuntu.com/ubuntu xenial/restricted amd64 Packages