slutb0x:/boot# apt-cache policy nvidia-kernel-source
nvidia-kernel-source:
  Installed: 1.0.9755-1
  Candidate: 1.0.9755-1
  Version table:
 *** 1.0.9755-1 0
        500 http://debian.mirror.rafal.ca unstable/non-free Packages
        100 /var/lib/dpkg/status
     1.0.8776-4 0
        500 http://debian.mirror.rafal.ca testing/non-free Packages