kupe@matahourua:~$ dpkg -l | grep -i nvidia
ii  bbswitch-dkms                                               0.7-2ubuntu1                               amd64        Interface for toggling the power on nVidia Optimus video cards
rc  libcuda1-340                                                340.96-0ubuntu0.15.10.1                    amd64        NVIDIA CUDA runtime library
ii  libcuda1-352                                                352.63-0ubuntu0.15.10.1                    amd64        NVIDIA CUDA runtime library
ii  nvidia-352                                                  352.63-0ubuntu0.15.10.1                    amd64        NVIDIA binary driver - version 352.63
ii  nvidia-opencl-icd-352                                       352.63-0ubuntu0.15.10.1                    amd64        NVIDIA OpenCL ICD
ii  nvidia-prime                                                0.8.1                                      amd64        Tools to enable NVIDIA's Prime
ii  nvidia-settings                                             352.21-0ubuntu1                            amd64        Tool for configuring the NVIDIA graphics driver
rc  primus                                                      0~20150328-1                               amd64        client-side GPU offloading for NVIDIA Optimus
kupe@matahourua:~$