kodeman@kodeman-Aspire-5750G:/opt$ dpkg -l | grep nvidia
ii  nvidia-opencl-icd-331                 331.113-0ubuntu0.1                       amd64        NVIDIA OpenCL ICD
ii  nvidia-prime                          0.6.7                                    amd64        Tools to enable NVIDIA's Prime
ii  nvidia-settings                       331.20-0ubuntu8                          amd64        Tool for configuring the NVIDIA graphics driver
kodeman@kodeman-Aspire-5750G:/opt$