Check if it works

nvidia-smi

# and/or
grep -i "x driver" /var/log/Xorg.0.log

Install

sudo add-apt-repository ppa:graphics-drivers/ppa
sudo apt update
sudo apt upgrade

ubuntu-drivers devices

Look for 'recommanded'

sudo ubuntu-drivers autoinstall

# or (change number if needed)
sudo apt install nvidia-415

Old - Archive

Drivers

sudo apt-get install nvidia-opencl-icd-378 python-pyopencl python3-pyopencl

Nvidia GTX 1050 Ti - Avril 2017 :

• FAIL with : 375, 381
• OK with : 378

PPA

Should work... doesn't. (December 2016)

sudo add-apt-repository ppa:graphics-drivers/ppa
sudo apt-get update
sudo apt-get install nvidia-375

Works! (Feb 2017)

sudo add-apt-repository ppa:graphics-drivers/ppa
sudo apt-get update
sudo apt-get install nvidia-378

Nvidia Installer

• Download NVIDIA-Linux-x86_64-375.10.run (search yours here: http://www.nvidia.com/Download/index.aspx)

• sudo apt-get purge nvidia-* && sudo apt-get autoremove

• Reboot Ubuntu, in Recovery Mode

• 'Activate Network' (to mount the hardrive in read-write mode), then 'Root'

• Run NVIDIA-Linux-x86_64-375.10.run
  • Accept License
  • Accept the warning, it's a fake Warning... really
  • No 32-bit compatibility (because it didn't work for me)
  • Yes, update X configuration
  • Ok!
• Reboot
• Install pyOpenCL, it should work