How to Install Latest Nvidia Drivers on Ubuntu

因為UBUNTU 16.04 LTS 約每個月都要重灌nvidia驅動程式，所以註記一下重灌driver步驟：

本例為nvidia-415，但我比較常用390.87的驅動。


The latest Nvidia drivers are available on graphics-drivers PPA. This repository provides the latest drivers for your Ubuntu Desktop systems. This tutorial will help you to install the latest Nvidia drivers for your Ubuntu desktop using PPA.

Remove Old Nvidia Driver

The first step is to purge currently installed Nvidia drivers so that it does not conflict with the newer versions on your Ubuntu systems.

sudo apt-get purge nvidia*

Install Latest Nvidia Driver on Ubuntu

Now enable the graphics-drivers PPA to your system. Currently, it supports Ubuntu 18.10, 18.04 LTS, 16.04 LTS, and 14.04 LTS operating systems. Keep in mind that its still under testing phase.

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

Next, identify the installed graphics card model and recommended driver for that by running the following command:

ubuntu-drivers devices | grep "nvidia-driver"

driver   : nvidia-driver-390 - third-party free
driver   : nvidia-driver-415 - third-party free recommended
driver   : nvidia-driver-396 - third-party free

Then execute the below command to install recommended Nvidia graphics driver on your system.

sudo apt install nvidia-415

Verify Nvidia Driver

After installation reboot your system, So that your desktop load the new Nvidia driver. Now run below command to check Nvidia module.

lsmod | grep nvidia