旌宇显卡，亲测有效

For NVidia 340 Graphic Card:

$ sudo apt-get update
$ sudo apt-get install nvidia-current nvidia-settings
$ sudo ubuntu-drivers devices
    == /sys/devices/pci0000:00/0000:00:03.2/0000:4d:00.0 ==
    modalias : pci:v000010DEd00000A65sv00000000sd00000000bc03sc00i00
    vendor   : NVIDIA Corporation
    model    : GT218 [GeForce 210]
    driver   : xserver-xorg-video-nouveau - distro free builtin
    driver   : nvidia-304 - distro non-free
    driver   : nvidia-340 - distro non-free recommended

driver : nvidia-340 - distro non-free recommended
$ sudo apt-get install nvidia-340 nvidia-prime nvidia-settings
Now I have an available screen:

20180327-nvidia-driver-screen.png

GRAPHIC CARD 显卡

[goooood]
// For NVidia 340 Graphic Card.
$ sudo apt-get update
$ sudo apt-get install nvidia-current nvidia-settings
$ sudo ubuntu-drivers devices
    == /sys/devices/pci0000:00/0000:00:03.2/0000:4d:00.0 ==
    modalias : pci:v000010DEd00000A65sv00000000sd00000000bc03sc00i00
    vendor   : NVIDIA Corporation
    model    : GT218 [GeForce 210]
    driver   : xserver-xorg-video-nouveau - distro free builtin
    driver   : nvidia-304 - distro non-free
    driver   : nvidia-340 - distro non-free recommended
$ sudo apt-get install nvidia-340 nvidia-prime nvidia-settings

Try 1: 其他网上的方式

对于最新的Nvidia二进制驱动：
sudo add-apt-repository ppa:ubuntu-x-swat/x-updates
sudo apt-get update
sudo apt-get install nvidia-current nvidia-current-modaliases nvidia-settings

对于最新的ATI/AMD二进制驱动：
sudo add-apt-repository ppa:ubuntu-x-swat/x-updates
sudo apt-get update
sudo apt-get install fglrx

Try 2: Ubuntu系列切换Intel和NVIDIA显卡（我在Linux显卡上遇到的坑）

https://segmentfault.com/a/1190000009269284
$ sudo ubuntu-drivers devices
$ sudo apt-get install nvidia-340 nvidia-prime nvidia-settings