关于独立显卡笔记本安装显卡驱动及调节亮度

在网上参考了很多教程，很多都不通用，以我的笔记本电脑为例（光影精灵4_GTX1050Ti），整理了一下有效的教程

1. 将NVIDIA repository 加入你的 apt

wget https://developer.download.nvidia.com/compute/cuda/repos/ubuntu1804/x86_64/cuda-repo-ubuntu1804_10.0.130-1_amd64.deb
sudo dpkg -i cuda-repo-ubuntu1804_10.0.130-1_amd64.deb
sudo apt-key adv --fetch-keys https://developer.download.nvidia.com/compute/cuda/repos/ubuntu1804/x86_64/7fa2af80.pub
sudo apt update
wget http://developer.download.nvidia.com/compute/machine-learning/repos/ubuntu1804/x86_64/nvidia-machine-learning-repo-ubuntu1804_1.0.0-1_amd64.deb
sudo apt install ./nvidia-machine-learning-repo-ubuntu1804_1.0.0-1_amd64.deb
sudo apt update

2. 安装 NVIDIA Driver

ubuntu-drivers devices
sudo ubuntu-drivers autoinstall

若在安装期间遇到driver安装不完整的情况，所以重新再试一次：

sudo apt-get update 
sudo ubuntu-drivers autoinstall

安装完以后重新启动：

sudo reboot

测试一下是否安装成功：

 base) ➜  Frequent-use git:(master) nvidia-smi
Sun Aug 18 09:03:59 2019
+-----------------------------------------------------------------------------+
| NVIDIA-SMI 430.40       Driver Version: 430.40       CUDA Version: 10.1     |
|-------------------------------+----------------------+----------------------+
| GPU  Name        Persistence-M| Bus-Id        Disp.A | Volatile Uncorr. ECC |
| Fan  Temp  Perf  Pwr:Usage/Cap|         Memory-Usage | GPU-Util  Compute M. |
|===============================+======================+======================|
|   0  GeForce GTX 106...  Off  | 00000000:05:00.0  On |                  N/A |
| 29%   33C    P8     8W / 120W |    110MiB /  6077MiB |      0%      Default |
+-------------------------------+----------------------+----------------------+
 
+-----------------------------------------------------------------------------+
| Processes:                                                       GPU Memory |
|  GPU       PID   Type   Process name                             Usage      |
|=============================================================================|
|    0      1630      G   /usr/lib/xorg/Xorg                            39MiB |
|    0      2055      G   /usr/bin/gnome-shell                          68MiB |
+-----------------------------------------------------------------------------+

(这里声明一下，上面是我看另一个老哥的安装结果，我运行nvidia-smi的时候出错，但我的附加驱动显示已安装)

3.修改xorg.conf文件

1.先看一下有没有xorg.conf这个文件
cd /etc/X11
ls一下，若没有的话执行sudo nano xorg.conf
然后输入下面的内容：

Section "Screen"
	Identifier	"Default Screen"
	DefaultDepth	24
EndSection
Section "Module"
	Load	"glx"
EndSection
Section "Device"
	Identifier	"Default Device"
	Driver	"nvidia"
	Option	"NoLogo"	"True"
	Option "RegistryDwords" "EnableBrightnessControl=1"
EndSection

如果有的话在终端输入：

sudo nano /etc/X11/xorg.conf（注意大小写）打开该文件，把
Section “Device”
Identifier “Device0”
Driver “nvidia”
VendorName “NVIDIA Corporation”
EndSection
改成
Section “Device”
Identifier “Device0”
Driver “nvidia”
VendorName “NVIDIA Corporation”
Option “RegistryDwords” “EnableBrightnessControl=1”
EndSection
然后保存退出
重启后就可以调节亮度了
但暂时还无法通过键盘快捷键调节亮度，若后续找到可以使用的教程，我会补上

参考文献

【1】ubuntu 18.04 安装 nvidia drivers 430安装
【2】ubuntu安装nvidia显卡驱动后不能用快捷键调节亮度的解决办法