1.UEFI禁用secure boot（我的系统是win10主系统，引导ubuntu，安装驱动前电脑存在win10 uefi引导问题）
- Make sure the "OS Type" is "Windows UEFI"
- Enter "Key Management"
- Select "Clear Secure Boot keys" (You will have the option "Install default Secure Boot keys" to restore the default keys after you cleared the Secure Boot
After you cleared the Secure Boot Keys, Secure Boot will be automatically disabled. You can set the OS Type to Other OS now.
(第一点可以忽略。。)
2.进入root权限并sudo add-apt-repository ppa:graphics-drivers/ppa
3.出现Error:retrieving gpg key timed out.
4.根据https://www.jianshu.com/p/e2a15336f174教程，进入https://launchpad.net/~graphics-drivers/+archive/ubuntu/ppa手动添加ppa
在ppa源文件末尾添加相关内容后点击保存出现以下警告
在sudo apt-get upgrade时出现“E:dpkg被中断，您必须手工运行 ‘sudo dpkg --configure -a’解决此问题”，输入sudo rm /var/lib/dpkg/updates/*，再输入sudo apt-get update，以及sudo apt-get upgrade
5.输入ubuntu-drivers devices //查看可安装的驱动列表（选择recommended那项进行安装）
6.sudo apt install nvidia-driver-430
期间出现“不能连接到cn.archive.ubuntu.com:http:[IP:91.189.91.26 80]”
E:有几个软件包无法下载，要不运行……试试？
7.到了第二天换了一个网络再次输入sudo apt install nvidia-driver-430
8.输入sudo reboot 重启，重启后感受到桌面分辨率明显变化，输入nvidia-smi，nvidia-settings均有效。
