简介
我用的系统是ubuntu16.04 lts，lts是长期更新的意思，所以有时候更新的话，会导致和NVIDIA驱动冲突，所以需要重新安装一下就可以了。
方法
首先得先进入tty1控制台，具体是在登录界面直接按ctrl+shift+F1，然后输入账号，密码登录进去。
然后关闭X-windows服务，不执行这步的话，直接安装会有提醒的
sudo service lightdm stop
然后可以安装了，我的驱动在Downloads文件夹下，一直没有删除。
cd Downloads/ sudo ./NVIDIA-Linux-x86_64-390.25.run
然后点击accept，然后按照如下操作
there appear to already be a driver installed on your system(version:390.25),As part of installing this driver(version:390.25).the existing dirver will be uninstalled.Are you sure want to continue 点击continue installation the distribution-provided pre-install script failed!, Are you sure want to be constiue 点击continue installation WARNING：Unable to find a suitable destination to install 32-bit compatibility libraries. Your system may not be set up for 32-bit compatibility. 32-bit compatibility files will not be installed; if you wish to install them, re-run the installation and set a valid directory with the --compat32-libdir option. 点击ok would you like to run the nvidia-xconfig utility to automatically update your X configuration file so that the NVIDIA X driver will be used when you restart X ? Any pre-existing X configuration file will be backed up 点击 NO Installation of the NVIDIA Accelerated Graphics Driver for Linux-x86_64(version:390.25) is now complete. Please update your XF86Config or xorg.conf file as appropriate;see the file /usr/share/doc/NVIDIA_GLX-1.0/README.txt for details. 点击OK
然后键入sudo reboot 重启就可以了