Install nvidia-smi and cuda from zero

Now, you don't even have nvidia-smi

• developer.nvidia.com/cuda-download
• From archives, choose a version you like
• select system and run .deb or .run

the .deb way sometimes failed in the last step.

If so, try this: https://blog.csdn.net/u011119817/article/details/100520669

ubuntu-drivers devices
sudo ubuntu-drivers auto-install
sudo reboot

据我所知有几种方法，以下每一行是一个方法

• 系统应用程序 Softwares & Updates 直接下载驱动
• 进入文本界面，关闭图形化服务，运行 .run
• sudo ubuntu-drivers auto-install