NVIDIA-SMI has failed because it couldn't communicate with the NVIDIA driver ...

Graphics driver could not find the solution: effective pro-test

step1:sudo apt-get install dkms

step2:   sudo dkms install -m nvidia -v 390.129

nvidia-smi

390.129 replaced own graphics version View cd / usr / src view

Tesla graphics version 390.129

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Origin www.cnblogs.com/bob-jianfeng/p/11505885.html