Ubuntu18.04: NVIDIA-SMI has failed because it couldn't communicate with the NVIDIA driver. Make sure that the latest NVIDIA driver is installed and running.

I previously had one Nvidia 1080Ti GPU installed on my ubuntu18.04. Today, I install another 1080Ti, the command nvidia-smi doesn’t work and throw a NVIDIA driver crash.

I uninstall previous driver 390 and install the recommended driver nvidia-driver-418

(base) user@user-System-Product-Name:~ nvidia-smi NVIDIA-SMI has failed because it couldn't communicate with the NVIDIA driver. Make sure that the latest NVIDIA driver is installed and running. (base) user@user-System-Product-Name:~ dpkg -l | grep nvidia
ii libnvidia-cfg1-418:amd64 418.56-0ubuntu0~gpu18.04.1 amd64 NVIDIA binary OpenGL/GLX configuration library
ii libnvidia-common-418 418.56-0ubuntu0~gpu18.04.1 all Shared files used by the NVIDIA libraries
rc libnvidia-compute-390:i386 390.116-0ubuntu0.18.04.1 i386 NVIDIA libcompute package
ii libnvidia-compute-418:amd64 418.56-0ubuntu0~gpu18.04.1 amd64 NVIDIA libcompute package
ii libnvidia-compute-418:i386 418.56-0ubuntu0~gpu18.04.1 i386 NVIDIA libcompute package
ii libnvidia-decode-418:amd64 418.56-0ubuntu0~gpu18.04.1 amd64 NVIDIA Video Decoding runtime libraries
ii libnvidia-decode-418:i386 418.56-0ubuntu0~gpu18.04.1 i386 NVIDIA Video Decoding runtime libraries
ii libnvidia-encode-418:amd64 418.56-0ubuntu0~gpu18.04.1 amd64 NVENC Video Encoding runtime library
ii libnvidia-encode-418:i386 418.56-0ubuntu0~gpu18.04.1 i386 NVENC Video Encoding runtime library
ii libnvidia-fbc1-418:amd64 418.56-0ubuntu0~gpu18.04.1 amd64 NVIDIA OpenGL-based Framebuffer Capture runtime library
ii libnvidia-fbc1-418:i386 418.56-0ubuntu0~gpu18.04.1 i386 NVIDIA OpenGL-based Framebuffer Capture runtime library
ii libnvidia-gl-418:amd64 418.56-0ubuntu0~gpu18.04.1 amd64 NVIDIA OpenGL/GLX/EGL/GLES GLVND libraries and Vulkan ICD
ii libnvidia-gl-418:i386 418.56-0ubuntu0~gpu18.04.1 i386 NVIDIA OpenGL/GLX/EGL/GLES GLVND libraries and Vulkan ICD
ii libnvidia-ifr1-418:amd64 418.56-0ubuntu0~gpu18.04.1 amd64 NVIDIA OpenGL-based Inband Frame Readback runtime library
ii libnvidia-ifr1-418:i386 418.56-0ubuntu0~gpu18.04.1 i386 NVIDIA OpenGL-based Inband Frame Readback runtime library
ii nvidia-compute-utils-418 418.56-0ubuntu0~gpu18.04.1 amd64 NVIDIA compute utilities
ii nvidia-dkms-418 418.56-0ubuntu0~gpu18.04.1 amd64 NVIDIA DKMS package
ii nvidia-driver-418 418.56-0ubuntu0~gpu18.04.1 amd64 NVIDIA driver metapackage
ii nvidia-kernel-common-418 418.56-0ubuntu0~gpu18.04.1 amd64 Shared files used with the kernel module
ii nvidia-kernel-source-418 418.56-0ubuntu0~gpu18.04.1 amd64 NVIDIA kernel source package
ii nvidia-prime 0.8.8.2 all Tools to enable NVIDIA’s Prime
ii nvidia-settings 418.56-0ubuntu0~gpu18.04.1 amd64 Tool for configuring the NVIDIA graphics driver
ii nvidia-utils-418 418.56-0ubuntu0~gpu18.04.1 amd64 NVIDIA driver support binaries
ii xserver-xorg-video-nvidia-418 418.56-0ubuntu0~gpu18.04.1 amd64 NVIDIA binary Xorg driver
(base) user@user-System-Product-Name:~ $ lspci | grep -i vga
00:02.0 VGA compatible controller: Intel Corporation Device 3e92
01:00.0 VGA compatible controller: NVIDIA Corporation GP102 [GeForce GTX 1080 Ti] (rev a1)
02:00.0 VGA compatible controller: NVIDIA Corporation GP102 [GeForce GTX 1080 Ti] (rev a1)