Ask Ubuntu Asked by Malig on November 19, 2021
I followed the additional drivers prompt to install nvidia 440 drivers, they do show as installed. However the SMI output shows that it can’t connect and acts as if it is either not installed or not running. prime-select query shows it is set to nvidia and i did attempt to swap the prime select to intel and then back to nvidia and ran a full reboot without any fix to the problem.
dpkg output for nvidia shows I have everything.
ii libnvidia-cfg1-440:amd64 440.100-0ubuntu0.20.04.1 amd64 NVIDIA binary OpenGL/GLX configuration library
ii libnvidia-common-440 440.100-0ubuntu0.20.04.1 all Shared files used by the NVIDIA libraries
ii libnvidia-compute-440:amd64 440.100-0ubuntu0.20.04.1 amd64 NVIDIA libcompute package
ii libnvidia-compute-440:i386 440.100-0ubuntu0.20.04.1 i386 NVIDIA libcompute package
ii libnvidia-decode-440:amd64 440.100-0ubuntu0.20.04.1 amd64 NVIDIA Video Decoding runtime libraries
ii libnvidia-decode-440:i386 440.100-0ubuntu0.20.04.1 i386 NVIDIA Video Decoding runtime libraries
ii libnvidia-encode-440:amd64 440.100-0ubuntu0.20.04.1 amd64 NVENC Video Encoding runtime library
ii libnvidia-encode-440:i386 440.100-0ubuntu0.20.04.1 i386 NVENC Video Encoding runtime library
ii libnvidia-extra-440:amd64 440.100-0ubuntu0.20.04.1 amd64 Extra libraries for the NVIDIA driver
ii libnvidia-fbc1-440:amd64 440.100-0ubuntu0.20.04.1 amd64 NVIDIA OpenGL-based Framebuffer Capture runtime library
ii libnvidia-fbc1-440:i386 440.100-0ubuntu0.20.04.1 i386 NVIDIA OpenGL-based Framebuffer Capture runtime library
ii libnvidia-gl-440:amd64 440.100-0ubuntu0.20.04.1 amd64 NVIDIA OpenGL/GLX/EGL/GLES GLVND libraries and Vulkan ICD
ii libnvidia-gl-440:i386 440.100-0ubuntu0.20.04.1 i386 NVIDIA OpenGL/GLX/EGL/GLES GLVND libraries and Vulkan ICD
ii libnvidia-ifr1-440:amd64 440.100-0ubuntu0.20.04.1 amd64 NVIDIA OpenGL-based Inband Frame Readback runtime library
ii libnvidia-ifr1-440:i386 440.100-0ubuntu0.20.04.1 i386 NVIDIA OpenGL-based Inband Frame Readback runtime library
ii nvidia-compute-utils-440 440.100-0ubuntu0.20.04.1 amd64 NVIDIA compute utilities
ii nvidia-dkms-440 440.100-0ubuntu0.20.04.1 amd64 NVIDIA DKMS package
ii nvidia-driver-440 440.100-0ubuntu0.20.04.1 amd64 NVIDIA driver metapackage
ii nvidia-kernel-common-440 440.100-0ubuntu0.20.04.1 amd64 Shared files used with the kernel module
ii nvidia-kernel-source-440 440.100-0ubuntu0.20.04.1 amd64 NVIDIA kernel source package
ii nvidia-prime 0.8.14 all Tools to enable NVIDIA's Prime
ii nvidia-settings 440.64-0ubuntu1 amd64 Tool for configuring the NVIDIA graphics driver
ii nvidia-utils-440 440.100-0ubuntu0.20.04.1 amd64 NVIDIA driver support binaries
ii screen-resolution-extra 0.18build1 all Extension for the nvidia-settings control panel
ii xserver-xorg-video-nvidia-440 440.100-0ubuntu0.20.04.1 amd64 NVIDIA binary Xorg driver
On attempting to run nvidia-settings I get
ERROR: NVIDIA driver is not loaded
ERROR: Unable to load info from any available system
(nvidia-settings:1791): GLib-GObject-CRITICAL **: 01:18:05.602: g_object_unref: assertion 'G_IS_OBJECT (object)' failed
Spent a while researching this before asking but I determined the best methodology was likely going to be purging all nvidia driver files via
sudo apt remove --purge '^nvidia-.*'
and then following CLI installation
sudo ubuntu-drivers autoinstall
sudo apt install nvidia-driver-440
Once this was complete I ran nvidia-settings again and actually got the desired output rather than piles of errors stating the driver could not be found.
+-----------------------------------------------------------------------------+
| NVIDIA-SMI 440.100 Driver Version: 440.100 CUDA Version: 10.2 |
|-------------------------------+----------------------+----------------------+
| GPU Name Persistence-M| Bus-Id Disp.A | Volatile Uncorr. ECC |
| Fan Temp Perf Pwr:Usage/Cap| Memory-Usage | GPU-Util Compute M. |
|===============================+======================+======================|
| 0 GeForce RTX 2060 Off | 00000000:01:00.0 On | N/A |
| N/A 51C P5 14W / N/A | 467MiB / 5934MiB | 23% Default |
+-------------------------------+----------------------+----------------------+
Answered by Malig on November 19, 2021
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