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I have installed ubuntu 20.04 on my external drive. I have an Nvidia graphics card of "01:00.0 VGA compatible controller: NVIDIA Corporation GA107M [GeForce RTX 3050 Mobile] (rev a1)."I have tried installing and running the Nvidia driver many times but have not succeeded.

I was able to install the Nvidia driver through the Linux command. 

sudo apt install nvidia-driver-470

But when I tried to run Nvidia-semi then, it gave me an error -

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 also tried to switch to Nvidia drivers by selecting the additional driver's options in software and update, but it gave me the same error. I tried to install Nvidia driver 515 from the official Nvidia website but at the end of the installation process, it asked me to

An X.509 certificate containing the public signing key will be installed to /usr/share/Nvidia/Nvidia-mod sign-crt-E4B26CB6.der.
The SHA1 fingerprint of this certificate is:E4:B2:6C:B6:5C:AB:E7:CB:68:B5:15:6A:F9:F1:24:0B:7C:6E:47:D3.

This certificate must be added to a key database trusted by your kernel for the kernel to verify the module signature. I didn't find anywhere how to do this?

Could you please help me to install and run the driver successfully?

JAMSHAID
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Rohan Padalghare
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1 Answers1

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If you install Nvidia driver via Ubuntu package manager. You can follow this Nvidia official document

Or install Nvidia driver via runfile(use 515.48.07 for example):

sudo apt install curl build-essential
BASE_URL=https://us.download.nvidia.com/tesla
DRIVER_VERSION=515.48.07
curl -fSsl -O $BASE_URL/$DRIVER_VERSION/NVIDIA-Linux-x86_64-$DRIVER_VERSION.run
sudo sh NVIDIA-Linux-x86_64-515.48.07.run

After install driver and reboot the computer. You can check which kernel driver using device via lsmod | grep -E "nouveau|nvidia". If it is not use by Nvidia driver. You need disable nouveau follow up this step:

  1. Create a file at /etc/modprobe.d/blacklist-nouveau.conf with the following contents:
    blacklist nouveau
    options nouveau modeset=0
  1. Regenerate the kernel initramfs: sudo update-initramfs -u

Run reboot command and check driver again.

source:8.3. Disabling Nouveau

laudai
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  • Thank you for the solution. I have tried to install it via official documents, and it went smoothly, but I am still getting the same error.
    I also tried to install the commands you mentioned. However, it still asks me to "This certificate must be added to a key database trusted by your kernel for the kernel to verify the module signature."     – Rohan Padalghare Jul 21 '22 at 17:48
  • Maybe is secure boot issue ? I surfing keyword for "certificate nvidia driver secure boot" inspired by @Pilot6 and get this document. Check it if it is the answer. Signing the NVIDIA Kernel Module – laudai Jul 22 '22 at 04:56