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I have installed Nvidia GeForce 840M proprietary drivers by using the following command:

sudo apt install nvidia-driver-510

I faced no problem in installing it. After rebooting I tried to run the following command:

nvidia-semi

to check if its working or not. It shows,

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

Can anyone help what might be the problem?

Pankaj Chauhan
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  • Let the ubuntu-drivers select the driver your hardware can use, instead of just picking the latest driver. See which one with ubuntu-drivers list then use the ubuntu-drivers install command.Clean out the 510 driver before the install. – ubfan1 Jun 23 '22 at 15:27
  • @ubfan1 can you recommend the command or link to the procedure to do that? – Pankaj Chauhan Jun 24 '22 at 20:16
  • See https://askubuntu.com/questions/449693/how-to-change-graphic-card-driver-using-ubuntu-drivers or search this site for ubuntu-drivers. The Software and Updates program has a tab, Additional Drivers, which will also let you choose the "recommended" driver. – ubfan1 Jun 24 '22 at 21:27

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