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I have Ubuntu 14.10 I cannot purge, or reinstall nvidia-331 and this seems to be destroying my computer. This is what happens when I put in sudo apt-get purge nvidia* sudo apt-get install nvidia-331

Removing nvidia-331 (331.113-0ubuntu1~xedgers14.04.1) ...stop: Unknown instance: 
userdel: user nvidia-persistenced is currently used by process 1486
dpkg: error processing package nvidia-331 (--remove):
 subprocess installed post-removal script returned error exit status 8
Errors were encountered while processing:
 nvidia-331
E: Sub-process /usr/bin/dpkg returned an error code (1).

Also I can not change drivers and when I try there is no error message it just sends me back to the old driver like I did not try to change the drivers.

Max
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1 Answers1

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You must try change the graphics drivers through the Ubuntu CLI.

Switch on your computer.

Press and hold the Shift key, which will bring up the Grub menu.

Select the line which starts with Advanced options.

Select the line ending with recovery mode.

Your computer should display a menu with a number of options.

Select the line ending with Drop to root shell prompt. (netroot) or (network) - (root)

Run in the terminal:

mount -o remount,rw /
mount --all

Now run:

apt-get purge nvidia*
apt-get install nvidia-331
kyodake
  • 15,401
  • would this work for my last question as well? the very first step ( 0) ) from the solution proposed in the only answer posted to my question fails with a similar error as reported here! the only difference is that I don't get the phrase Unknown instance: userdel: user nvidia-persistenced is currently used by process 1486 in my error: https://askubuntu.com/questions/1365631/nvidia-340-driver-on-ubuntu-20-04 thank you! – velenos14 Sep 26 '21 at 21:20