I just blacklisted nouveau, but I see that it is still being used. Would someone please help me understand this?

My new installation of 18.10 would freeze when logging in. To resolve this, I blacklisted nouveau in grub by updating /etc/default/grub with

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash modprobe.blacklist=nouveau"

(The solution was from NMI watchdog: BUG: soft lockup - CPU#2 stuck for 23s!, which was the issue had I experienced.)

I am glad that I am now able to successfully login, but I see that Nouveau is still being used, and this is confusing.

I thought I just blacklisted it, so why do I see it as active in Software and Updates?

What does the line modprobe.blacklist=nouveau exactly do? (Perhaps I misunderstand it).

Are there any disadvantages of adding modprobe.blacklist=nouveau to grub?

enter image description here


1 Answer 1


Possibly, there is a conflict between the open-source driver with that of the graphic card from Nvidia. I will write down the solution that worked for me, on a Lenovo ThinkPad P53 when installing Ubuntu 20.04 LTS, I faced some issues.

Follow the steps written below:

  1. Boot to Ubuntu, but before you login in to Ubuntu, press Cntrl+Alt+F2
  2. run the following command:

         sudo nano /etc/modprobe.d/blacklist-nouveau.conf
  3. add the 2 following lines, save & exit

         blacklist nouveau
         options nouveau modeset=0
  4. run the following command

         sudo update-initramfs -u

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.