Ubuntu – Blacklisting Nouveau not working on Ubuntu 14.04


I know there is plenty of documentation on blacklisting the Nouveau driver. However the normal methods are not working for me. I tried adding the below lines in the /etc/modprobe.d/blacklist.conf file, however this does not work. Nouveau still gets loaded anyway.

blacklist nouveau
blacklist lbm-nouveau
options nouveau modeset=0
alias nouveau off
alias lbm-nouveau off

I tried to disable the kernel modules using this command:

echo options nouveau modeset=0 | sudo tee -a /etc/modprobe.d/nouveau-kms.conf

followed by:

update-initramfs -u

but it doesn't work. Nouveau still gets loaded anyway.

Best Answer

You may need to edit grub to prevent the kernel from ever loading nouveau at boot. Run the following commands:

cp /etc/default/grub ~/grubbackup
sudo sed -i 's/GRUB_CMDLINE_LINUX_DEFAULT="/GRUB_CMDLINE_LINUX_DEFAULT="nouveau.blacklist=1 /g' /etc/default/grub
sudo update-grub


The file should look like this:

# If you change this file, run 'update-grub' afterwards to update
# /boot/grub/grub.cfg.
# For full documentation of the options in this file, see:
#   info -f grub -n 'Simple configuration'

GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
GRUB_CMDLINE_LINUX_DEFAULT="nouveau.blacklist=1 quiet splash"

# Uncomment to enable BadRAM filtering, modify to suit your needs
# This works with Linux (no patch required) and with any kernel that obtains
# the memory map information from GRUB (GNU Mach, kernel of FreeBSD ...)

# Uncomment to disable graphical terminal (grub-pc only)

# The resolution used on graphical terminal
# note that you can use only modes which your graphic card supports via VBE
# you can see them in real GRUB with the command `vbeinfo'

# Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux

# Uncomment to disable generation of recovery mode menu entries

# Uncomment to get a beep at grub start
#GRUB_INIT_TUNE="480 440 1"

You can run the following command to verify the contents of the file to be safe before you reboot:

cat /etc/default/grub

If you need to make changes, you can run the following command to edit the file:

sudo nano /etc/default/grub

Press CTR+o to save the file and then press CTRL+x to exit nano.

Also, don't forget to update grub after making changes:

sudo update-grub