Ubuntu 14.04 and beyond
Please note that
nouveau drivers manual removal is required only if you are going to install the proprietary nvidia drivers yourself. If this is not the case then directly install the required graphic drivers from System > Administration > Hardware drivers. It's the recommended and the most convenient way available.
We'll blacklist all the culprit modules, remove all the nvidia* packages and as an extra step we may have to update the initramfs disk because it could be configured to load the modules at startup.
Blacklist the modules. Open the
sudo vim /etc/modprobe.d/blacklist.conf
press i to enter insert mode and add the following modules in the file.
# this one might not be required for x86 32 bit users.
Save the file and exit.
Remove all the nvidia* packages
sudo apt-get remove --purge nvidia-*
Once you are done with the steps above, reboot, stop the display manager and try to install nvidia drivers.
Press Ctrl+Alt+F1. Once you are in the text mode, stop the display manager. This will forcibly terminate all running applications, so you better save anything you're working on and close them yourself before completing this step. To stop the display manager, run one of these commands depending on your display manager (
lightdm is default in vanilla Ubuntu, but older versions or systems with GNOME desktop may use
gdm and on KDE/Kubuntu/Plasma it should be
Edit: To determine what the default display manager your Ubuntu system is using, issue the command
cat /etc/X11/default-display-manager While this doesn't guarantee you anything, in many cases it will be the correct choice.
sudo service lightdm stop
sudo /etc/init.d/gdm stop
Now, run the driver package that you downloaded from Nvidia’s website. Edit: Replace the filename in the example below with the one you actually have.
Note: If you still get the error related to nouveau drivers then you are probably required to update the initramfs, which might be configured to load the nouveau drivers. Don't reboot or poweroff, run this command to update the initramfs disk.
sudo update-initramfs -u
Now reboot and repeat step 3. This time things should go smoothly.