====== Ubuntu - GPU - NVIDIA GPU - Uninstall NVIDIA driver ======

===== When installed through Ubuntu Repo =====

<code bash>
sudo dpkg -P $(dpkg -l | grep nvidia-driver | awk '{print $2}')
sudo apt autoremove
</code>

or 

<code bash>
sudo apt remove nvidia-driver-470
</code>

----

===== When installed manually =====

<code bash>
sudo bash NVIDIA-Linux-x86_64-XXX.XX.run --uninstall
</code>

----

===== Switch back to the nouveau driver =====

Enable Nouveau modules, if this was blacklisted previously:

<code bash>
sudo rm /etc/modprobe.d/blacklist-nvidia-nouveau.conf
</code>

else install the nouveau driver:

<code bash>
sudo apt update

sudo apt install xserver-xorg-video-nouveau # for xserver.
</code>

----

===== Reboot =====

<code bash>
sudo reboot
</code>

or 

<code bash>
sudo init 6
</code>

----

===== Confirm the nouveau driver is loaded =====

<code bash>
lsmod | grep nouveau
</code>

returns:

<code>
nouveau              1949696  4
mxm_wmi                16384  1 nouveau
ttm                   106496  1 nouveau
drm_kms_helper        184320  1 nouveau
drm                   491520  7 drm_kms_helper,ttm,nouveau
i2c_algo_bit           16384  1 nouveau
wmi                    32768  3 wmi_bmof,mxm_wmi,nouveau
video                  49152  1 nouveau
</code>