Where there has been an error during the installation process, upon rebooting you may see the following error message: modprobe: ERROR: could not insert nvidia : No such a device
If this happens:
1. Remove the NVIDIA driver by entering the following command into your terminal:
sudo mhwd -r pci video-nvidia
2. Reboot your computer
3. Enter the following into your terminal:
sudo gedit /etc/mkinitcpio.conf
4. delete the word nouveau from the following line:
MODULES=" nouveau"
It should now look like this (i.e. keep the speech marks ("")):
MODULES=""
5. Save and close the file.
6. It is now necessary to reconfigure your existing kernel to take into account this change. The syntax of the necessary command to enter into your terminal is:
sudo mkinitcpio -p [linux kernel version]
For example, if you are currently using Kernel 3.10, you would enter the following:
sudo mkinitcpio -p linux310
For kernel 3.11, you would enter the following:
sudo mkinitcpio -p linux311
And so on.
7. Now re-install the NVIDIA driver by entering the following command into your terminal:
sudo mhwd -a pci nonfree 0300
8. Reboot your system. Now it should work