sudo nano /etc/default/grub
add to default grub command line
ibt=off
Save and close with
ctrl + x
update grub
sudo grub-mkconfig -o /boot/grub/grub.cfg
install nvidia drivers
Run a test install of nvidia drivers first
nvidia-inst -t
Show us the output.
Edit: If no errors on the test install then run the install.
nvidia-inst
reboot