Ubuntu 20.04 - Screen Tearing

I had the same problem with a GTX 960M on my Lenovo ideaPad Y700 and the following worked for me.

Open a terminal and run

sudo gedit /etc/modprobe.d/nvidia-drm-nomodeset.conf

In the file, write the following line:

options nvidia-drm modeset=1

Save the file. Back into the terminal, update initramfs by running:

sudo update-initramfs -u

Reboot.

Source: ubuntuhandbook.org

If the previous step didn't work, there is another solution that you can try:

$ xrandr --output eDP-1-1 --set "PRIME Synchronization" 1

Reboot.

This command will enable the sync in your hybrid card.

To check that sync has been enable: $ sudo cat /sys/module/nvidia_drm/parameters/modeset

it should return Y now.

Reboot.

1. Try this video to see if you still have screen tearing.
2. Try the solution provided here.
3. What helped in my specific case was that I switched the driver used for my NVIDIA GP107M when using the "Additional Drivers" application and switched from nvidia-driver-440 to nvidia-driver-435.