Mouse cursor stuck in top left of screen but can still move and interact with invisible mouse

I was able to fix this by installing the nvidia-370 drivers. Try the following steps:

1. Press Ctrl+Alt+F1 at the login screen. This will drop you down into a console where you can login to your user account.

2. Run sudo service lightdm stop

3. Use the following commands to download and install nvidia-370. Make sure you are connected to the internet: sudo add-apt-repository ppa:graphics-drivers/ppa sudo apt-get update sudo apt-get install nvidia-370 nvidia-settings

4. Disable the nouveau driver. This step may be unnecessary but I did it anyway. Edit the file /etc/modprobe.d/blacklist.conf and add blacklist nouveau at the bottom. Save and Exit.

5. Run the command sudo update-initramfs -u

6. Restart with sudo reboot