This helped me to get rid of tearing on my nvidia card with proprietary driver.
- You must have proprietary driver installed.
- Open Nvidia X Server Settings (can be found in control center or in app menu)
- Follow the steps marked on the screenshots:
- go to X Server Display Configuration
- click Advanced
3),4) click on checkboxes
- click Save to X Configuration File
- click Save
- Now reboot and feel the difference