To stop your Dell laptop screen from flickering, apply the following steps mentioned below:
First, you must update your video driver.
After that, open desktop mode battery charge by right clicking on the battery icon located at the bottom right of the screen.
No click on ‘battery status’ and enable the dell intelligent display.
If you can’t fix the problem through this method, contact Dell Customer Service to avail help from verified employees. This is available throughout the day.
For More information click on this Links:-
Dell Tech Support