Thanks. All settings were balanced. Not sure why this happened.
However, there were a few system updates running in the background. The moment it got done and I rebooted the system, problem was solved.
Not sure what to make out of this.
The computer is working just fine. All programs are working fine. However, the screen keeps turning off, and comes on when touchpad is felt. Then it again goes off in a second. Any solution to this?