Most modern monitors use a method called PWM to control the brightness and this is the reason why we feel eye pain, eye strain and headaches in front of your monitor
1. Set your monitor Hardware brightness to 100% using your monitor buttons
2. Use Iris to control the brightness without PWM
Iris Brightness will lower the lightness of your screen without PWM (read more)
If the button above doesn’t work here are some instructions for manual activation: How to try Iris Brightness
