Why does my screen go dim after a while?

Why does my screen go dim after a while?

When your laptop computer is running on battery, the screen will dim when the computer is idle in order to save power. When you start using the computer again, the screen will brighten.

You can stop the screen from dimming itself:

• Click your name on the top bar and select Settings.
• Open Brightness & Lock and uncheck Dim screen to save power.