The screen of my laptop has lose some brightness. How to restore default brightness?
Reasons for the problem
On laptops, following the power scheme chosen, it is possible that after a disconnection of the power cord, the screen's brightness may fade out.
Seven or Windows Vista, the solution is very simple. Just simultaneously press Windows key + X. You will have the following window:
Then drag the indicator to change the brightness to your liking.
On most laptops, there are already shortcuts to change the brightness. For example:
On HP (and other models) is the Fn + F7 to key increase or Fn + F8 to decrease brightness.
On IBM ThinkPad, Fn + Home or Fn + End
Asus, Fn + F6 to increase, and Fn + F5 to decrease. .
You can easily find these shortcuts just by looking on the keyboard. Brightness is often designated by a small sun with an arrow at the top or bottom. But sometimes we need that the proper driver is installed for these buttons work!