Laptop Display Brightness Problem
Windows 7 is designed to reduce your display brightness after several minutes of inactivity on your laptop computer. The display can use more power than any other part of a laptop computer—even more than a hard disk and CPU, hence this feature is very useful to conserve battery life. Some laptops have a dedicated button or dial to change the display brightness.
However, some users do encounter problems and the display dims even when they are using their laptops. This could be due to old or incorrect display drivers installed on the laptop. If updating your display drivers does not solve the issue, I recommend disabling the automatic dimming of your display from Power Options in Control Panel.
Follow these steps to disable automatic dimming:
- In the Start menu Search text box, type power options and press enter.
- On the left, Select Choose when to turn off the display.
- Change the Dim the display option at the top to Never for both On battery and Plugged in.
- Click Save Changes.
In normal circumstances, this feature is used to shorten the length of time before Windows dims and turns off the display. For instance, when you’re not using the laptop—even for brief periods of time—you can save power by having Windows dim and then turn off the display after a period of inactivity.