How to adjust the brightness of the notebook screen

After entering the system can not adjust the brightness of the screen, encountered this situation there are two possibilities, one is to install a software, in the official website download area software found in the Hot key driver software installed after the normal use of the combination of keys to adjust the brightness of the screen. Second, the graphics card driver is not installed, resulting in the inability to adjust brightness, can be installed. Normal system adjusts LCD brightness, press fn+ key combination or press fn+ key combination. If you press fn+ or fn+ to adjust LCD brightness, go to the official website to download the software.

The lower right corner of the notebook has a power icon, the following figure is a battery and plug icon, click.

If the drive is installed correctly, you can enter the drive Control Panel to adjust: