I've had two laptops, one Sony and another Acer. Sony laptops backlight can be decreased quite a bit, however the Acer laptops backlight brightness is too much.I was wondering where these values sit and if there is a possibility to lower the laptop screen backlight brightness any lower than their current settings.I don't know if this question belongs here but I've asked around a bit in forums and usual answer is to simply decrease brightness using GPU software. Yet this does nothing to the actual backlights, which in the night are eye piercing.
Laptop monitor backlight
hardware
According to the official Quick Guide for the Acer Aspire 5750G, you can use Fn+F6 to turn the backlight completely off, and you can use Fn+ and Fn+ to increase or decrease the screen brightness, respectively:The Acer Aspire 5750G has an Intel HD Graphics 3000 integrated graphics processor. So if you need more fine-grained control over the brightness, use the Intel HD Graphics Control Panel (latest drivers for your laptop) to manually adjust the backlight brightness: