How do I darken my screen ..it is to bright - acer -aspire 5100. Where is the Fn key located on the keyboard?

Press & hold Fn key (lower left colour coded blue) and press left or right arrow keys to lighten or darken the screen.

Locate the Fn (Function) key on your keyboard.
It may be on the bottom left side with dark blue letters.
Locate the two "brightness" keys near the top of the keyboard.
These will be in the "F" keys, possibly if F6 and F7.
They should have little sun pictures or something similar to indicate brightness.
Hold down the Fn key while pressing F7, or whichever "F" key your laptop uses to increase brightness.
Tap F7 repeatedly until you reach the desired brightness.
Fn must be held down as you continue to tap.
Hope this helps

Just press and hold the "Fn" button located on the lower left part of the keyboard then press the right arrow button.. Keep pressing until you reach the brightness that you want. you can lessen the brightness by doing the same process.. Press Fn then left arrow button.

~jash

Try using keyboard combination Fn+right arrow. If this doesn't help right click on battery icon on taskbar, select Adjust screen brightness, then move slider for Screen Brightness to the right.

A new keyboard is your only choice you have.
the internal circuits on the keyboard getting wet while on sure shorts these boards out

I have looked at all of the available pictures of this model PC and all of the images show a Fn key on the lower left side of the keyboard. It is one key to the right of the Ctrl key (the bottom right key on the keyboard)

Let me know if you need anything else.

I have an Acer lap top and there is an Fn (function key) Icon on the <i and the i> keys that mimic a sun device. If you hold down the Fn key and tap the I> key down over on the right sideof the machine, then those taps should brighten the screen. Holding down the Fn key (left side) and tapping the <i key will dim the screen.

Hold down the FN key whilst pressing one of the F1-F10 keys usualy a symbol with a sun and an arrow pointing up for increasing brightness and sun and arrow down for decreasing brightness but remember to hold down the FN key (usualy botton left of keyboard in blue)


Hope this helps

On an Acer, the Fn key plus F7 will turn the touchpad on and off.
Try that to see if it works.

You have a "FN" key in the lower left section of your keyboard. There should also be other keys with ink the same color as the FN. Look for one that has a sun and upward pointing arrow. Press both and your screen will get brighter.

If that does not work then your video inverter is starting to go bad and will have to be replaced.