I can't adjust the brightness!!!! everytime i put it up, it goes back down to 0% in 2 second. its very annoying, i can't figure out why its happening, the battey is full and its connected to the mains and its still annoying!!! HELP!!!!!!!!!
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You are correct in thinking it may be a driver issue. Check the device manager and see if the drivers are installed. Under "Display Adapter", you should see the make and model of your device. If it shows up as Standard VGA Adapter, then you are using built in drivers and should look for the right drivers.
If everything looks good otherwise, then you are probably looking at a faulty LCD/LED. A faulty LCD/LED can yield all kinds of problems, and replacing the entire unit is usually the easiest option. On average an LCD/LED is more or less $50.
On most laptops, there are 2 blue-tinted pictures that may looks like light bulbs or suns located on 2 of the function keys (F1, F2, etc.) that stand for increase and decrease brightness. If you hold the "Fn" key, and start tapping the increase brightness key, the screen should turn brighter. Otherwise, you may be able to adjust screen brightness from Windows, by going to power options (control panel or right click the battery icon in the task bar) or by customizing your desktop (control panel or right click on the desktop).
hi i also have an acer 6920 but my problem is that everytime the laptop display screen is not on the brightest (high performance) it makes a really annoying sound. But when i plug it in or have the brightness on high, the sound goes away. Please help me!
Have you tried using the manual controls on the keyboard for changing the brightness (Fn right arrow)? I think the epower management is crap, usually I just uninstall them all and adjust things manually.