Jump to content


Register a free account to unlock additional features at BleepingComputer.com
Welcome to BleepingComputer, a free community where people like yourself come together to discuss and learn how to use their computers. Using the site is easy and fun. As a guest, you can browse and view the various discussions in the forums, but can not create a new topic or reply to an existing one unless you are logged in. Other benefits of registering an account are subscribing to topics and forums, creating a blog, and having no ads shown anywhere on the site.

Click here to Register a free account now! or read our Welcome Guide to learn how to use this site.


Acer laptop display gets bright & dim on its own

  • Please log in to reply
1 reply to this topic

#1 doeskin


  • Members
  • 11 posts
  • Local time:04:48 PM

Posted 29 March 2010 - 06:45 PM

I bought an Acer Aspire 4810TZ-4011 two months ago, upgraded it to Windows 7 Ultimate about a month and a half ago, and noticed this new problem about 2 weeks ago. I did not ever notice this before, even after the Win7 upgrade.

I will set my display to a certain brightness setting, let's say 75%, and it will stay at 75% for a few minutes before the screen will get noticeably but gradually darker, then gradually lighter, then darker, then lighter, and so on. It does not seem to be timed (two minutes light and two minutes dark, for example), and it seems to happen no matter what I'm doing on the computer. There is an auto-dim function that is supposed to set the screen at 30% if it hasn't been used for 2 minutes, but this will happen while I'm using it. Even more frustrating, when I go to look at the power options, it will say that the screen is still at 75%, even when it is obviously not.

I have re-set the power options to the default settings time and time again, it doesn't seem to help. I have also googled for answers, but haven't found anyone with a similar problem (which is troubling). Any help?

BC AdBot (Login to Remove)


#2 MrBruce1959


    My cat Oreo

  • BC Advisor
  • 6,377 posts
  • Gender:Male
  • Location:Norwich, Connecticut. in the USA
  • Local time:05:48 PM

Posted 29 March 2010 - 06:50 PM

Before someone comes and tells you your monitor is dead or dying.... :thumbsup:

Try updating/reinstalling your video drivers, uninstalling the present ones before you do.
Welcome to Bleeping Computer! :welcome:
New Members: Please click here for the Bleeping Computer Forum Board Rules
My Career Involves 37 Years as an Electronics Repair Technician, to Which I am Currently Retired From.

I Am Currently Using Windows 10 Home Edition.

As a Volunteer Staff Member of Bleeping Computer, the Help That I Proudly Provide Here To Our BC Forum Board Membership is Free of Charge. :wink:

0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users