How To Disable Auto Brightness in Windows 8

When I installed the Windows 8 Consumer Preview on my Mac, I noticed one HUGE issue that I just couldn’t deal with; the screen would keep dimming down no matter how many times I would set the brightness to 100. Apparently, in anticipation of putting Windows 8 on tablets with light sensors, Microsoft has added the feature of auto brightness just like they have with their phone devices. So, I had to find out how to disable it before I threw the computer across the room. Have the same troubles? There’s help.

I. Disable Auto Brightness

1. Head to the Desktop of your PC by pushing Windows Key + D or clicking on the Desktop icon in the Start Menu.

2. On the bottom right of the screen, locate the battery icon.

3. Right click the battery icon and select More Power Options.

4. Select Change Plan Settings on the currently selected profile (by default it’s set to Balanced).

5. Click the Advanced Power Settings link.

6. Scroll down to Display > Enable Adaptive Brightness.

7. Change it to Off for either or both “Plugged In” and “On Battery”.

86 responses to “How To Disable Auto Brightness in Windows 8”

  1. Carlos says:

    Thanks. Same problem I encounter now solved

  2. David says:

    Yes thanks, always a mystery how far down something is buried in new versions of Windows. Also a mystery why nobody that tests Windows is ever annoyed by that feature, I’ve hated automatic screen dimming on almost every device I’ve ever had… Dell notebooks have had that for years and the old Windows Tablets, the Compaq pocket iPaq, all annoyingly would dim the screen at the worst times!

    The only time I think auto screen dimming would be nice in on my Kindle Fire (and only at night time hours). But they removed that feature for a manual control panel. I’ve never seen it live on Kindle so maybe they got rid of it because too many people told Amazon it was annoying and they listened.

  3. awaizy says:

    Wow, thanks. The function works so horribly that it just got annoying. My screen was simply changing brightness on a dime and I was in a room where the lighting was not changing whatsoever.

    • Galleon Dragon says:

      The light sensor on my VAIO laptop was near the joint where the screen and keyboard meet. And it’s a touch screen. So whenever I touched the screen I cast a shadow on the sensor and the screen dimmed. It was absolutely maddening. I would never have looked in the VAIO control center if it weren’t for this thread. Thx to all for your info.

  4. awiklendt says:

    thanks for the info …but… all my power profiles for display’s ‘enable adaptive brightness’ are set to ‘off’ and the screen still wavers in brightness. when i use my function key to turn down brightness, it works while i’m dimming, but then automatically gets bright again. are there any other tricks? i’m using SVE14a15fg from sony (; I have all the win7 drivers but not sure which ones to install for this feature. Anyone have any ideas?

    • Corey says:

      2 weeks later, but I might have a solution for you if you haven’t found one yet. if you have cleartype enabled, it might make the screen look brighter, and you’ll notice it mostly when viewing black text on a white background (like this website). It should be fairly straightforward to disable, just search “cleartype” in settings, then go to adjust cleartype text and uncheck the box that enables it.

      hope this helps!

  5. awiklendt says:

    (and yes, i installed the video card drivers AND rebooted, but no effect). thanks.

  6. Jonny says:

    Having trouble with the Dell Xps 17, it also keeps dimming the brightness randomly? Some help please?

    • wintony says:

      go into the intel graphics and media control panel

      click power tab on the left, then turn off all the power saving options

      • sczmn says:


      • Brandon G says:

        I found the “Power” settings in the Intel Media Pane, however the only place where I could take off the Power Saving Settings was if it was running under battery. On “Plugged In” I changed the setting for maximum performance. I don’t believe it changed anything though.

      • ethesx says:

        This worked for me as well for Sony Vaio S15. We had actually troubleshot this with Sony tech support and came up with a backlight issue since there is also a setting in the Vaio Control Panel which controls auto brightness. This was disabled, so it appears that Intel’s software is overriding this.

        Thanks so much! You’ve helped me to avoid a return/replacement and going through the frustration of the same issue on the replacement laptop!

      • mritchi07 says:

        you’re a life saver! been trying to find the solution for ages!

    • Brandon G says:

      I also am having the same issue on a Dell XPS 17, Windows 8 native settings for auto adjust are turned off. I could not find any settings in the intel Pane that would change such settings.

  7. saywut says:

    ahh the problem is i dont see any word such as enable, i only see dimmed and stuffs.

  8. Tigare says:

    Thanks a lot. This was driving me crazy.

  9. Derp says:

    If you have installed the AMD drivers, it’s called Vari-Bright. Just disable it in the Catalyst Control Panel.

    • Karthik says:

      Thanks Derp :-D… Vari Bright worked For ME

    • Damian says:


    • Patricia says:

      Thank you SO MUCH I needed this <3 I was about to blow a gasket because I'd just got my laptop back from Geek Squad repair for an issue with cracked screen bezel causing the screen to blank out and I thought the flickering was related to that, and that either they didn't fix it or UPS were being dicks and juggling my laptop with a chainsaw or something!! Didn't realize it was a software issue, FINALLY got it to work <3 I love you!
      and so should Geek Squad and UPS lol

    • Chadwick says:

      You sir, are my hero!

  10. Michele says:

    Thanks so much for this solution for Sony products. My new Vaio S does not have the “enable adaptive brightness” setting. Going to the Sony Vaio control center and making the change was the trick! The screen dimming was completely maddening!!! I spent hours trying to figure out how to change it. I wish I found this site first!

    • Nade says:

      I went to the VAIO control center but couldn’t find a setting to turn off the auto-brightness! can u help?

      • Blabla says:

        Go to the VAIO control center and select screen quality (my laptop’s language is not set to English so I don’t know what it would say on yours exactly), then the first slider you’ll see is for adaptive brightness. Set to “off”.

        However, on mine (also an S), it STILL auto-adapts the brightness whenever the laptop isn’t plugged in, and it is driving me raving mad. It is so unbelievably annoying, and performs like sh-t anyway, always confusing its own light with the surroundings …: Whenever the screen turns white, it starts upping the brightness even further.

        • rinnn says:

          i’m having the same problem. Also an S too. since this post is 5 months ago, may i ask if you had this figured out yet? it’s driving me insane here 🙁

  11. Dave says:

    Thank you!!!

  12. Rahul Gupta says:

    Thanks…. made my day!!! 🙂

  13. Me says:

    Thank you so much!!!!!!!!!!! This used to drive me crazyyyyyyyyyyyyYYYYyyYYYYYY … no more mwhahah :D:D

  14. JE says:

    Thank you, Sir. My computer was driving me crazy.

  15. OMG THANK YOU FOR THIS. Been having trouble with series chronos 7 and its auto brightness.

  16. Nat says:

    Thanks a bunch! My tablet PC kept suddenly going to 100% when I had it turned down because it’s dark in the room. Kept blinding me! Disabling it makes using the computer not hurt my eyes so much.

  17. I followed the instructions above, but it has not resolved the problem. I see comments below about sony vaio control center and cleartype, but I dont know what any of that means. Can someone provide me very simple, step by step directions on how to turn the wavering brightness off in all necessary places so it goes away for good? I own a new samsung series 7 chronos with windows 8. I would like it to be as bright as possible (i have the brightness at 100%).

    • Mike says:

      You have to go to your start menu, where your button icons are that’s you click to start a program. Then you type control at that screen to do a search. Select Vaio control center. There is a toggle switch at the top for display brightness, switch it off. Then back out and adjust the brightness with the FN key and F5 or F6 and it will now stay where you set it

  18. JustUser says:

    Thank you!!! It was really terrible to have dark screen in bright room for me

  19. Milly Hernandez says:

    I have win8 on a Vaio done all what u say but still have the same problem :/

  20. JoieNsk says:

    Thank you very much! On my Sony laptop it worked differently, there was no “adaptive brightness” option, but there was an option to change battery settings and actually SAVE them – not like when you do it through Control Panel. Thank you very much, it was so irritating, – not been able to see anything on the screen. Now everything is working :)))

  21. Andy Hellinx says:

    Changed my life! Tnx!

  22. JG says:

    I have an Acer laptop and I’ve had the same problem!! It was the brightness control on the graphics card that was low.

  23. Eduardo Kato says:

    Already did the main post,but it still keeps dimming(yes i saved the changes)

    Dell Inspiron 14z
    Windows 8

    What to do?(the fun thing is:it starded doing this,then stopped,then now it came back)

  24. Maryann Goldman says:

    My eyes and I THANK YOU!

  25. Jonas Esteves says:

    Thanks for the help. I just bought a new samsung laptop and was running into this same problem.

  26. teewy says:

    Thank you so so much. Incredibly grateful to you mister!

  27. sarah says:

    I don’t have the adaptive brightness in my power option can anyone help me find another solution?

  28. sara says:

    takh ret

  29. fitifititis says:

    I followed the above guide and it din’t work. What DID work however was uninstalling ASUS Power4Gear Hybrid. Maybe it had some option to turn off auto-brightness there, but who needs the extra crapware on his computer anyway?

    • dreaddead1 says:

      Unfortunately having disabled nVidia stereoscopic and streamer services, as was pointed out in the ROG forums, then uninstalled Power4Gear Hybrid. The auto dimming was gone but only for about a week. :

    • AGreenhill says:

      Uninstalling the ASUS Power4Gear Hybrid didn’t work for me… all I have now from Asus is the “ATK Package”… and I’m not sure anything in there can affect this behavior…

      These automatic “convenience” tricks are so stupid…

      • fitifititis says:

        You have to follow the above guide AND unistall Power4Gear Hybrid. And then restart your laptop. I think that was all i did that disabled automatic brightness (I tried many things at the time, though most useless I think). I haven’t seen the brightness adjust on its own ever since I wrote the first comment.

  30. Barika says:

    thank you!!!!!!!!!! it worked!

  31. It's me says:

    Just wanted to say – Thank you. Would’t have been able to figure it out by myself 🙂

  32. JSuze says:

    Thanks so much! I agree that it shouldn’t be so difficult to fix this issue, (which I never had until I installed Windows 8)

  33. William Ashby says:

    Thank you for the info.. I was ready to through my laptop out of the window.. It is ridicules that Windows 8 defaults in this mode… You saved me time and money.

  34. tanyy says:

    Finally my problem solved… Thank You very much…
    I used to work in this stupid ‘darkness’ screen even I have switch on my light.

  35. Jagadish says:

    If you still not able to solve screen brightness automatically increase to maximum issue. Try the to disable automatically toggle between normal mode and gaming mode. If you use Bitdefender and you set it in autopilot mode, this can cause your computer automatically toggle between normal mode and gaming mode. To disable automatically toggle between normal mode and gaming mode, do the following:
    1. Open Bitdefender
    2. Click Tools
    3. Click Profiles
    4. Under Movie Profile, click configure and uncheck Adjust power plan and visual settings for movie
    5. Under Game Profile, click configure and uncheck Adjust power plan and visual settings for games

  36. Saroj says:

    it really worked…i was really upset i tried everything but was not able to get through to disable auto brightness…but now its now..thanks for the help

  37. GatoCat says:

    Success! Thank you for saving my sanity.

  38. Anthony Palacin says:

    Thanks for this post. Legitimately stopped me from calling Toshiba tech supports (the next tab open that I was going to use if this solution did not work). It’s really dumb that by default the max brightness is at 30% for both plugged in and not. Make sure to change that setting as well as the auto-adjust if you want to manually control the brightness settings.

  39. Steven Paul says:

    THANK YOU! The auto-dim feature was pretty annoying. There should be an easier way to do that, too. Ridiculous that you have to go through 4 steps (including an “Advanced Settings”) just to turn off auto-dim.

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