Windows 7 Forums

Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.

Windows 7: How to disable automatic display brightness?

08 Mar 2012   #1

Windows 7 Enterprise x64
How to disable automatic display brightness?

I often change power plan or (dis)connect the power cord depending on what I do with my laptop and where I am. Every time I do so, the display brightness changes into whatever it was last time I had the same power plan and AC power status.

The display brightness has nothing to do with those settings. I adjust it manually to what I feel comfortable with in the current environment, and it's frustrating having it changed by some automatic setting that gets it wrong every time.

I'm in a dark room, getting ready to watch a movie or something, everything set perfectly. Oh right, the power cord. Boom, instant 20% to 100% flash that kills my eyes. Thanks Microsoft...

How do I disable this automatic adjusting and get full control over the brightness?

My System SpecsSystem Spec

10 Mar 2012   #2

Windows 7 Pro 64bit

Hello and welcome to the board.

The "automatic adjusting" is triggered by the Adaptive Brightness Service which
"Monitors ambient light sensors to detect changes in ambient light and adjust the
display brightness. If this service is stopped or disabled, the display brightness will
not adapt to lighting conditions."

So, disabling the service will prevent the auto-adjustment and resolve your frustration.

Start > Run. Type 'services.msc' (without the quotes) and hit Enter.

Right-click on 'Adaptive Brightness' and select Properties. Set the start-up type to: Disabled.
My System SpecsSystem Spec
10 Mar 2012   #3

Windows 7 Enterprise x64

I'm sorry but that didn't change anything. I mean, it seems to be about some kind of light sensor in the computer (which mine doesn't even have I think), and not the power plans.

My problem is that the different power plans have their own idea of how bright my display should be, while they should have nothing to do with it. I want to completely disconnect the brightness controls from them, and have total manual control over it. It should never change unless I want it to.
Whether I change the power plan myself, or plug/unplug the power cord, the brightness should never change unless I specifically change it myself (keyboard shortcut or otherwise).
My System SpecsSystem Spec


 How to disable automatic display brightness?

Thread Tools

Similar help and support threads for2: How to disable automatic display brightness?
Thread Forum
Disable automatic hardware detection and/or automatic driver install Drivers
Notebook display brightness low when plugging out power cable? Hardware & Devices
Sony Vaio display brightness problem Performance & Maintenance
Display brightness random dims HP Hardware & Devices
Fn Keys for Laptop Display Brightness Control Don't Work General Discussion
Disable automatic logon General Discussion
Need help, display brightness Graphic Cards

Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 04:46 AM.
Twitter Facebook Google+

Windows 7 Forums

Seven Forums Android App Seven Forums IOS App

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33