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Issue with brightness self-adjusting

Q: Issue with brightness self-adjusting

I have a HP dv6 laptop, intel core I3, 4 GB, running windows 7 sp1.

The issue is the brightness will rapidly adjust itself intermittently. This is a new problem, Im not sure if there is any settings I can adjust or whatnot before taking it in for repair. Any help is appreciated!

Preferred Solution: Issue with brightness self-adjusting

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A: Issue with brightness self-adjusting

Is there a hotkey button to adjust the brightness on the laptop? If so maybe it is stuck or sticking.
EDIT: My sister has the same laptop try holding the Fn button and tapping the F7 and F8 buttons to adjust the brightness. Those buttons might be sticking causing the issue.

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The screen Brighteness is being the same its unable to adjust, I tried all sort of things but invain. So finally I came to know that, there is some PCI Device is not installed. Kindly tell me where to find that and how to install.

A:Brightness is not adjusting

Need the hardware ID of the device. http://www.howtogeek.com/193798/how-to-find-drivers-for-unknown-devices-in-the-device-manager/

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I have a few MPG and AVI files that inside WMP 10 I can't adjust brightness. The slider just jumps back to the middle and the movie remains dark. Any ideas?

A:adjusting brightness

Use another player.

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I have a HP laptop. Its screen it very bright. I want to dim the screen brightness. The keyboard keys doesnt help much it and i cant figure anything in settings section. Kindly help me with it.

A:Adjusting screen brightness

Hello Saniahasni Please tell us the full model number of your laptop and the operating system used. HP Notebook PCs - How Do I Find My Model Number

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since i bought my new laptop 2 weeks ago i havent been able to adjust my laptop's screen brightness, it is at it's maximum and the keys do not adjust it i have even tried doing it from the settings but still it doesnt work. Please help the brightness is affecting my eyes

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I've recently got a new computer laptop with Windows 7 and the first thing I noticed that the screen is much brighter (and maybe more saturated) than my previous laptop (with Windows XP). First I thought it was my laptop, but then I saw an other computer with Windows 7, and the screen there is very bright too. I searched the net and I see that there are more people complaining about the brightness on Windows 7.
I understand that I can set the screen brightness, but it seems like a fact that the "default" brightness on Windows 7 is way brighter than on Windows XP. Some people are probably accustomed to this, but to me it's too much. I can decrease the brightness with the laptopl's controls on the keyboard, but I think that's not the way to go - I think I should look at the Windows 7 configuration. I could go to the ATI Catalyst, but is there an other way? Is the Calibration tool the only option?

And the second question, if this is a common problem, maybe there are some known settings that would take Windows 7 brightness closer to Windows XP and earlier versions?

A:Adjusting Windows 7 brightness - what's the best way?

If these are new laptops then, yes they will be brighter then older computers. But it has nothing to do with Windows. It has to do with the display themselves. A lot of the new LCDs on modern laptops are brighter quite a bit brighter then previous generations in part, moving to LEDs for the backlight.

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I have a NIVIDIA RIVA TNT2 MODEL 64P monitor with Windows XP installed. The brightness, color etc. on the monitor seem to be at the max but all images/pictures/movie files etc are very dark. Is there any other way to adjust the brightness on the monitor?

A:Adjusting Monitor Brightness

I think that's just your video card type. If your monitor is old and this has been gradually getting worse then it could be going. You can usually adjust the brightness with your video card settings.

Right click desktop, choose properties, settings, advanced. You may have to try a few of the tabs to find the controls.

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well when my laptop is plugged in it shows maxiumum brightness, but when its not plugged in it become brighter, yet brightness setting shows in the middle, for not plugged in, how can i get the plugged in brightness to equal unplugged brightness, and I have tried changing power settings.

A:Screen Brightness adjusting help

First of all, please specify maker and model of your laptop. Some vendors could have their own third party replacements for some functions.

Also, please go to Control Panel - Power Options - on the right side of your current active power plan select "Change plan settings" - in the next window click "Change ADVANCED power settings" - then navigate to - Display - Display brightness and check percentage.

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Hey everyone,

If I'm running media center in a window, is there a way to adjust the brightness of the video in the window without changing the brightness of the entire monitor?


A:Adjusting Video Brightness

How to Adjust the Brightness on a DVD in Windows Media Center | eHow.com

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Hi all,

Last tuesday I've received my new laptop / netbook: Asus X205TA. After installing everything I found out that my brightness isn't adjusting. I've tried to:
- Use all different ways to adjust brightness (charms bar, shortcut, power plan settings etc.)
- Windows update
- Update Microsoft Basic Display Adapter drivers (there are no updates available)
- Disable and re-enable the Display Adapter

Yet: it's not working. I've also have a problem booting up games. Even the simplest of games (as the netbook is low-spec) are either not booting up, or they show errors about not being able to access the video card or so. I wonder whether these issues have something to do with the brightness settings.

I'd appreciate any input from you guys


A:New laptop not adjusting brightness

Well issue is that your graphics cards drivers are't installed, nor detected! So you are stuck with Basic Display Adapter Drivers

I had a look at the specs and it says "Integrated Intel? HD Graphics" which isn't helpful as there are different models of the Integrated Intel? HD Graphics

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Hi! My Lenovo Yoga 710 14-IKB is now stuck on medium brightness and I canīt change it. I have tried to disable and enable generic PhP drivers and rebooting. Brightness adjusting was working fine 3 hours ago but now when I booted up my laptop, it wasnīt working.

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After upgrading the OS to windows 10, the fn keys (f9 and f10) for adjusting the screen brightness are not working. I have already updated the driver of the keyboard to the latest version and there is no problem in ajusting the screen brightness in the display setting panel. Please help.

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I recently upgraded from WIN98SE to WINXP. Before the upgrade I used to go into my Display settings to adjust the brightness on my monitor through the video card, but now through XP I cannot find that function. My video card is a Nvidia Riva TNT2 64MB card. I have a brightness adjustment in the monitor settings, but that is already adjusted at 100% and I need to adjust up a little bit more. Does that make sense? Does someone know where I can find this now that I am on XP?

A:Adjusting Brightness in Display Driver

Uninstall your NVidia display adapter. Run one of these to be sure all the driver files are removed: Driver Cleaner Professional or Nasty File Remover.

Then, install the most recent driver:


You'll find color, brightness, gamma adjustments in the advanced display properties and a separate adjustment for DirectX overlays, such as video player windows.

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i cant get the function keys for the adjusting of brightness of my laptop screen. i can adjust it when it starts up but when the welcome message of windows xp starts i cant adjust it anymore. it's very annoying since i have to restart my laptop just to adjust the brightness using the function keys. anyone can help? please thanks.

i'm using Windows xp, Mobile Intel(R) 965 Express Chipset Family for my graphics.

these i think the most relevant for this issue.

btw, all the other function keys work. thanks again

A:adjusting brightness (function keys)

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I was adjusting my battery settings on my laptop and now my screen has gone much darker. I cant seem to locate a brightness adjustment in the control panel. Can anyone make a suggestion? The laptop is a lennovo ibm thinkpad.

A:Solved: adjusting screen brightness

actually, i think i just figured it out. I had changed the setting to maximum battery life. Just switched it back to maximum performance and issue went away

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Hi there guys,

I have a problem with my dell inspiron m301z laptop,
Whenever there is something dark on my display ( this could be a picture or a website or something else) my brightness automatically adjusts to that environment. So its like the brightness is adjusting automatically depending on the virtual environment. I looked up the forum for similiar problems and tried some things with the power options and stuff but couldnt not fix it..

However this does not happen when the adapter is plugged in, everything stays equal all the time,

Thank you guys.

A:[Brightness] adjusting to virtual environment

So you are referring to a difference in behaviour when running on battery power versus mains power?

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I purchased a new computer the other day and it is running Windows 10 Home. One thing that's annoying me is that when I adjust the screen brightness through Control Panel it keeps getting undone. I don't want to squint when I look at my screen. I keep having to increase the brightness all the time. How can I set the brightness and have it stick? Thanks.

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Ive obviously changed some setting on my Samsung R780 laptop but no idea what.

The Fn key is not working for anything like settings to increase/decrease volume and brightness.

Any ideas how to fix it please.


A:Volume and Brightness not adjusting with Fn key on Samsung laptop

Try Installing the Easy Display Manager ... From the Link below ..
R780 17.3 High Performance Notebook (NP-R780-JS03UK) | Support | SAMSUNG UK
If that is not your exact Model Number search Samsung Website ... For the right Model ...

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Hi everyone, I have a pretty weird tech problem.

What happens is, whenever I adjust my monitor's brightness (from its physical buttons) the screen turns black. However the monitor is still on, the LED is still green and the computer is still responsive, the screen just turns black.

I can use the computer just fine, as long as I don't try to adjust anything. If I do want to change something, I have to change the values a little, then restart, change them again, restart until I have the values I want. This problem appeared when I tried to adjust the brightness by keeping the + button pressed down, so it increased quickly.

Is this indicative of a dying monitor ? It is pretty old, it's an LG L1750SQ, 17 inch LCD, it's over 4 years old. Also, I do not believe the video card to the problem, since it stays pretty cool, it has a good heatsink on it.

Tech Support Guy System Info Utility version
OS Version: Microsoft Windows XP Professional, Service Pack 3, 32 bit
Processor: AMD Athlon(tm) 64 Processor 3200+, x86 Family 15 Model 47 Stepping 2
Processor Count: 1
RAM: 3071 Mb
Graphics Card: NVIDIA GeForce 9800 GT , 512 Mb
Hard Drives: C: Total - 30521 MB, Free - 4273 MB; D: Total - 61043 MB, Free - 37894 MB; F: Total - 61051 MB, Free - 27826 MB;
Motherboard: ASUSTeK Computer INC., A8R-MVP, Rev 1.xx, MB-1234567890
Antivirus: COMODO Antivirus, Updated: Yes, On-Demand Scanner: Enabled

EDIT: Now it's happening even without adjusting anything. I'll ... Read more

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Hi All,

I have an ASUS S400CA running Windows 8.1 (64 bit) and I am having a major issue. When I click Fn + F5/F6 to increase or decrease the brightness, nothing is happening. The slider is stuck beyond a point and the brightness does not change regardless (it is stuck at the highest setting). I have tried to fix this issue by changing brightness settings in the Control Panel, Battery Options, etc. but nothing is working.

How do I fix this issue? Is this is a driver issue? I have tried to find previous versions of the Intel HD Graphics 4000 Driver on the Asus website but only find the one I am using. What should I do? This is urgent!

Thanks so much!

A:URGENT - ASUS S400CA Brightness Not Adjusting

On my ASUS Laptop I believe its the ATK utility that controls the Fn key operation. Have a look and see if the ATK utility is available for your model.

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i am unable to change the brightness of my system when updated to windows 10 from windows 8.1 .The brightness always remains as maximum.So that the charge of the lap is getting down fastly

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I just got the HP Pavilion 27xi IPS LED Backlit Monitor at work, working on a computer running Windows 10. I'm pretty tech-saavy, but I cannot figure out how to adjust the brightness! I've tried the F9/F10 function; doesn't work. I then thought it might be an issue with the driver, so I went to Settings -> Displays -> Advanced Display Settings -> Display Adaptor Properties -> Monitor (tab) -> Properties -> Driver (tab) -> Update Driver but got the "The best driver software for your device is already installed" message. Under the Settings -> Displays screen, there's no option for adapting the brightness and I've scoured the forums, but none of the solutions presented are working. Should I manually install an older version of the driver software? Any other potential solutions?

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Hello guys, I am not seeing the 'screen brightness' adjustment on this pc though? Normally it would be at the bottom of the Power Plan window. Pressing the FN key and using the up and down arrows or f4 or f5 keys doesn't do it either, help?

A:Dell Inspiron 15 N5040 Adjusting screen brightness?

mikehende,Reinstall the video card drivers. You may also want to install the chipset drivers first, reboot the machine and then reinstall the video card drivers.

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     I have Dell Inspiron13 7000 series laptop.Everything was working fine until 2 weeks back.
Suddenly I wasn't able to use F11/F12 keys to controll brightness.Even if I clicked I wasn't getting the actual brightness bar.I checked some blogs and youtube videos, which helped me and it fixed my issue.
Suddenly after almost a week or so, I am getting another issue.I can scroll up or down the brightness however it doesn't change any brightness level.Right now it is too bright but I can't change it.
Has anyone been facing this issue or resolved this?
Laptop was in perfectly operating condition before.I have been getting these issues recently after regular windows update.

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A small, probably a silly issue. But I cannot resolve this.

My computer time is off by 1hr - obviously the DST changes have caused this issue.

In my date/time settings:
Timezone: Eastern (-5)
Automatically adjust for daylight saving time: Checked

In Internet Time:
Automatically synchronize with Internet time server: Checked
Dropdown selection on: time.microsoft.com

I just did an update of internet time synchronization and it changed the computer time to 8:55am when the correct time is 9:55am.

I tried downloading the DST update from Microsoft, but when I try to install it, it tells me that this update is already installed.

This is messing up my Outlook, which is in turn messing up my sync with my Smartphone.

A:XPProSP2 | DST Time| Auto Adjusting Issue

Hi Rollerr,

I usually just go to the clock properties and set the proper time there.
Would this not work for you?


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i am unable to adjust brightness in my pc.please help me...

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Hey guys, i have search the forum and not found a solution for my problem,

I got a Fujitsu Seimens Lifebook P3110 with a Intel 4500HD graphic card.

I cannot change the brightness of my screen.. Right before windows goes to loading screen i can change the brightness but when im in windows i cant.

I tried reinstallning chipsets, graphic card drivers, power saving utility and almost everything else.

A:Help with brightness issue


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After reseting my laptop i can't adjust brightness of my pc. I am install all driver with update version although issue is same.Please list out a step to adjust brightness. Thank you.

A:Brightness issue

Hi, Hold down the Windows key and press R Into the Run box type devmgmt.msc and hit enter. In the Device Manager window, expand Display adapters. What is the name of the device(s) listed here? Regards, DP-K

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F1 and F2 key not working brightness not adjust

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i am unable to change brightness.i am using window 7 professional 64 bit, an also installed Intel High-Definition (HD) Graphics Driver - sp69588 , but brightness is not changing. plz solve this..

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Sir im using hp 15 ba025au laptop in which window 8.1 .in this brightness key were working but the brightness were stable  so please send me link for the driver for the solution of these issue 

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I am using hp 15-be003tu Notebook laptop, in that i am not able to adjust brightness. I have already setup the driver required for that from hp site. even then also its not work. Please suggest me something. How do i solve this issue.  Thanks.

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Sir,        I having HP 15-be003tu  notebook laptop, i have installed all drivers from hp home site. I am not able to adjust the brightness of screen using shortcut key on keypad, also there is no option in control panel to adjust the brightness.Please suggest me something as per as possible.   Thanks.

A:Brightness adjustment issue

sir     i like to driver   250 g4

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I have toshiba laptot. function keys are not working and adjust brightness option is also not showing in the power section.
then how can I reduce the brightness of my laptop.
please help on this

A:toshiba brightness issue

To get the function keys working you can go to Desktop Assist (Toshiba) > Tools & Utilities > System Settings > Keyboard > Special function mode.
Even if it looks right do an Apply > OK that will probably start the service up again. Or you can reboot.

However you can simply use FN+F to access the functions anyway.

Other ways to the Brightness are Charms Menu > Settings > Brightness (Windows 8.1).
Or Control Panel > Display > Adjust Brightness.

You can go to Toshiba support and download the Function Key utility, and System Settings utility from them.

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Recently I have been having this chronic issue with my Yoga 910 (80VF).  My brightness shifts second, by second going from dim to full brightness.  I have disabled Auto brightness and have updated all of thee drivers and I am still having the issue.  Is anyone else experiencing this?  Any recommendations? 

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Hi all.

I have a Dell Inspiron 24-3455 aio. The issue is that the brightness reduction button on the lower right hand side is stuck (not physically it seems)  and the brightness is always stuck on 0 and the upper left brightness prompt is always present because of it. Any attempt to adjust it in the OS results in the brightness quickly going back down to 0. I've ruled out the keyboard and driver issues.

The solution I would most prefer (I'm out of warranty anyway) is to disable the hardware brightness buttons altogether and just rely on the OS to change it. I do not want to go through hardware servicing if it can be avoided. Can anybody help? Thanks in advance.


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My screen brightness keeps defaulting to extremely dim when I unplug my laptop or don't touch anything for a minute or two. The brightness buttons on the keyboard do nothing, and the slider on the settings section of the left-hand pop-up menu only makes the screen go really dim if the screen is already bright and it will not let it be bright again.

The only way I have found to make the screen bright is...
1. Go to Device Manager
2. Under Display Adapters, right-click Microsoft Basic Display Adapter and select update driver software
3. Select Browse My Computer for Driver Software
4. Select Let Me Pick from a List of Device Drivers on My Computer
5. Select Microsoft Basic Display Adapter
6. The screen adjusts and the issue is resolved

This correction only lasts until I unplug my laptop or leave it idle for a couple minutes. So currently I need to do the above process a few times a day and my laptop is almost useless if not plugged in.
***On the device manager window under display adapters, there was a yellow triangle with an exclamation point in it next to my AMD Radeon HD 8600/8700M. Then, I updated the driver and it went away. The update did not fix this problem.

Thank you ahead of time!
Tech Support Guy System Info Utility version
OS Version: Microsoft Windows 8.1, 64 bit
Processor: Intel(R) Core(TM) i7-3635QM CPU @ 2.40GHz, Intel64 Family 6 Model 58 Stepping 9
Processor Count: 8
RAM: 8078 Mb
Graphics Card: AMD Radeon HD 8600/8700M, 1024 Mb
Hard Drives: ... Read more

A:Brightness Issue on my Samsung Laptop

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problem with the brightness ...not able to reduce or increase the level of brightness ..help

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I have been facing an issue with my HP G6 1200TX notebook. Currently I am using O/S Windows 7 Ultimate (64bits). There are two buttons in the keypad, one is for lowering the brightness and other is for increasing the brightness of the screen but when I push any one of these two buttons, it shows an image in the center of the screen as "Sun" shaped having a bar however, it is not lowering or increasing the brightness at all. It seems to be intact. I am really wondering why these two buttons are not functioning though it was working fine earlier. I have checked or read so many articles to fix this issue but did not able to reach up to the correction or final solution. I request you to please let me know what exactly happened with these two brightness buttons. Your any suggestion is highly appreciated. Thanks!

A:HP G6 1200TX - Screen Brightness issue

Plug into AC power. Turn off Notebook. Restart immediately while still on AC.

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Hi, I have a Aspire V5-571 running windows 8 My screen wont turn off auto brightness adjust so it keeps dimming in and out light to dark every minute highly annoying, this I believe is due to the adaptive brightness sesnor on the laptop. I went to battery settings, change plan settings and advanced options and then turned off "enable adaptive brightness when plugged in or not"However it still does it even with this feature turned off so I think maybe its something on my laptop doing this also? I tried running on different battery plans high performance and balanced and it still happens.  I have also disabled the sensor monitoring service via the services.msc but it still dims out, the brightness dims when I minimize a browser to desktop then brightnes back up when i load the browser or some other application.Thank you very much for any input.

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A:Adaptive Brightness sensor issue

It's completely fine to uninstall Acer Power Management, I personally consider it bloatware. As per: When I open Intel(R) HD graphics pannel go to power and then disable the 'power saving technology and click apply then ok' this works for awhile however when ever i remove the power supply and re connect it re enables it does not stay unticked. That would be the power settings changing as the power state changes (plugged in or not). I usually fix this by creating a custom power plan and defaulting to that. If you have a hard time let me know and I'll see if I can come up with anything. 

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Good day! I had my new laptop and i and my friend who had the same unit is experiencing this changes on the brightness. When the screen changes from white to black vis-a-vis the screen brightness adjust on its on. When I open the Internet explorer which is white the screen brightness adjust lighter; but when closed and returned to the desktop screen which is black it the screen brightness adjust darker. Can you help me with this. Thanks in advance.

A:Aspire E5-574g Brightness Issue

This is not something we've come across before.  To eliminate a software issue, make sure the brightness settings are not changing when you switch from a dark to light screen. When you are on a dark screen press the FN key + arrow right or left key and note where the brightness setting is. Then go to a light screen and do the same thing and if the brightness setting is the same no matter what screen you are on, then the brightness setting is not changing and causing this. It would be hard to determine the cause but if you are running the Acer OEM operating system it could be a hardware issue with the LCD. 

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I have a new Lenovo Ideapad 310-15abr, Windows 10, 64 bit, AMD with a Radeon 7 graphics card, with a display problem. When I unplug the power (so it's on battery), the screen dims. So I went to Power Options and changed the power plan both on and off battery so the screen is at 100 percent brightness. Didn't work. Tried a Custom Plan and then went back to a High Performance plan. I turned off Adaptive brightness; disabled the Sensor Monitoring service; updated the Graphic Card driver;disabled and then enabled the Graphic Card again. Turned off Lenovo's Power Options called Power Stretch and Conservation mode.  Also updated the AMD VGA driver.  Nothing works. Still dim when on battery. One thing that I have NOT triedit is changing the registry value by using Regedit command and changing the Feature Test Control. I didn't try it for two reasons. One is that I'm not sure what to reset it to (I've seen "ffff" as the setting and something else longer and more complicated). The other reason is that I am too much of a dumbie to be messing with registry values, basically. I've seen this question asked a couple of times, but no very definitive answers. People usually just tell you to change the Power and Sleep settings so the brightness is on 100% when On Battery.  So that answer is not necessary, but ANY OTHER ANSWERS would be welcome!  Thanks -- Ken 

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hi... i install win 7 pro in my laptop. installed all drivers from recovery dvd but i can't install graphic driver its giving me error like it does not meet to the minimum requirements of the software..

and because of that i am not able to change the brightness of my laptop

please help me.. what to do?

my laptop model is VPCEB34EN

A:sony vaio brightness issue

Hi dipa.
First check beside the touchpad which is the graphics processor in your notebook. After that, use the appropriate link below to download and install it.

Intel - download

ATI - download

Let us know the results.

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I recently purchased a lenovo p500 ideapad from bestbuy around 3 weeks ago. just on thursday, i press the f11 key to lower the brightness and it imidiatley went very dim. i cannot bring the brightness back up even tho the button and the computer says the brightness is all the way up. the screen is at the dimmest setting possible and i have talked to 3 lenovo specialist nd they were not able to help me. they told me to take it back to best buy but that is a hassle for me. i am running windows 8 and i have checked the drivers to see if they are updated and they are but i cannot bring the brightness back up. this is very frustrating. someone please answer back ASAP! thank you.

Go to Solution.


Try this trick out! I got my screen brightness back up by completely shutting down my laptop. Boot it back up and as the Lenovo start up screen appears press the F12 key. It raised mine back up.

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Hiside by side. i can see the difference between the two laptops.(screed display) 1. 2009 acer aspire icore5 windows 102. 2016 lenovo z50 75 amd fx7500 windows 10 sad to say, my 7 year old laptop looks brighter and crispier than my 2016 laptop. both at max settings with latest drivers.saw many discussion on this but theres no clear fixed. any suggestion guys?

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