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Unable to adjust brightness in my windows 8.1

Q: Unable to adjust brightness in my windows 8.1

I am having this problem from past 3-4 days I am unable to adjust my laptop's brightness. The functions keys for brightness won't work. I also tried changing the power settings to high performance and balanced, that also doesn't changes the brightness.
I also tried manually adjusting the screen brightness. The slider moves but the brightness is not changing.

I am using IntelR (HD) Graphics family.
I tried changing it back to Microsoft basic display adapter but that also didn't help.

I got windows 8.1 installed from the factory itself and everything was working fine until past few days.

Any suggestions??

P.S. => I am using a Lenovo G50 series laptop

Preferred Solution: Unable to adjust brightness in my windows 8.1

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A: Unable to adjust brightness in my windows 8.1

First off, figure out whether or not your laptop has an ALS (Ambient Light Sensor) which will automatically adjust the brightness (if all goes well). Usually it won't override a manual setting, but it's kind of up to the developer which one takes precedence. As for the keys not working, you probably removed (or didn't install after a Windows reinstall) the helper software that controls these functions.

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I've noticed that I can not change the brightness of the screen. I can not change or buttons or brightness settings in the Power Options. I move the brightness bar and nothing happens.Please help me. Thanks


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A:Unable to adjust brightness in my windows 8.1 (G50-70 laptop)

Dear Diefer
Welcome in lenovo community
Can you please let me know your machine model ?

Did someone help you today? Press the star on the left to thank them with a Kudo!If you find a post helpful and it answers your question, please mark it as an "Accepted Solution"! This will help the rest of the Community with similar issues identify the verified solution and benefit from it.Follow @LenovoForums on Twitter!

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I upgraded my LENOVO G580 laptop from 8.1 to windows 10. after installation the screen brightness increased tremendously and the tools to reduce it do not work. can anybody help ?

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I've noticed, today, that I'm suddenly unable to adjust my screen brightness. I have read half a dozen threads reporting the same problem; I tried all the solutions therein (from updating the driver and reverting to the most basic one to manually changing power configurations) and nothing worked. Unlike the vast majority of users who had this problem, this hasn't happened following an update to windows 8.1 (which I did several months ago -- and the adjust was working fine after that).

This might give you a hint:

* As I try to adjust it using the fn key (as I had always done previously), brightness goes up or down just one level -- and that just 'cosmetically', as in fact nothing changes. The indicator gets stuck approximately in the middle of the bar, unable to reach the extremes.

* There is more: on power management, I chose the lowest possible level of brightness when working on battery, just to see what would happen. I then disconnected my laptop from main power, and... the brightness indicator did go down to the lowest level, YET brightness remained unaltered in fact.

Anyone, please??

A:unable to adjust screen brightness - windows 8.1 - ASUS

try turning off Adaptive Display in advanced settings under power management

Attachment 56062

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Just today, my laptop won't let me adjust the brightness, and has completely removed the option to. I am currently running on Windows 10 (64-bit) and again, just today out of nowhere does not let me adjust the brightness. The laptop battery is completely dead (it doesn't work without being plugged in) but this issue has never affected anything. I would really appreciate some help with this ASAP as the screen is damaged enough already. Thanks  UPDATE: The laptop has now completely gotten rid of the option to sleep.

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I recently purchased G50-45 series 80e300gyin notebook with AMD A8 processor and dos based. Installed windows 8 and updated to windows 8.1. Also installed (Beema) AMD Driver (VGA, HDAudio, SATA) for Windows 8.1 (64-bit) drivers but still I am unable to adjust the screen brightness, by default it is at full. Please help me to resolve this issue.

A:Unable to adjust brightness- G50-45 80E300GYIN

hi nikunjpadhiar,
Welcome to the Forums.
When you installed the (Beema) AMD Driver, did you remove any previous traces of the AMD Display driver?
If not, can you try the following:
1. Navigate to the Control Panel (Icon Views) > Programs and Features and uninstall anything that relates to AMD Display Driver / AMD Control Center.and reboot. When finished, navigate to the Device Manager > Display Adapters and the driver should show a Microsoft Basic Display Adapter.
2. Install the (Beema) AMD Driver (VGA, HDAudio, SATA) for Windows 8.1 (64-bit) and reboot. When done, the Microsoft Basic Display Adapter from the Device Manager should now change to an AMD Radeon Display and check if you can now adjust the brgithness.
In addition, check this post by marcus34 as he was able to resolve the issue.

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I have a HP Notebook 15 running on Windows 10. The Processor is Intel Celeron N2840. I recently Refreshed my Laptop To get rid of some useless softwares. After this refresh, Im not able to Adjust the screen Brightness through Display settings (the Option to adjust the Brightness is unavailable) or Keyboard (F2,F3) and the button in the Action Center to adjust brightness is also not available which I used to have Before. Also I updated my Intel Graphics Driver as directed in many Websites and also the Monitor Driver. But all these methods are not fixing my trouble. Further more, The "fn" key in keyboard is also not functioning, so im kinda' screwed with all these trouble.  It would be very helpful if anyone can mention any fix, Thanks In Advance !. P.S. [Sorry For the bad english, If any ], Thank you !

A:Unable to adjust Screen Brightness

Hi, Can you post back with the full Model No. and Product No. of your 15 series notebook - you can usually get this by holding down the fn key and pressing esc, otherwise see Here for a guide on locating this information. Regards, DP-K

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Hi,   I have HP 15 AY503TX notebook (Windows 7 Ultimate 64 bit). Tried to adjust the brightness using fn+f2 and fn+f3 also tried fn+f10 but all in vain. Can somebody on this forum help me with this. Thanks in advance! PSK

A:Unable to adjust brightness on HP 15 AY503TX

Hi,Download, save and install:Intel graphichttp://support.hp.com/us-en/drivers/selfservice/swdetails/HP-15-Notebook-PC-series/12229013/model/13...System event utilityhttp://support.hp.com/us-en/drivers/selfservice/swdetails/HP-15-Notebook-PC-series/12229013/model/13...Restart system, please check now.RegardsVisruth

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I installed Windows 10 in my Yoga 500 15IDB laptop, but the brightness can't be adjusted. Which software or driver is missing?

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Help? P.S. sorry for making so many threads ;(

A:Unable to adjust or change brightness

Hi @KokoKid.
It sounds like it could be a problem with a driver update. Did you perform a Windows update recently?
I did a search I found this: Solved Laptop screen brightness won't adjust

I hope this can help.

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Hello there, I need help please! I can't fix the screen brightness. It appears to be stuck on full brightness which draws my battery life quickly and hurts my eyes during nights. The brightness button in the action center is missing, there is no brightness slide bar in the display setting nor in control panel, and brightness fn buttons in the keyboard are not working as well. When I click on the battery icon, there is a brightness button next to the battery saver button but also not working (not even clickable).I searched online and I tried:- updating/reinstalling/rolling back display drivers- resetting pc (reinstalling windows)- many other little repairs College is starting soon and I really need my battery life and I will be studying on my laptop in late hours so this brightness issue is a big trouble for me    

bitmap.png ?498 KB

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It is working a few weeks when i bought it, but recently I cant adjust the brightness either in the brightness button or in the display settings. It seems to be locked on 100% brightness. 

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I'm unable to adjust brightness on my lenovo thinkpad x230. I can't see the option in the control panel and the hotkeys for brightness dosen't work either.I've tried to install lots of dirrent intel video drivers and all the drivers I could find on Lenovos website. I've also tried to remove all drivers and carefully install them again one by one.I'm using Windows 7.Do anyone know what to do?

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First, techincal specs.
I have a Windows 8.1 Toshiba Satellite L875D-S7332, with a AMD A6-4400M APU processor with integrated graphics. My display adapter, according to device manager, is a AMD Radeon HD 7520G.

Now, my problem is that I'm unable to adjust the screen brightness of my laptop. I haven't made any recent changes, and I noticed this about a week or so ago(I don't typically change my laptop brightness, so this could have been happening for longer). In the mean time, I've tried rolling back my display drivers, with no success, and also updating to the latest driver set, which has also not worked. I'm not sure where to go from now, does anyone have any ideas to fix this?

A:Unable to adjust laptop screen brightness

Welcome to the Forums.
What happens when you try to adjust the brightness? Is there no setting? Setting grayed out? Or you change the setting but nothing happens?

If it changes for an instant, then reverts to what it was, adaptive brightness may be enabled.

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Hi,I just bought a new ideapad 500s 13ISK and install the latest intel vga driver and lenovo utility software on windows 7. But I can't adjust LCD brightness with hotkeys(brightness +/-), while other hotkeys goes pretty well. Any ways to solve this? OS: Windows 7 Pro x64intel vga driver version: _Display Audio utility version: Thanks!

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In the past few days my laptop has been behaving oddly. At first it would not allow me to adjust the brightness, neither with the function keys nor the slider. This would happen after it awakened from sleep.
It also does not like to restart now. It hangs at the "Restarting" screen until I force it to turn off by holding the power button.
In, addition, the keyboard stopped functioning. This has only happened once, though.
I ran system file check from the command line. It found corrupted files, but was unable to fix them. I ran it again in "Safe Mode" and got the same results.
I tried rolling back the display adapter. This did not solve the problem either. 
Any help will be greatly appreciated.
Lenovo Yoga 2 Pro
Intel Core i7-4500U
Running Windows 8.1 64 bit

A:Unable to adjust brightness after laptop awakens from sleep

Is your OS current? Have you downloaded and installed the latest drivers for all of your connected and installed devices?
Do you have the OS installation disk? Can you boot from that and run the startup repair utility?

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Hi there, as above, I'm unable to adjust screen brightness (by using the 'hotkey or via settings) can anyone help?

thanks in advance

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Until now everything was working perfect. I did a driver update today, which includes the latest display driver, and now I am unable to adjust the brightness. I tried to uninstalled the display and monitor driver but nothing works. Does anyone know how to fix this problem. It looks like it was coming with the latest driver update from today. Thanks in advance

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Using the laptop on battery, when I press on F11-12, the brightness meter is shown on the upper left like usual, but it won't move up or down.  Yet I think it's strange that all other places I can adjust brightness are fine, and especially strange that everything is working totally fine on AC power.
I tried uninstalling the Generic PnP monitor and reinstalling, but to no results.  Also, both my power settings on battery and on power indicate no adaptive brightness.

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OS: Windows 7 Home Premium
Windows 7 pre-installed
CPU: Intel Core i3 380M
Motherboard: Dell Inc. 07FXP8
Graphics: Generic PnP Monitor ([email protected]) on Intel HD Graphics
Dell Inspiron N5040

Beginning today, I opened my laptop from sleep and noticed the display was at its lowest brightness setting. I then tried to restart it to see if that would solve it, no luck. I did some googling and found out it could be a problem with the graphics driver. I then disabled it and enabled it. Now the brightness is at its max settings.

The function (FN) + F4, F5 (the keys to adjust the brightness settings) do nothing. The brightness status will show up on the screen and only change 1 or 2 notches.

I then realized I should have a way to adjust the brightness via the Power Settings in the Control Panel. I even confirmed this with a friend. I should have the sliders to adjust the brightness but I do not. It's very strange.

This is the screenshot from my friend:

This is the screenshot from mine:

A:[SOLVED] Can't adjust brightness, missing brightness sliders


I would suggest uninstalling the graphics driver and get the latest driver from the Dell Support site installed.

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My screen brightness using FN+F11/F12 and also in the advanced power settings slider won't adjust the screen to anything other than brightness and minimum or brightness to 100% when I move the slider.  It shows the percentage moving up and down, but the screen stays 100% until I'm on the lowest setting,  then it goes right to minimum.  I received a bunch of Lenovo updates on the first Wednesday of this month and I've had several issues since then, I tried reverting back to previous drivers, but it made no difference, so I'm back on the latest drivers.

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Hey guys, so I've been having some problems since I updated to Windows 8.1. My screen is stuck on dim. It's not dim enough to be unusable, but it's dim enough that I wish I could turn the brightness up. If I use the hardkeys on my keyboard to turn it up or down, the bar will go up and down, but the brightness won't change. Same goes for using the settings charm brightness bar and adjusting via control panel. I've tried updating my display and video drivers, and messing around with the battery "power plan" settings, but after all that it still won't change. Any suggestions?

Lenovo P400 Touch
Intel 4000 HD graphics

A:Brightness won't adjust after Windows 8.1 Update

Only thing I can think of is maybe change to Standard VGA Adapter driver and see if it makes any difference. Will at least tell you if it has something to do with the driver.

Just noticed same problem here: http://www.eightforums.com/drivers-h...-t-adjust.html

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since i have upgraded to windows 10, i m not able to adjust my laptops screen brightness cause i m not getting the option to adjust screen brightness, nor the screen brightness up and down buttons are working. Also i have updated the graphic adapter and still the condotion is same...no change!!  plz someone give me the solution to get rid of this problem

View Solution.

A:how to adjust screen brightness in windows 10

I fixed this on my Envy 15 j151sa -  Settings > Display > Advanced Display Settings > Display Adapter Properties Then Properties > Driver Tab > Update Driver button. Voila!

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I can't adjust or change my brightness with the hotkey (F11 and F12) or even with the slider in settings

Go to Solution.

A:Can't adjust brightness in Windows 8.1 for IdeaPad...

Hi Sam,
Welcome to Lenovo Community Forums!
I?m sorry to hear that brightness functionality is not working as expected in your Z400 Laptop; I suggest you to install LEM (Lenovo Energy Management) and the latest display drivers in the computer according to the relevant OS (Operating System) installed. Below are the links to download the relevant display driver:

Intel Video Driver for Windows 8.1(32-bit  or  64-bit)
Nvidia Video Driver for Windows 8.1(32-bit  or  64-bit)
Lenovo Power Management for Windows 8.1(32-bit, 64-bit)

Hope this helps!!!
Do post us back if the issue persists.
Best Regards

Shiva Kumar

Did someone help you today? Press the star on the left to thank them with a Kudo!If you find a post helpful and it answers your question, please mark it as an "Accepted Solution"! This will help the rest of the Community with similar issues identify the verified solution and benefit from it.Follow @LenovoForums on Twitter!

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I have a HP Spectre x360 - 13-4009na  and have just upgraded to Windows 10. The problem is I cannot alter the screen brightness using any of the usual methods. - The fn buttons do not work- There is no brightness control displayed on the Control panel - Power Options- The Calibrate Display Colour method fails with an error while "... preparing to calibrate ..." - "Unspecified error". So my display is set to high brightness and I cannot change it. Please can someone help? Thanks, Paul. 

A:Adjust screen brightness Windows 10

I too had the same problem after updating my pavillion to w10.. The problem which i found out was that the display adapter had to be updated. Go to display settings and update driver software

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I recently upgraded to windows 10 from 8.
But now i can't adjust laptop brightness.
My Laptop is Acer Aspire
Is it driver issue ?

Thanx in advance.

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Hi there. I've installed a clean version of Windows 10 Home 64 bit, and, noticed that, with the basic Microsoft display adapter driver, I would be able to adjust screen brightness and would get maximum resolution as well. How ever, even though I disabled automatic driver updating in Windows before I first connected my laptop to the internet, it still proceeded to download a driver that it got via Windows update which ruins the adjusting of brightness. I tried to install the 64-bit Windows 8 driver that is available at support.lenovo.com but that one has the same problem, I can't adjust screen brightness when using it. Neither did the latest Windows 10 Radeon HD 6xxxM driver by AMD off of their website help at all. Everything else works perfectly fine in terms of Windows 10 except for adjusting of brightness, and, I am unable to stop Windows from constantly updating the graphics card driver via Windows Update despite the setting found in System Properties. As such, the laptop is, largely useless, and, has wasted loads of my time. It's a shame really, as, I invested loads into this laptop, and, though it's perfectly capable of running Windows 10, the fact that I can't adjust screen brightness wrecks everything. I have even installed the Energy Management driver, but, that doesn't help anything either. Could someone, please, advise me of some way through which I could make Windows simply STAY at the Basic Microsoft Display Adapter driver, or, w... Read more

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I recently updated my compputer to Windows 10. Since then, I am unable to change the brightness of the screen. I've tried updating the drivers automatically and manually with no results, it is still stuck at full brightness. I am running Windows 10 Pro 64-bit16 GB RAMIntel(R) Core(TM) i7-3610QM CPU @ 2.30GHzIntel(R) HD Graphics 4000 - version (4/4/2016)AMD Radeon HD 7700M Series - version 16.300.2511.1001 (8/11/2016)Happy to provide any more system info as needed. Any advice on how to solve this problem? Thank you for the help!

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I have had an Asus laptop with windows 8.1 for almost two years. Two days ago, I found that I can no longer adjust the brightness. When I use F5/F6 the brightness bar goes up and down between two levels but the screen brightness isn't changing. This has happened before but fixed itself within a day. This doesn't seem to be happening this time. I have checked some solutions to this problem but most people seem to have this problem after an update or upgrade to windows 8.1. This is the same operating system I have been using for two years and, as far as I can tell, there has been no update in the last week. I've checked the drivers and there doesn't seem to have been a recent update.


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Thank you forum! Much gratitude here for your selfless service!!

I am not very tech savvy but I am usually able to solve my own problems. My cat jumped on my keyboard, my display went dim and I could not adjust it ! I am able to move the brightness bar up and down but nothing happens. First, I tried a system restore but that did not work. I went back about a month which was the earliest restore point I had. Then I went to device driver and looked to see if my driver was functioning properly. I was told it was updated and functioning properly. I tried clicking on the windows generic monitor driver also as advised which did nothing. I went to the device driver on the pc and updated from that which also did not work. I am using windows 10.

Tech Support Guy System Info Utility version
OS Version: Microsoft Windows 10 Home, 64 bit
Processor: Intel(R) Core(TM) i7-3632QM CPU @ 2.20GHz, Intel64 Family 6 Model 58 Stepping 9
Processor Count: 8
RAM: 8047 Mb
Graphics Card: Intel(R) HD Graphics 4000, -1984 Mb
Hard Drives: C: Total - 905049 MB, Free - 813152 MB; D: Total - 25599 MB, Free - 25516 MB;
Motherboard: LENOVO, INVALID
Antivirus: Windows Defender, Disabled

A:Cannot adjust brightness windows 10 Lenovo IdeaPC

Two of the keys on the keyboard are used to adjust the brightness; but, if they are printed in the second color, you may need to hold down the Fn key for them to function. If you can't find them (they look like little suns), I need the model number of the Lenovo to help you more.

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I've installed Windows 7 on my Qosmio G30-140 but I'm having trouble adjusting the brightness settings.
Instead of allowing me to set the slider to any position I want I'm stuck with only 3 steps from which to choose from.
The last one is way to bright and my eyes keep tearing up from having to deal with this insane amount of white, especially on white backgrounds.
The other two are very, very dark.
What's going on? I've installed the correct Nvidia drivers.
Also I can't seem to set the brightness by using the FN keys on my keyboard. They simply produce no result at all.

Help appreciated, I can't work like this.

Thank you!

A:Qosmio G30-140 - Can't adjust screen brightness on Windows 7

I managed to tweak it down a notch at the Bios Settings but that still didn't solve my problem.
Please help.

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i have hp notebook 15 ac 119 txbecause of various errors after windows update i put my system on recovery after the recovery again the problems have started coming. recent problem is of brightness. i cannot adjust my brightness at all. F-keys from keyboard have no effect and even it can not be adjusted through control pannel. i checked in device manager regarding the dispaly drivers update. it says i am using the latest versions of display  drivers.please help. 

A:brightness keys not working ; can't adjust brightness at all

Hi, I'd try reinstalling the amd/intel switchable graphics software package on the link below as it mentions a fix related to the f2/f3 keys. http://ftp.hp.com/pub/softpaq/sp74501-75000/sp74717.exe When this has completed, restart the notebook. Regards, DP-K

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Hello all, Im not the best when it comes to knowledge of computers and what not but I'm completely stumped and so is everyone else on the web, it seems. Cant find a solution to this for nothing. I also did a search here on screen brightness problems and didnt find anything specific to my problem..

Basically I just installed Windows home 7 ultimate on my HP dv5t after previously having vista on it and I cant find how to adjust the screen brightness. I've googled it and others have had the same problems but I cant find how to fix it. My fn shortcut doesnt work, and when I go to power options and all that, theres no slider or even option to adjust brightness. Ive seen where it's supposed to be on windows 7 via youtube videos but it's not there. Anyone know what to do, or has anyone heard of this??

The only thing I've found is a thread here, post 14, where they claim a guy found a solution but It doesnt work for me, or maybe Im doing it wrong but ive done it several times.

Any help would be appreciated! I cant stand it anymore, I feel like im about to go blind..

A:Cant adjust brightness on HP DV5T using Windows 7 Home Ultimate

Did you install the hardware drivers and software needed
for your laptop after the windows 7 install?
Go here for downloads.

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I recently upgraded to Windows 8.1 on my Lenovo Ideapad and noticed my screen brightness wasn't as bright as it had been when I had run Windows 8. I keep trying to adjust my screen brightness, but no matter how low or high I set it, my screen's brightness
remains at what I would imagine a 50% brightness would be. Can anyone help me?

A:i upgraded to windows 8.1 and can no longer adjust my screen brightness

Ive tried all the suggestions above and more this is the only thing that has worked so far!
Try this....
Go to device manager - click display adapters - right click the windows driver (intel graphics 4000 or whatever) - update driver software - click search for update myself - then on the next window click "let me pick from a list of drivers on my computer
- then select microsoft basic display adapter

Edit..... come on microsoft this shouldnt be this hard computers should be getting more user friendly not less sort your s*** out!!

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i just installed Windows 7 Enterprise x64bit today
and i can not adjust the screen brightness
-before i installed the driver pack, it didnt even show this option

and after i installed the driver packs the option is there but its useless
i have put the screen brightness on minimum but the brightness is still maximum and my eyes are about to pop right now

somehow i don't have this problem on the x32bit version.

is there any driver that i have to install or any way to fix this ?

A:Windows 7 Enterprise x64bit [ Cant adjust screen brightness ]

What driver pack? Win7 is a driver-complete OS after you enable Automatically deliver drivers via Windows Update (Step 3) then run all rounds of Impotant and Optional Windows Updates until no more are offered when doing a Check for Updates after reboot.

Any drivers then missing should be imported from the HP Support Downloads webpage for your exact model.

If you have an HP then don't reimport any of the HP bloatware but sometimes a piece of software is required to make the hotkeys function correctly. You'll need to study the software posted for your model to see which is required. If you tell us the exact model and link us to the webpage we can often spot it for you if you need help.

Hopefully you followed the other steps for a perfect Clean Reinstall - Factory OEM Windows 7 because you will get and keep a perfect install to the exact extent you stick with the tools and methods given.

If you forced a bunch of old drivers into an OS which provides its own drivers then you will have problems.

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I've got the newest version of Windows Media Player 9 series on my XP Home edition. The video is very dark, even though my monitor Brightness is set to 100%. I know that when I have media actually playing, I can go to: View/Enhancements/Video Settings/ and set the Brightness to a higher setting, and this works fine. The only problem, is that when that media stops playing, the Brightness setting resets to the default, which is too dark. Besides being a hassle to set the Brightness where I want it every single time I use the Media Player, if I go to a web site that has a built-in Windows Media Player, there is no way for me to adjust that video, which is also always too dark. So I need to know how to adjust the Brightness setting on Windows Media Player so that it won't automatically reset to the default. Any ideas?

A:How to permanently adjust Brightness on Windows Media Player

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Well the title says it all... I updated Windows and brightness is now locked on minimum. Even if I press F12 or go into the settings, the brightness bar will fill but the screen won't show any changes at all. Sorry if I mispelled anything but I can barely see on this screen due to this issue. Can someone please enlighten me? Literally.

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Cannot adjust brightness on Lenovo Yoga 2 or connect to an external monitor after Windows 10 update (2017-06 Update for Windows 10 Version 1703 for x64-based Systems (KB4022405)).In 'Device Manager > Display adapters > Intel(R) HD Graphics' is showing with a warning triangle, I have searched for updates to this and the latest version is installed.I have been on to the Lenovo site and have installed all system updates.Some advice has said to install this update (below) but when I try I get the error message 'This computer does not meet the minimum requirements for installing the software.'https://pcsupport.lenovo.com/gb/en/products/laptops-and-netbooks/yoga-series/yoga-2-pro-lenovo/downl...Any ideas???

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dear Team,
             How to Adjust brightness contol in my dell inspiron 3542 model laptop OS-windows 7 ultimate.
in keyboard button cant adjust.  I tried lot of time. But cannot found. pls suggest me how to adjust in control panel? 

A:How to Adjust brightness contol in my dell inspiron 3542 model laptop OS-windows 7 ultimate

Thank you for writing to us!
To change the display brightness on a laptop

Open Power Options by clicking the Start button , clicking Control Panel, clicking System and Security, and then clicking Power Options.
Move the slider next to Screen brightness at the bottom of the screen. The brightness changes automatically.

Kindly let us know if this helps.

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the screen on my lenovo ideapad Z500 touch has dimmed and i can't adjust it back. i've tried the all the brightness settings i can find adn even updated the drivers but this hasn't worked, any ideas would help thanks.

A:i can't adjust the brightness

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Ok I've had vista for a long time, but I switched over to XP and everything is perfect except from one small detail that is kinda big for me. I can't adjust the brightness in my laptopIn vista all I did was press fn left/right arrows to adjust it. And from what I know this is the way you do it in most laptopsNow in this XP I had to install all drivers. Specifically from this page http://www.laptop-software.com/acer-softwa...5738zg-drivers/when I install the graphics driver, VGA intel driver for vista is the one that's used for my computer from that list, the brightness just goes to the max apparently and I can't use fn arrows to adjust it. I CAN use fn arrows up and down to adjust the volume so there is definitely something fishy here. If I uninstall the driver I can use fn to adjust the brightness normally so I know the problem is when I install the driverthis brightness is driving me crazy! the driver bring something called Intel Graphic Media Accelerator which has an option for brightness, but it seems as if that's a different type of brightness cause it just makes the screen duller. You can actually still see a lot of brightness coming out from the computer but the screen is very dull. And it still damages my eyesany help?

A:Can't adjust brightness

Please perform the following, so that we can get the exact specs of your computer. This will better assist us in helping you more.Publish a Snapshot using SpeccyThe below is for those who cannot get onlinePlease take caution when attaching a text file to your post if you cannot copy/paste the link to your post, you will need to edit it to make sure that your Windows Key is not present.

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my dell inspiron 5558 is log off while pressing f11 or f12 for brightness adjustments
 please solve my issue

A:cant adjust brightness

What operating system? That can make a difference. The top row F keys toggle between functions depending on using or not using the FN key-see your manual since diff computers have diff instructions. Try using the FN key with the F11, F12.

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I also have this problem. Can somebody give me a walkthrough how to uninstall the driver, and reinstall the old one?

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SorryI cant adjust brightness in my laptop like low or highpls help me by the valid answer

A:can't adjust brightness

Hi, Try the following. Download the graphics installer on the following link and save it to your Downloads folder. http://ftp.hp.com/pub/softpaq/sp72001-72500/sp72370.exe When complete, download and reinstall the Chipset driver on the following link. http://ftp.hp.com/pub/softpaq/sp69501-70000/sp69575.exe When the Chipset installation has completed, do not restart as prompted - instead, open your Downloads folder, right click on the graphics installer and select 'Run as Administrator' to start the installation. When this has completed, shut down the notebook, unplug the AC Adapter and then remove the battery.  Hold down the Power button for 30 seconds.  Re-insert the battery and plug in the AC Adapter. Start the notebook and let Windows fully load for a few minutes before checking if the f2/f3 buttons function. Regards, DP-K

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Hello All,

Badly stuck up.

Working with ACER Aspire E1-510, 15.6 HD LED LCD with Windows 8.


Have tried Control Panel, Fn keys.

Please help. Urgent.

A:Cannot adjust brightness -- Please help

Download Live Acer Updater and check for updates and download them.
Make you use also have installed Acer ePower Management Application .

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