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

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

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

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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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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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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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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

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 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 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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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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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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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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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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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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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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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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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    

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I suddenly was unable to adjust the brightness on this 3-day-old laptop.  Moving the slider from zero to 100% didn't change the light. I don't have an adaptive brightness setting. Google searches had me disable the sensor monitoring service, which did nothing. A user suggested rebooting while holding down Shift-F12 until reaching desktop.  This worked!  I can once again adjust brightness.  My questions: 1.  WHAT did Shift-F12 do?2.  Should I reenable sensor monitoring service?

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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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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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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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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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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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Hi guys, My laptop, HP Pavilion 14-AC121TX running on Windows 10, is only three days old, and already I can't adjust the brightness. Not through F2 and F3, and not through the Notifications or Settings bar. Even if I switch between 25%, 50%, 75%, or 100%, nothing happens. But I was able to use the F2 and F3 keys just the other day and they worked fine. If anyone could help me please, that would be so great. Thanks in advance.

A:Laptop brightness won't adjust

 Hi @vvildrness, Welcome to the HP Support Community! I read that your HP 14-ac121tx Notebook is not letting you adjust the Brightness. I am seeing that if you change the power plan options to balanced option in the Notebook it will help. Here is a link that will help. Go into your power options. Select Balanced and click Change plan settings. Click Change advanced power settings. Then save setting changes. Please let me know how this goes. To show appreciation for my efforts kindly click the Thumbs Up below. Thanks.

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Product Name: HP 550
Total Memory: 2.00GB (1.99 GB system+8MB video)
Processor Name: Intel(R) Core(TM)2 Duo CPU T5670 @ 1.8GHz (1800 MHz)


Hi there....I have read that you are able to adjust the brightness on FN and F7 and F8, but I tried that, no use...is there any other way to adjust the brightness on a laptop computer (info about the laptop - above) ?

just curious...


A:Adjust the brightness (HP 550 Laptop)

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Necesito ayuda. Tengo una laptop P500 y le instale hace varias semanas Windows 10. No habia tenido problemas hasta que hace unos dias deje de poder ajustar el brillo de la pantalla. Se quedo en lo mas bajo y no puedo aumentar ahora la luminosidad. He intentado de todo y aun sigo sin poder solucionar el problema. Puede alguien ayudarme?
Mod Edit:  Provided English translation:  I need help. I have a P500 laptop and install Windows 10. several weeks ago had not had any problems until a few days ago to stop to adjust the screen brightness . He stayed in the lower and I can now increase the brightness . I've tried everything and still can not even solve the problem. Can someone help me?

A:I can not adjust the brightness on my laptop P500 ...

Hi gabriel and welcome to the community,
Here's a thread with a possible solution.

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no error messages. I Can't adjust the screen Brightness.

A:I can't adjust the screen brightness of my laptop. how can I...

Likely the correct video card driver is not installed. Can you go into the device manager and see how the video card is described under "display adapters"?

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Hey everyone, I don't know if you know me, but I was Wii Master 64 on Seven Forums, so, it's good to be here! I decided to change my name, but I couldn't think of anything better, so I just went with what it is lol.

Anyways, I about a month or 2 ago, I went and bought a new laptop since my old one was starting to die on me and stuff. It's a Samsung ATIV Book 4, and it's really nice. This is the first hick up I've had with it so far, and I noticed it happening today. I noticed my screen was really dim today as I was using it, so naturally, I use the Fn key to turn it up, but nothing happens. Up in the top left of the screen, it shows a little brightness meter going up and down as I turn it up and down, but nothing changes. I went to the power options menu and tried to adjust it there, and alas, nothing happened. I googled this problem to see what I could find, but nothing really helped... I even tried disabling the display driver and restarting it, but that didn't do anything. What do you all think?

A:Laptop screen brightness won't adjust

Hello That Guy, and welcome to Eight Forums.

You might see if you may be able to use one of the options in the tutorial below to adjust your screen brightness instead.

Screen Brightness - Adjust in Windows 8

Hope this helps,

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Basically, I've had this Lenovo G50-45 Laptop for over 2 years and due to it being in constant transport the HDD has been knocked around, the magnets have lost magnetism and the drive became really slow. The know the story. I installed a 120GB Samsung SSD into it, installed Windows 8.1 and it auto-activated as this Laptop came with Windows 8.1 so I didn't require another serial. It works fine, it's so quick (was previously unbelievably slow). However, the brightness won't adjust. I assume this is because it requires a driver. I attempted to download and install a driver but the only drivers available are 64 bit drivers and my Laptop is 32 bit.

What can I do?

laptops and netbooks :: lenovo g series laptops :: g50 45 notebook lenovo Lenovo PC Support

Thank you for your assistance in advance.

A:Replaced laptop HDD, brightness wont adjust

Only thing to do is have a 64bit operating system. Try to get the recovery media on your link.

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Hi guys, this is my first post, sorry if it's not quite in the right area...

I recently had my HP ProBook 4545s totally restored and had the original harddrive swapped out for a PNY 250GB SSD. I can't find any interfaces to adjust the screen brightness, which is too dim, the fn brightness controls aren't working, and in general the contrast and displays look bad as well.

I tried refreshing and updating the General pnp Monitor driver, but this did not work. Do I need a new driver? Does someone know another way? Any help is greatly appreciated.

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Basically, I've had this Lenovo G50-45 Laptop for over 2 years and due to it being in constant transport the HDD has been knocked around, the magnets have lost magnetism and the drive became really slow. The know the story. I installed a 120GB Samsung SSD into it, installed Windows 8.1 and it auto-activated as this Laptop came with Windows 8.1 so I didn't require another serial. It works fine, it's so quick (was previously unbelievably slow). However, the brightness won't adjust. I assume this is because it requires a driver. I attempted to download and install a driver but the only drivers available are 64 bit drivers and my Laptop is 32 bit.

What can I do?

laptops and netbooks :: lenovo g series laptops :: g50 45 notebook lenovo Lenovo PC Support

Thank you for your assistance 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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I have this issue on my Dell Inspiron 13 7000 series for very long time. I tried searching Google and Dell support community and I did:
Control Panel > Device Manager > Display Adapters > Intel HD Graphics 5500 > Driver > Update Driver > Search Automatically.
It fixed.
18:35 on 25-Dec-2016: Sorry bro, I did as above; it fixed but when I try pressing the brightness button then It come back problem again: can not adjust the brightness. Hic hic
19:00 on 25 Dec 2016: I even try downloading and installing the latest Intel Graphic Driver (issued on July 2016), but just after a while, the screen comes back very dim.
I accidentally discover this: Setting --> Display --> uncheck the box "Adjust my screen brightness automatically".
Sorry, but stupid Windows!!!!

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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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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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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'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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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 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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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 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,Laptop which is facing the problem, is Lenovo Z500.Windows 10.A problem that is known, but I can not deal with it.I installed 5 different drivers for the integrated graphics card, changed the parameter in the register FeatureTestControl parameter to FFFF, I installed various energy management. I changed the HD4000 driver to the basic one from Microsoft.Nothing helps - when clicking the dash / dimming, a bar appears, which moves as it should, but the screen is still the same dark.As I enter the settings -> screen, and there I set the slider, strange things happen, the screen goes self-darkening, dims itself, literally as if the laptop had a light intensity sensor ..The BIOS can be used to light up the screen, it shines as it should, it does not get dark, etc. The matrix is okay.Anyone have any suggestions on what you can do here?Actually, for me, brightness can be 100% all the time, but the way with FFFF in the registry does not help.

A:Lenovo Z500 - Cannot adjust brightness in Windows 10, need fast help..

Hi dzejkoboo!
Welcome to the Community,
May we know how did you get Windows 10 in your laptop? Upon checking, the Lenovo Z500 is not compatible with Windows 10,
Expect that there will be compatibility issue if this is the case.
Admin note: link shortener converted to full URL for clarity

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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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