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Laptop brightness won't adjust

Q: Laptop brightness won't adjust

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.

RELEVANCY SCORE 200
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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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RELEVANCY SCORE 76.4

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...

Thanks.
 

A:Adjust the brightness (HP 550 Laptop)

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RELEVANCY SCORE 75.6

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,
Shawn

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RELEVANCY SCORE 75.6

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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RELEVANCY SCORE 75.6

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.
 
Regards,
Dave 
 
 
 
 

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RELEVANCY SCORE 75.6

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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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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RELEVANCY SCORE 74.8

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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RELEVANCY SCORE 74.8

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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RELEVANCY SCORE 74.8

Hi

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.

Thanks
Alex

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RELEVANCY SCORE 74.8

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













Solved!

Go to Solution.

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 ?
 
Thanks
Alaa





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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RELEVANCY SCORE 74.8

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

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

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RELEVANCY SCORE 74

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
 
Thanks.

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?
 
Dick

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RELEVANCY SCORE 73.2

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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RELEVANCY SCORE 73.2

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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RELEVANCY SCORE 70.8

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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RELEVANCY SCORE 70.8

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

Hi,
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.
Thanks
Robin

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RELEVANCY SCORE 70.4

OS: Windows 7 Home Premium
64-bit
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

Hello,

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

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RELEVANCY SCORE 70.4

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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RELEVANCY SCORE 68.8

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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RELEVANCY SCORE 62.4

i can not adjust my HP 15-ac022nia brightness after i mistakenly deleted the Os that came with it 8.1 but i installed windows 10 instead now i can not adjust my brightness what can i do?

A:Re: Cant adjust brightness

Hi: The only suggestion I can offer would be for you to install the graphics driver and restart the PC. This package provides the driver that enables the Intel High-Definition (HD) Graphics in supported notebook models that are running a supported operating system. If highdefinition multimedia interface (HDMI) video output is supported, this package also installs the HDMI Audio Driver. http://ftp.hp.com/pub/softpaq/sp78001-78500/sp78245.exe

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RELEVANCY SCORE 62.4

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.
www.dell.com/.../manuals

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RELEVANCY SCORE 62.4

Hello All,

Badly stuck up.

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

UNABLE TO ADJUST BRIGHTNESS.

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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RELEVANCY SCORE 62.4

I can't adjust the brightness on my laptop.I have tried;Method 01.Open Windows Control Panel, click on Hardware and Sound, then in the Power Options Section, click on"Change power-saving settings." There's a slider to adjust brightness at the bottom of the window. Method 02.Open Windows Control Panel, open Windows Mobility Centre and adjust the brightness here Method 03.On most of the Notebooks, tapping F3 and F2 Key will often increase and decrease the screen brightness None of which work.

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RELEVANCY SCORE 62.4

Hi everyone,

Does anybody know how to adjust the brightness for DVDs in Windows Media Player?

My video settings only work for downloaded videos, not for DVDs.

Thanks,

Larry
 

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RELEVANCY SCORE 62.4

I find the white of the win 10 windows just easy to bright, especially late are night. I don't wanna reduce my monitors brightness cos i have to up it again after to pay my xbox.is there a brightness setting?

A:Adjust brightness?

Originally Posted by Steveyg777


I find the white of the win 10 windows just easy to bright, especially late are night. I don't wanna reduce my monitors brightness cos i have to up it again after to pay my xbox.is there a brightness setting?



You have to use your monitor buttons or your graphic card settings to change it

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RELEVANCY SCORE 62.4

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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RELEVANCY SCORE 62.4

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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RELEVANCY SCORE 62.4

2 month ago i had this problem so i searched for a solution here (get back to the basic display adapter ) and it worked fine and no problem appeared . but now whenever i want to play a game like begone or heroes and generals my cpu usage become 100% and i get 20 fps usually 100 also i cant play i
so i need ur help guys

all drivers are updated :

and if i want to play games i have to install the latest driver but i cant adjust brightness

A:can't adjust brightness

why someone help ?

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RELEVANCY SCORE 62.4

Hi all, Some of the user reporting their screen brightness adjust by iteself.Use HP display tune and check the setting, it automatically adjust to 50 % of brightness.  i check the  update of hp display tune, nothing news about this software. Please guide me how to fix this annoying issue.  

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RELEVANCY SCORE 62.4

How'dy! After formating and updating my G50-70, the brigtness stopped working. i can't adjust it with hot keys or manually. Tried to update the graphics driver but that didn't work either.  Windows 8.1. Also draining the battery very fast with only usage of chrome.Please help!

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RELEVANCY SCORE 62.4

computer came new with windows 10   IT now has windows 8.1 on it   Windows 10 was taken off and windows 8.1 was put on it  by computer repair shop   Before I bought it at a pawn shop

A:can not adjust brightness

Hi: If the brightness is stuck on maximum, you probably need to install the graphics driver. The problem is that HP only supports that model for W10. See if this W8.1 graphics driver works... This package provides the AMD High-Definition (HD) Graphics Driver and Catalyst Control Center for supported notebook models that are running a supported operating system. For notebooks with switchable graphics modes, this package includes drivers for both graphics processing units (GPUs). Switchable graphics enable users to switch between a power-saving graphics mode (normally used under battery power) and a high-performance graphics mode. If high-definition multimedia interface (HDMI) video output is supported, this package also installs the HDMI Audio Driver. http://ftp.hp.com/pub/softpaq/sp72501-73000/sp72773.exe

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RELEVANCY SCORE 62.4

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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RELEVANCY SCORE 62.4

I can't adjust brightness on my Thinkpad X1 Yoga. I've run all the latest driver updates, used lenovo companion and everything is up to date, including bios. No matter what I do the brightness will neither increase or decrease. It's stuck on full brightness, so it's not too bad, and I'd be loathe to send it in for repair and lose a week or work to get it fixed. Is there anything anyone can suggest that might help software wise? Thanks!

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RELEVANCY SCORE 62.4

my bettery was damage,so i cannot dim my brightness,what can i do in this time 

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RELEVANCY SCORE 62.4

Recently I noticed that i cannot adjust the brightness on my ENVY laptop. This is a main issue because having a bright screen in a dim lecture hall hurts the eyes. Also for some reason, once i plug in the power cord, the option to adjust the brightness happens. I've tried updating the drivers, and nothing has changed. I have also tried using a previous version of the drivers. Nothing has worked so far. Any help would be appreciated.

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RELEVANCY SCORE 62.4

I am not able to change the brightness on my screen when using the battery or when plugged in. It is stuck at the brigthest option even if I decrease the brightness via the function key on my keybord or via the control panel. My display and monitor dirvers are up to date and are both enabled. Battery saver mode is not turned on. Please let me know how I can resovle this issue. 

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RELEVANCY SCORE 62.4

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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RELEVANCY SCORE 61.6

Hello,I am updating my OS from windows 8 to windows 10 64bit. After that i can not able to adjust screen brightness.

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RELEVANCY SCORE 61.6

My LCD monitor is a little over a year old and I feel it is losing brightness. Is this common? How do I make it brighter? I went through some menus with the buttons on the monitor but there isn't any options about brightness.

Nothing in the Control Panel adjust brightness either but I rememberd adjusting brightness somewhere.

So how do I make my monitor brighter?
 

A:How do I adjust my monitor's brightness?

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RELEVANCY SCORE 61.6

I just received a second-hand T550 and it is a great machine, with one problem: I cannot change the screen brightness. I have done a clean reinstall of Windows 10 and let Lenovo System update download all the drivers, but I cannot change the brightness anywhere. Not with the Fn keys, not in the notification center, and it doesn't even show up in the power options. Where on my other laptops there are options for turn off display, put computer to sleep and brightness, on my new T550 the brightness option is non-existent.I have installed the latest:intel 5500HD driverhotkey integrationmonitor inf fileAnd still, it is not working. Does anyone have a suggestion for me?





---------------X220 Tablet 4298R45; X200s 7470CR9

A:T550 can't adjust brightness

It means someone changed the LCD to a non-Lenovo panel.  The edid (configuration chip) has the wrong information.

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RELEVANCY SCORE 61.6

I have a Sony Vaio Y 13" and the screen's brightness cannot be adjusted. The slider doesn't change anything when it is moved. Is there anything I can do or is it just gonna be like that for a while?

A:Can't adjust screen brightness

Is the slider that you access via Win + X

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RELEVANCY SCORE 61.6

My model is 15-ay019TUI cant see bluetooth icon and intel graphics option even after installing drivers downloaded from hp site for my device... I cant adjust brightness.. Please help

A:Re: why can't I adjust the brightness of my screen on my

Hi @Shubhamrawat, Welcome to the HP Forum! I am pleased that you have become a HP Forum member. It is such a wonderful site to find answers and tips. Here is a link to guide you to having the most rewarding experience and answer any concerns about posting: First Time Here? Learn How to Post and More What operating system are you running? I grasp that you are experiencing a difficulty, with Bluetooth, graphics and adjusting the brightness of the display.  When I checked the specifications for your notebook, I noticed it came with FreeDOS 2.0.  You have switchable graphics on your computer and I would be happy to help with installing the drivers but do need to know what your operating system is. In the meantime, you could try running the HP Support Assistant  to aid with drivers.  When you have resolved your difficulty, would you choose "Accepted Solution" on that post to alert other members and visitors to your success and perhaps help them. To show appreciation for my help. please click the "Thumbs Up Icon" below.

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RELEVANCY SCORE 61.6

Already checked all settings including the ones on the lenovo app thing. Went to device manager and checked the generic pnp montior to make sure it was on it was. Updated my laptop to recent windows 10 did nothing. So please help!

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RELEVANCY SCORE 61.6

hi again, i need to adjust the brightness on my E6400 laptop, windows 7 professional laptop. my laptop has a few buttons with a little "sun" looking button w/ arrows pointing in different directions. one of them has a sun logo and says "auto" . none of these buttons adjust anything . i did try to use the "FN" button and doesnt work. i also went to the power management to change settings but i guess my laptop is so old that it doesnt have that option? im trying to save energy and also i hate the brightness. help plz

A:another question: adjust brightness

Hi,
Thank you for writing to us!
Adjusting the brightness on a Dell Latitude E6400 can be done with just a few strokes of the keyboard. Most laptops make this a quick task. Pressing and holding the function key (abbreviated as ?Fn?) and pressing the up, or down arrow keys increases and decreases the brightness. You can also press Fn and F1 and F2 or F7 and F8 to increase and decrease the brightness. Immediate results should be seen on the screen making your screen darker or brighter.
You can also change the brightness settings for some displays by using an on-screen menu, and then setting the brightness and contrast in the resulting menu. Many times, you can view the on-screen menu by pressing a button on the front of the monitor.
You can make the display on my Dell Latitude E6400 brighter to reduce battery life.
Press the Start button, click Control Panel, press System and Security, and then select Power Options.
Drag the slider next to Screen brightness at the bottom of the screen. The brightness changes automatically.
Kindly let us know if this works and also private message the service tag and email address.
Thanks
Robin

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RELEVANCY SCORE 61.6

Hello everyone, I just yesterday received my T450 and in general I am really happy.What drives me a little crazy is, that I cannot adjust Brightness. I'd be really happy, if someone could help. The system:T450Windows 10 <-- cleaninstalledAll Drivers up to date (thinkvantage-thingy says so)---------------- The Problem:Cannot adjust brightness via FN + F5/F6Cannot adjust brightness in the energysaving optionsSwitching between energysaving mode and normal mode doesnt affect brightnessCan adjust brightness with the Intel HD Graphic tool, but it looks weird. ---------------What i tried:-Updated BIOS- deleted Intel drivers and loaded the newest one from lenovo homepage- deleted pnp-monitor and reinstall- deactive/activate pnp-monitor This annoys me kind of hardcore. I travel 4 hours at 3 days a week. I bought this notebook to use it in this time. Adjusting brightness kind of is key in a train. So safe me and earn everlasting love!  

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