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T450s function key brightness doesn't work

Q: T450s function key brightness doesn't work

Hey everyone, I'm running a T450s Thinkpad on Win10. I have a very annoying issue; the function key for adjusting screen brightness doesn't work anymore. I guess it got 'broken' by Win10, but anyway, i can get it fixed. Tried installing new drivers for graphics and monitors but nothing helped so far... Grtz,Ewoud

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Preferred Solution: T450s function key brightness doesn't work

I recommend downloading and running DAP. It can help sort out any driver and firmware related issues on your system

It's worked out well for many of us in the past.

You can download it direct from this link http://downloaddap.org. (This link will open the download page of DAP so you can save a copy to your computer.)


I noticed my fn brightness keys did not work. I installed a new driver for the hotkeys and it worked again They worked untill I closed my laptop lid (have it set to do nothing) then when I reopen it the brightness keys stop working. If I restart the computer, they work once more untill I close and reopen the lid, then the problem happens again. Does anyone know why this would happen?

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Hi. Using a crappy Dell Inspiron B130 w/ Windows XP here. A while ago, a fun little accident left certain keys on my keyboard completely inoperable. I didn't realize this, but the arrow up was one of these. Last night, I had the computer on in the dark and decided to use fn+down to turn down the brightness. Oops. fn+up does nothing to turn it back up.

Edit - cut out my ramblings, I fixed it myself with some adjustments in the BIOS. D'oh!

A:Solved: Function Key for Brightness does not work

Have you tried plugging in a usb keyboard and trying the fn+up button combo? Also maybe the on-screen keyboard. I am not sure if they will work but worth a shot.

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I purchased Dell Inspiron 5558 (with Windows 10) just two months ago (Nov 2015). Everything was working fine. However, recently I started to notice an annoying thing with the function keys F11 and F12 for reducing and increasing the brightness respectively. 

Without using the Fn key (next to Windows key), if I hit F11 it was reducing the brightness and F12 was increasing the brightness earlier - as expected. Now, sometimes, the laptop monitor goes to sleep mode the moment I hit F11 or F12. I have to press the power button again to wake it up. This behavior is very off and on and not consistent.

Did any settings get changed? How to fix this? Please help.

FYI - I have not changed the BIOS settings from default which could be multimedia. I can say this because other multimedia keys in the same row behave normally (even when this strange behavior is noticed in F11 and F12).


A:Function keys for Brightness control (F11, F12) do not work as expected

Hello Shashi,
The settings for those FN keys are handled by the Dell Quickset Utility, and later the Dell Command Configuration application, so any changes you would want to make would be done in that application.  
I would suggest going into that application and seeing if you can change the settings.   Putting a system to sleep is one of the functions available so perhaps the configuration has changed.   If you want additional help please click on my Dell Todd username and send me a private message with the Dell Service Tag of the system and I'll see if I can help.   Please keep all discussions and troubleshooting here in this thread so that others, with the same questions or problems, can see what is done to resolve.

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Good day Lenovo users: I recently purchased a Thinkpad t450s form Canada Computers in Toronto Canada as refurbished, it has touch screen which i like, but ever since i got this laptop i noticed this model has no fingerprint, battery dies in like less than 45 mins, and when ever i connect Audio jack for headphones and i tried many different connectors and headphones, the audio continues to play through the speakers... it did work first few days, but all of a sudden it stopped. i did bios update, driver uninstall and re-install, driver update says its up to date, windows is up to date....If anyone can help me with these to better understand what actions to take, that would be greately appreciated!!! Thanks for your times!

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The brightness in my laptop stoped woking few days ago. The shortcuts in f2 and f3 are not working either and I can't even change the brightness from the control pannel. I've tried many things seen in the forums but still nothing.What should I do? Thanks

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My brightness is at maximum and it's hurting my eye badly. I've recently sent my laptop to be reformatted due to many problems and my laptop brightness was at its maximum. Asked the guy for advices and he say there's nothing that can be done. I used to click FN + up/down keys and it work. OR i will go to power options and change the settings, but now both actions doesn't work. Please help me as it really hurts my eye. Thank you

A:FN keys doesn't work to reduce brightness

Hi michelewjy,

Welcome to Vista Forums.

I recommend you go to the laptop manufacturer's web site and find the drivers, firmware, and/or software appropriate to your graphics card and your monitor and your version of Vista and download them and update your system with the revised versions. Let's see if that helps. This may also be related to the SFC problem in your other thread - so I will check especially for anything that seems to apply to this issue.

I hope this helps. If not, post back and we'll try something different.

Good luck.

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So, I have this problem, since I started up my laptop this morning my windows had some issues: at the beginning a game I frequently played started running at 6 fps(usually it goes at 50),then I couldn't change the brightness, and now I can't activate my Wi-Fi. I tried to restore the windows but it always stops and there a Pop-up saying "couldn't restore windows". What should I do?

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after a dramatical crash of hdd I have to change with another .

I used restore system dowloaded in a usb key and everthing worked prperly except fn key that doesn't open menu with grey keys .

in eg. I can't turn-off wi-fi device . someone can help me?

thanks a lot for now .

P.S. I apologize for my poor english so that I'm asking if is possible respond esily or better in italian .

A:Function key doesn't work properly

May I ask you what notebook model do you have and what Windows system is currently preinstalled?

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I use Xp Home and nwo whenever I try to search somethign , ANYTHING , i get a dialog box , on which only F....... and some ... aer writtten , and there is no error no nothing , just that dialog box , on which I hve only 1 button to click after which I go back to search page.
Is there any service required to run in the startup for it to work ??

Coz I have turned off many services , but that was a long time ago, this started happening recently

A:Search function doesn't work now

Have you checked to see if the search function works in SafeMode?

Have you installed any updates to the current software like your AV program for instance?

Anyway, the first thing I'd try would be to run SFC from a command prompt within Windows XP and see what happens

sfc /scannow

BTW, in reference to the services, I doubt that's an issue. Windows XP will start a service if it's needed, regardless of whether you've disabled it.

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My function keys doesn't work. I have tried to find drivers on HP support, but can only find for OP Windows 7.BR/Torsten

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Newly installed Windows XP has no search function

I repeat NONE

A:My Search function doesn't work

If you have taken anything out of startups via msconfig please go to Start – Run – type in msconfig – click OK and click on the Startup tab. Put a check mark beside everything you see listed there and then please do the following:

Click here to download HJTsetup.exe

Save HJTsetup.exe to your desktop.
Double click on the HJTsetup.exe icon on your desktop.
By default it will install to C:\Program Files\Hijack This.
Continue to click Next in the setup dialogue boxes until you get to the Select Addition Tasks dialogue.
Put a check by Create a desktop icon then click Next again.
Continue to follow the rest of the prompts from there.
At the final dialogue box click Finish and it will launch Hijack This.
Click on the Do a system scan and save a log file button. It will scan and then ask you to save the log.
Click Save to save the log file and then the log will open in notepad.
Click on "Edit > Select All" then click on "Edit > Copy" to copy the entire contents of the log.
Come back here to this thread and Paste the log in your next reply.
DO NOT have Hijack This fix anything yet. Most of what it finds will be harmless or even required.


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Win 7 Home Premium version Svc pack 1; Toshiba Satellite L505. I can't get the Send To function to work when I right click in Librarys. Specifically, I want to send a picture to One Note. I have done the proper steps with no result. What am I missing?

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When I go to "search" I get the basic box but it is empty. There are no options within the box. What files make up this function? If I can pinpoint what is missing I think I can get it working again.

I search by hitting Programs, then search. Win XP 1 gig ram, 250 gb HD etc. I think a malware program deleted a file thinking it was bad.


A:Search function doesn't work

Hello Bill

Open Explorer and go to the Windows\Inf folder.
Locate the srchasst.inf file. Right click it and select Install.
You'll need your XP CD or the files from the I386 folder.

The Windows\Inf folder is a hidden folder. You can adjust your Explorer Folder Options (View tab) to Show hidden files and folders.
Windows Explorer/Tools/Folder Options/View
Check ?Show hidden Files?
Uncheck ?Hide protected system files?

You can also click Start, Run and enter %SystemRoot%\Inf to open directly to the Inf folder.


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I buy Lenovo Ideapad S300 and update from OS Linux to Win 10, but after i change to Windows 10, my brightness button (f11 and f12) doesn't work. I try to update my video driver but thats not affected. How i can resolve that?

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Occasionally, when resume from hibernation/suspend, display brightness control doesn't work. Means that Fn + F2,F3 doesn't work, change from Windows Power Options doesn't work, change from intel graphic doesn't work.
Anyone know if I have to restart some services to get it working? It's occasional and I can't find anything exact in EventLog.
My system is HP Probook 4230s with Core i5-2410 with intel HD3000. Latest patches on both Win 7 Pro 32-bit and intel driver.
Restart machines solve the problem, re-hibernate or re-suspend machine occasionally solve the problem, but mostly not.

A:LCD Brightness control doesn't work after resume from sleep/hibernatio

See if HP have an update for their firmware or function key control drivers. I know its a new pc, but its worth a shot.

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I recently upgraded my 3 computers to Windows 8.1. Only 1 PC (INTEL) is working as it should. The other 2 PC's are AMD based and the search function is acting funny. When I search it gives my the results, but when I click on says I'm looking for DEVICES AND PRINTERS and I search "printers", it gives my the result. If I click on DEVICES AND PRINTERS tab it doesn't respond, but when I click on say my Canon printer's link to MY PRINTER it responds. I ran SFC/SCANNOW and also DISM (Micorsoft actually ran it) and nothing changed. It sometimes locks me onto the Meto screen and I have to reset the PC to get back to my normal Desktop. When it does that non of the Metro tiles works. Micorsoft technician also tried to create a new user account which comes out blank and when creating another account, as soon as you log into the account it immediately signs out of it and don't allow you access. I tried to refresh the pc, but the frustrating part is, it asks you to choose a keyboard layout, but disables all USB and PS ports. Now how do I choose a keyboard layout, unless I have a touch screen. Microsoft really didn't think this trough. Is there anybody that perhaps now how to get the searh to work. Oh I do have searchindex.exe in my system32 folder and in services I stop and restarted Windows Search, but still no change.

A:Search function in Windows 8.1 doesn't work as it should

Problem solved. After Microsoft technicians tried everything and my PC crashed I decided to just redo. Then I found out that a program called Wisecare 365 that I was running on my Windows 8 PC caused all the problems. It went and deleted registry and other files that windows 8.1 need to operate with. So it's no longer on my PC and so far Windows 8.1 is running fine.

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I can't use or run "restore" anymore on XP machine. I have no idea what happened. I don't seem to have any other problems.


A:Restore function doesn't work anymore

It sounds as if System Restore may have become corrupted. You can try reinstalling the feature. Here's how:In Control Panel or Windows Explorer, click Folder Options and then View tab
Under Advanced Settings, scroll down and find "Show hdden files and folder." Check the box.
Find "Hide extensions for known files types." Uncheck that box. Click Apply, OK.
In Windows Explorer, find your Windows folder (usually on the C: drive but not always). Navigate to the inf folder and open it.
Find a file named sr.inf
Right click the file and select Install.

Important: This creates a new installation of System Restore, but it will delete any restore points that you had created previously.

kind regards,

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I have about 600 gigs of storage space and windows search doesn’t work so I’m a bit frustrated at this problem.

When I run windows search function I get 2-3 recently created files and nothing else. The process of getting these results take less than a second sometimes and it doesn’t comb threw my folder structure the way it used to. I have indexing on and I’ve had indexing off but this does not effect the results. I’m not sure when this problem first popped up but I assume it was about 4-5 months ago when my step dad changed my network settings because of some bad advice from some tech support who didn’t know what kind of system I had.

I’ve tried using “Windows Desktop Search” and that didn’t work either so I uninstalled that. I don’t want to use 3rd party search programs just because the windows search has worked fine for me so far with the exception to this. Any help is appreciated


A:Windows search function doesn't work

Start -> Search -> Files and Folders -> More Advanced options -> check around there..

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"Send a link" function does not work
I get a message that says “Microsoft exchange server is unavailable”.

the exchange server is available however, because i'm able to send email, and use all the functionality of email.

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In Excel 2003, I have instructed that there be a sum of the dollar amount based on the grouping of each change of account number in another column.

What happens is that there are several subtotals of the same account number.

How to rectify?

A:Subtotal function in Excel doesn't work as it should

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I recently installed new hard-drives, 1 master and 1 slave. I still have all of my data from the new drive transfer, I can install and run programs on my new drive, but some of existing applications aren't working properly.

The most critical is my problem with " System Restore". Everytime I run System Restore from the Start Menu > Accessories > ... , I get the pop up for debugging it. The pop up is the grey box that says "Send Error Report or Don't Send". While it was working I used it everyday, but now it always crashes when I open it up. What happens if something bad happens to my PC, how will I be able to restore my PC to an earlier secure stage? Please help me, it's critical that I get use of my System Restore back again. Do I have to reinstall WinXP again or what?

Microsoft Word keeps telling me to "repair" the program everytime I open up a word document. Now, I'm able to open up a word document, read it, edit and save. But when I open them up it also talks about the repair, a "Windows Installer" box pops up, then disappears, afterwards telling me to reinstall\repair Word 10.0 or something like that because there's an error in Microsoft Office. Should I reinstall\repair my Microsoft Office CDs?

A:System Restore function doesn't work!

MS-MVP Bert Kinney has a terrific site on System Restore, including how to use the .inf file to restore the service. Recommended: http://bertk.mvps.org/

Bert also is the moderator for the System Restore Subforum on AUMHA. You might want to peruse the answered questions there or leave a new post: http://www.aumha.net/

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After recently purchasing a new pc, I have found that my copy and paste function no longer works correctly. When I copy something, half of the time it does not paste, or pastes a random single letter.

Is this a problem that could easily be fixed, or could it be something that has infected my pc?

Thanks in advance.

A:Copy and Paste function doesn't work properly?

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I've had this problem for quite some time and I think its about time I tried to sort it out.
I have a Toshiba satellite Laptop running windows XP and the latest WMP is my preferred media player.

About a year ago I had a Virus on this laptop that wouldn't allow me to connect to the internet. A friend took me through the steps in the security and the web part of this board and we dealt with the virus.

Ever since the play all function in windows that appears when you have media files in a folder has not worked. When I click play all I see the hour glass briefly but then nothing happens. If I try to select the files I want to play right click and then play all again nothing happens.

I don't get any warning or error messages, its as if the computer is ignoring my request

double clicking on a single file opens it in WMP normally.

I don't know if it is related but when this happened the quick media buttons on the laptop which allowed me to open WMP, play, pause, stop and select next track also stopped working and still don't.

Thanks for your help.

A:Play all function doesn't work for music or video files

To fix the file playing issue, try reinstalling WMP.

The buttons need special software installed and running. Try downloading it from Toshiba and reinstalling.

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Recently I've come across a situation where my computer will boot with no keyboard function. I cannot enter bios, boot in safe mode, etc. However, upon Windows 7 loading I have full function of the mouse. That is until I hit any key on the keyboard, then I lose left click function only. I can still move the mouse, I can still right click with the mouse. I also noticed that caps lock and number lock did not work either.

I figured that maybe the keyboard was bad and so I plugged in a different brand new keyboard and booted up the computer. Everything worked fine. The keyboard worked flawlessly, the mouse had no problems at all.

Restarted the computer to install windows updates, and upon the next boot I once again was left with no keyboard function and then once again no left click function.

These problems only began after a program was uninstalled due to it freezing up during use. (The program was a puzzle game that was purchased and installed from a reputable game website)

I am at a complete loss, and I cannot tell if this is a hardware problem or a software problem or even a virus problem.

Both the mouse and keyboard are USB. Other USB devices work fine, including a headset, a printer, and a scanner.

Any help is much appreciated!

Thanks in advance.

A:Keyboard doesn't work, then mouse begins losing function

No one can help me?

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Updated Intel Graphics drivers today to ver. from 28/11 too see if this would help on the missing keystrokes issue. Then the brightness didn't work, screen was on 100%. Tried uninstalling drivers. Still didn't work. Had to roll back Windows. Anybody having this problem too?

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I have a Gateway PC, 5 or so years old, running Windows XP Media Edition.

A few days ago, soon after having installed some Windows updates, my wireless Microsoft mouse and keyboard stopped working. I plugged in a spare PS/2 mouse, and in the bluetooth dialog box removed, added, and reconnected both components. The wireless mouse and keyboard worked, but not for long. I then uninstalled and attempted to reinstall the mouse and keyboard software (except that the software apparently had not uninstalled). This did not fix the problem.

From here on I tried so many things, I do not recall in what order. I did a system restore via Advanced System Care, then tried again using a much earlier date. After a very long wait I was informed that my system could not be restored to that date.

I ran Reimage, which reported a moderately severe stability problem with numerous crashes. This program fixed and replaced files, etc, but got stuck while attempting to reinstall Windows updates (during repairs, Reimage removes Windows updates and reinstalls them afterward, but for some reason this last step has never worked with my computer and I've had to reinstall the updates manually). The computer was frozen and I was forced to turn it off using the power button. When I turned the computer back on, I had no working keyboard or mouse, and again had to use the power button to turn off the computer.

I plugged in a PS/2 keyboard and started the computer in bios, resetting bios to default sett... Read more

A:Keyboard has limited function in safe mode, and mouse doesn't work at all

Advanced System Care, which fixed a lot, especially in the registryThe IObit program is just a Registry Cleaner that will repair almost nothing, except your hope - You will never know if it repaired anything -You are better off to remove all Chinese IObit programs and only use proven programs for your computer Malwarebytes and Advanced System Care will not operate correctly on the same system, as both clash with each other Malwarebytes Anti-Malware is a proven and trusted program world wide, while IObit is forced on Chinese users as their options are limited.Do you have a Regular Antivirus program that is active and is scanning at all times ??Thank You -

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I can not adjust the brightness either from the keyboard or from the screen 

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I recently decided to upgrade my default screen in my T450s to a newer 1920x1080 ISP screen that I found on Amazon. The old one was getting scratched by the keyboard because I keep the laptop in my backpack during school. I had been doing some research and apparently a lot of 14" screens out on the market have a white listed EDID with Lenovo, and thus aren't compatible with the brightness funcion keys (I think I understood that correctly, I'm no tech genius). Is there any way to make the brightness keys work with the new screen, or should I return it and buy a different screen with a Lenovo friendly EDID. Please help, I've spent way to long trying to fix this issue.  I have... - (re)Installed many different video drivers from intel and lenovo.- Tried editing the EDID of the new screen to match the EDID of the old screen.

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hi guys, i installed a new screen FRU 04X5916 from the Lenovo website, and now I can't adjust brightness. Everything is up to date. can someone help point me in the right direction?

A:T450S installed 04X5916 from Lenovo Encompass - can't adjust brightness

That is a common problem with aftermarket screens in 450-series machines, but I have never seen it on real Lenovo screens.

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Hello, After I install all recent upgrades from Lenovo System Update, the volume control (F1, F2, F3) stopped working on my Lenovo thinkpad T450s. When I test it on keyboard tester, it showed that F1,F2,F3 does work, but the volume never worked. I tried to press the keys with the function key and without the function key, neither way worked. What should I do to fix it? Any help will be appreciated! Thank you!  

A:T450S Function Keys (Volume) Issue

I have the same problem after restart it works for 30 seconds only.

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I've had windows 10 for several months (previously had windows 7). Up until yesterday, when I clicked on "all apps" an alphabetical list would come up, I'd scroll to what I wanted, and click on it. If there was an item with a sublisting, like Microsoft office a down symbol would appear. Click on that and the sublisting would appear and I could select word, excel, etc. Now when I click on the down symbol it just flips to an up symbol ^ and no sub menu appears. I'd really like to get to excel. This failure to bring up a sub menu happens for every down symbol, not just Microsoft office. What do I do? Try to re-load Windows 10? Uninstall and reinstall Office? Thanks

A:"All Apps" function doesn't work properly

Hi, do you have any idea what happened yesterday? For example, if you look at your update history- did you receive an update?

Do you have System Restore on, and do you have any useful restore points?

Do you use system imaging (Windows Backup and Restore) or disk imaging which we keep strongly recommending here; that means you can restore an image previously created and get your Windows back running as was without technical help - and even recover from a disk failure or an unbootable PC? (e.g. Macrium reflect (free)).

Those could give you ways to recover.

What is your build version? (Windows key + R, winver).

If you haven't started using those vital recovery methods yet, you could try this:
Start Menu Troubleshooter in Windows 10 - Windows 10 Forums

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The brightness settings on my NV53 gateway are no longer available. The fn up or down combination to change the brightness are no longer functioning however the keys are all working. (fn, up, down, all work fine separately) and when I go into the control panel, I cannot find any settings for brightness, this all happened at the same I got a google redirect virus however thanks to 'gringo' an admin here, we've cured my virus. I am very thankful for that. I've searched the forums and can't find anythng on my issue.

A:Brightness function

On my Gateway NV59C, to adjust brightness: right click empty spot on desktop>> select "personalize">> lower left side select "display">> upper left side select "Adjust brightness">> under current power plan select "change plan settings">> adjust plan brightness

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I just got it today, after everything was set up, I started to use it. Soon after that a message bumped out and told me tthat there're important updates, and I chose to update them. Then the laptop shut down automatically, it made a sound after the screen became black and it can't turn on anyway. I tried press the power button, it made 5 short sounds and didn't have any other reactions. The green light and the red light on the "i" of Thinkpad keep flashing in a low frequency. The only thing I have downloaded to this new laptopThe only thing I have downloaded on this new laptop was google chrome. I have no idea what happened.... Can someone help?

A:New T450s doesn't turn on, please help

Hello and welcome,
Sorry to hear about this.  There's a post just below yours where a member reports a similar-sounding problem.
They were able to fix things by using the emergency reset hole on the bottom of the laptop.  See pages 6 and 7 of the (English) User Guide - ThinkPad T450s

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this PC comes with DOS but i have booted it with Windows 7 prof 32 bit. i installed all the drives yet brightness funtion is not working Please help me out

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Brightness Function Keys( f2 and f3) NOT Working , there is no option of adjusting the brightness in control panel,only option is calibrate the color.i am confused which driver i should install or update so that f2 and f3 start working properly.thanks!

A:Brightness Function Keys( f2 and f3) NOT Working

Hi: The only suggestion I can offer would be to make sure you have installed the graphics driver...if the graphics driver is not installed, then you can't adjust the brightness.  it is stuck on maximum. 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 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/sp72652.exe

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Model - HP Notebook 15-R203txOS - Windows 8.1 Pro 64-BitGraphics - Intel HD 5500 Integrated                     NVIDIA GeForce 820M Dedicated I have updated the drivers for both my integrated as well dedicated graphics card but still my function keys f2 and f3 for Brightness control is not working altough all other function keys are working. this PC comes with DOS but i have booted it with Windows 8.1 Pro 64 bit.


View Solution.

A:Brightness Function Keys( f2 and f3) NOT Working

Hi, Well that does explain why your f2/f3 keys aren't working as you only have the basic Microsoft driver installed - if the Intel driver was previously installed Ok, this may indicate a hardware issue. What happens if you try to install the Intel HD 5500 driver directly from Intel - it's the 2nd file in the list on the following link. https://downloadcenter.intel.com/search?keyword=Intel%C2%AE+HD+Graphics+5500+for+5th+Generation+Intel%C2%AE+Core%E2%84%A2+Processors If this does install Ok, restart the notebook and let Windows fully load for a couple of minutes before checking. Regards, DP-K

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

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

these i think the most relevant for this issue.

btw, all the other function keys work. thanks again

A:adjusting brightness (function keys)

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I have the same problem: some of my function keys are not working.
My device is a HP zbook studio g3 with model number T7V83ES.
I did a clean install of 10 education since i could get that one for free and my previous version was enterprise. The keys worked on enterprise although I had some issues with it before only I forgot how to fix it. More people at my university that have the same laptop are experiencing the same problems, unfortunately this is not the case for everyone that owns the same laptop.
Here's what I did and what it resulted in:
-Installed every driver/program that seemed appropriate and was listed on the original  HP website for software and drivers for my device.
Result: My keys were not working at all. (brightness, project switch and mic mute keys)
-I asked google and tried every single solution I could find, including the ones you suggested.
Result: Mic mute key is working, project switch key is also working, and as if it was a miracle my brightness keys are also working! But: my brightness keys are stuttering like hell. It takes windows ages to register my keystroke and even longer to register another one directly following it; it can not register 2 keystrokes in a row, it needs a sort of cooling down time for the button.
This is a list of my installed drivers:
&n... Read more

A:Brightness Function Keys( f2 and f3) NOT Working

Did you try installing the HP Hotkey Support Driver yet? If you did install and it still doesn't work, then try updating your BIOS.  Hope this helps. Cheers.

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I have an Acer Aspire 1810TZ running Windows 7 Home Premium 64 bit. There are function key combos to adjust the screen brightness (Fn-right and left arrow). This function seems to stop working after I hibernate and un-hibernate the computer. Other function key combos, such as volume adjustment, still work fine. And adjusting the screen brightness via the power control panel still works. Restarting Windows restores the brightness adjustment key function until I hibernate and un-hibernate again.

An annoying glitch in an otherwise great machine.

A:Acer screen brightness function key not working

Try toggeling auto-adjust and trying again. Might not solve the hibernate thing, but may prevent a full reboot.

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The function keys for brightness adjustment are not working.

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So I just have to deal with it always being too bright then

A:Re: Brightness function keys not working after windows 7

If you want to keep it on W7, you do. There are probably other issues with the graphics as well since there is no driver, such as hardware acceleration being disabled.

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Pasting in contextual information from another post. ~ OBconflicker.Bi!nf worm keeps reappearing, windows defender monitor stops working, slow computer, windows search protocol windows pop up, Malware, virusPop up windows keep appearing "Windows search protocol host stopped working and was closed" Itunes occassionally doesn't work, Media Sync doesn't work. Hard Drive keeps working in the background. Windows Defender no longer monitors the running programs.End of added information. ~ OBLogfile of Trend Micro HijackThis v2.0.2Scan saved at 8:46:00 AM, on 1/11/2010Platform: Windows Vista SP1 (WinNT 6.00.1905)MSIE: Internet Explorer v7.00 (7.00.6001.18349)Boot mode: NormalRunning processes:C:\Windows\system32\taskeng.exeC:\Windows\system32\Dwm.exeC:\Windows\Explorer.EXEC:\Program Files\Windows Defender\MSASCui.exeC:\Program Files\Digital Media Reader\readericon45G.exeC:\Program Files\Java\jre6\bin\jusched.exeC:\Program Files\Intel\IntelDH\CCU\CCU_TrayIcon.exeC:\Program Files\Common Files\Intel\IntelDH\NMS\Support\IntelHCTAgent.exeC:\Program Files\Intel\Intel Matrix Storage Manager\IAAnotif.exeC:\Windows\WindowsMobile\wmdc.exeC:\Windows\System32\hkcmd.exeC:\Windows\System32\igfxpers.exeC:\Windows\sttray.exeC:\Program Files\... Read more

A:microsoft windows search protocol host stopped, slow, firefox doesn't work, itunes doesn't work

Hello and welcome to Bleeping ComputerWe apologize for the delay in responding to your request for help. Here at Bleeping Computer we get overwhelmed at times, and we are trying our best to keep up. Please note that your topic was not intentionally overlooked. Our mission is to help everyone in need, but sometimes it takes just a little longer to get to every request for help. No one is ignored here.If you have since resolved the original problem you were having, we would appreciate you letting us know. If not please perform the following steps below so we can have a look at the current condition of your machine. If you have not done so, include a clear description of the problems you're having, along with any steps you may have performed so far.Upon completing the steps below another staff member will review and take the steps necessary with you to get your machine back in working order clean and free of malware.If you have already posted a DDS log, please do so again, as your situation may have changed.Use the 'Add Reply' and add the new log to this thread.Thanks and again sorry for the delay.We need to see some information about what is happening in your machine. Please perform the following scan:Download DDS by sUBs from one of the following links. Save it to your desktop.DDS.scrDDS.pifDouble click on the DDS icon, allow it to run.A small box will open, with an explaination about the tool. No input is needed, the scan is running.Notepad will open with the results.Foll... Read more

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Dear Forum,

Recently reactivated this notebook as a backup solution with an nex HD.

Which driver / programm is necessary to bring the hotkey to function?
The display itensity is very low and backwards I was able to control that with this key function.

Thanks a lot for support and hints

A:Satellite S5200-903 Hotkey Function (Fn+F7/F6) Monitor Brightness

For this old notebook models the whole thing works a little bit different as on new models. Now you have one package that contains all necessary stuff for FN functionality.
On old notebooks like your Satellite 5200 you must install several different tools to get this FN functionality, not brightness control only.

So, to make all this easier I recommend you to check Installation instructions for Satellite 5200 and install all missing stuff. Please follow the installation order.

If you still need help let us know.

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I am pretty well versed with upgrades from Windows and HP. I purchased and registered this new HP Envy Notebook HP - m7-n109dx a month ago.  After either Windows or HP updates the Function keys for Dim, Brightness and Volume had stopped working.  After this began I rolled back and resinstalled video and keyboard drivers one at a time and rebooted the system.  Nothing is working. We need somone to give us a patch to download to fix this universal problem. I scoured this forum and many others but because this computer is a 2016 computer there are not many expert suggestions from HP or power users to resolve this problem. On the other hand, I see complaints in many forums about the problem, hence the description as being a universal problems. Is it a Windows Updates for W10 that is the culprit?  Is the newest BIOS update from HP that is the problem?  I do know my machine worked great for two weeks until updates from HP and Windows began pouring in. Could we please  have an expert reslove this without speculation?  I have done all that any expert would do to resove the problem. No, I am not going to reset the system either. Thank you in advance to whomever the hero will be with the right answer.  

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