Graphic Cards :: FN Keys On Laptop Respond But Don't Change Brightness
Sep 15, 2014
Recently I turned on my computer (Acer Aspire V5 122-P) and went to change the brightness. And using the FN keys and changing the brightness returns the same value rather than changing it. The other FN keys such as Volume +/- and turning adapters on and off still work. It is just the brightness keys. I would like a fix as I need long battery life and this is causing excessive battery drain. (I have tried turning it off and on again to no avail)...
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Feb 9, 2014
I have an Acer Aspire 8930G with Windows 8.1 x64 and Windows 7 x86 as a dual-boot. I use 8.1 as my everyday OS and only boot into 7 to play older games that only work with a 32-bit OS.
Ever since I installed Windows 8, I have not been able to adjust the brightness of my screen. Note that this problem started since I installed 8, not 8.1, and before I put on the copy of 7 as a dual-boot. When I use Fn+left/right (the brightness keys on my PC), the brightness slider appears on-screen and goes up and down, but the brightness of the panel doesn't actually change. Using the Charm doesn't work either, nor does adjusting it through the Control Panel.
I have tried fiddling with my Power Options in the Control Panel and disabling adaptive brightness. I have tried several different driver versions for my GPU, a GeForce 9600M GT. None of this has worked.
In Windows 7, however, the brightness controls work fine. If I want to adjust my brightness for 8.1, I have to boot into 7, change the brightness there, and then boot back into 8.1, where it will keep whatever brightness setting I was using in 7.
Is there some messed-up thing in the Registry? Is my GPU's firmware maybe just not compatible with Windows 8? I took a look at TechPowerUp's repository of GPU BIOSes, but it appears I already have the most recent one.
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Dec 30, 2013
I have Lenovo G580 running 8.1 with intel HD4000 and Nvidia Geforce 610 & Intel CoreI5 3210 2.5GHZ 3rd generation
the problem occurs after few days from updating the Intel video card which is simply i can't change the screen brightness whether using the [function+uparrow ] or control panel, it works well when i roll back the driver so am I stuck with the old driver which i can't update or what?
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Jan 14, 2013
I bought Dell 5521 2weeks ago (8gb ram 1tb hdd i5 1.70ghz). Whatever, now, i can't use my FN+F4/F5 keys. I can't control/change my screen brightness. Other Fn keys are normal. I can use them but just i can't use my brightness. What should i do? A person said me that "download the Fn key's driver" but i don't know which driver is.
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Dec 21, 2012
Recently did a clean install of windows 8 on my Asus K53SV and the function keys work fine except for the brightness keys.Actually, at first i loaded the windows 7 atk package and the brightness keys worked but the volume ones didn't then i got the latest atk package and now the brightness ones don't work (the lower brightness one just dims my monitor a bit and the increase brightness just makes it brighter a bit but doesn't change the brightness value) and the volume ones do.
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Nov 11, 2013
I've noticed that whenever I unplug my charger my brightness dims down to a point where I know its on, but I can't use it. Usually I have to put my computer to sleep and turn it back on to get it to fix. Also, the brightness wont adjust in anyway when its on. I've tried the function keys and the setting in the side bar. I have a toshiba laptop running windows 8.1 . I also have recently completely wiped it thinking it was a virus of some sorta with no change.
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Aug 25, 2014
I have a Lenovo Flex 14 - win 8.1 (64 bit).I have restored my pc and after the recovery the option to adjust the display brightness has "disappeared". The option is no longer in place in the charms bar or in Power Option and the adjustment keys (F11 and F12) are not working either.
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Jan 6, 2014
I'm sure I'm not the only one with this issue - Using 8.1 on a notebook with amd Trinity APU [A6-4400m] - all the display related Fn Keys are defeated. The non-display-related Fn + keys work. I can use CCC to manipulate external monitors, brightness, etc ok but it is not a good solution.
Plug in HDMI to external monitor and I get, by default, both.. both set non-optimally. must manually defeat the onboard display, change settings on external, reset overscan, etc etc etc
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Feb 22, 2014
The screen brightness is stuck at a low level and I can't change it. Every time I have to uninstall the driver and install an older version.
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Sep 15, 2014
I have a gateway NE56R41u. With that aside, today i played the sims 3 when it has a warning about my graphics card or whatever, so i went to my screen resolution to see if i can fix the problem. Unfortunately, the place where i can choose what my resolution is greyed out, so i cannot change a thing. Heres a picture .....
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Jul 31, 2014
OK, what I want to do is the same that a lot of users that have their smartphones (Android OS), is change the original DPI o screen resolution (force a different scale/resolution) For example: what I'm trying to say of Android OS is when you want more space avaible on your desktop or the objects/texts/sidebar/icons/etc... looks like smaller than before, you just need to go to this directory (/system) and edit the file (build.prop) and finally locate the line called (ro.sf.lcd_density=xxx) and change the original density number of your screen's device by other smaller; and when you'll restart the device you'll have the same os similar size's desktop of one Note 3 in your SGS3 mini.
So, in resume. I would like to have a 1920x1080 (for example, or smaller I don't know what resolution is correct for my case), from my actual resolution of my laptop that it's 1280x800 pixels.
And for more details:
- Windows 8.1 Pro (x86)
- Resolution 1280x800 (15,4") and 16:10
- Graphic Adapter Intel Graphics Media Accelerator (GMA) 950 (Intel GMA 945 GM)
- Only the original monitor (laptop), not an external monitor
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May 8, 2013
I just changed my laptop's OS to Windows 8 but somehow, I can't change my screen resolution the way it was before.
Here's a screenshot: [URL] .....
And when i go to desktop, right-click then screen resolution, there's only 1 option available.
Here's how it looks like: [URL] .....
And as you can see, the "Resolution" option won't show any other options aside from 1024x768.
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Dec 23, 2013
I currently have a 15" PC with a 3200x1800 resolution. Using Windows 8.1. I have the scaling to highest.
My 2nd external monitor is 1920 x 1200.
I am trying to extend my desktop to the 2nd monitor but is there a way to use different scaling for both the PC and monitor?
I have unchecked "use scaling for all my displays" but no matter what, I still can't change the scaling on the external display. It uses the scaling settings of my PC (scaling set to highest because of 3200x1800 resolution) and because of that, the monitor scaling shows everything large.
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Aug 23, 2013
IS there any tool, which will enable me to controll the brightness with some re-assigned short keys ?? I have a Sony Vaio Laptop but the thing is that the utility for my laptop which is responsible for Brightness control is not comparable with Windows 8, so I am searching for some tool/software which will control my screen brightness.
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May 12, 2013
I have seen some posts on internet, concerning connecting an external CRT Monitor with a Laptop computer. They pretty much said that there might be a blue cable with, and one can use it to connect that monitor with laptop. Now I am confused that mine monitor has two cables; one of which is blue and the other one is white, having three larger pins inside. Both these wires are connected to my desktop CPU. Now my question is that, it is obvious that the blue wire can be connected to my laptop but what about the other one, this wire is connected to the power supply of my desktop pc, and when it comes to laptop, would mere one wire (blue) suffice for the electricity or other things?
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Jan 26, 2014
I bought a new laptop without OS, it's a XMG advanced with i7 4700MQ CPU, an Intel HD grafics 4600 chip and an NVIDIA geforce 765M GTX.
I installed win 8.1 and updated all drivers. The laptop itself works fine. Now I wanted to connect an external Monitor ( HP w2207h) The laptop recognizes that there is an external Monitor and that it is an HP w2207h and tries to extend the desktop to it, but the monitor itself says that there is no input signal via the HDMI input and it goes to sleepmode.
When I connect my old Laptop to it, it is no Problem, the monitor shows the extendes Desktop, so the monitor an all cables are OK. (old Laptop : Win7 core 2 duo CPU geforce 9600M GT )
With the new Laptop I have the same problem, when I try to connect it to my LG TV set via HDMI, the Laptop recognizes the TV and tries to extend the desktop ( I can move the mouse out of the internal display to the TV ) but the TV says there is no input signal.
I have set the Output to 60 Hz and different resolutions and tried to duplicate the display or only use the external one. Nothing worked.
I can't force the Laptop to use the Gforce, he decides which one he wants to use.
A friend bought the same laptop and made the same installation, but when he connects to his external moniotr everything is fine, but I don't know what kind of monitor he has and I have not connected my laptop to his monitor.
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Aug 30, 2013
I just purchased a acer V7-482PG-6662 ( Acer | Aspire V7 | V7-482PG-6662 | Overview ) and it comes with a 1080p display but the issue is that it wont go above 1366 x 768. This is right out of the box, i cant change to a higher resolution and all the drivers have been updated.
The Nvidia card works fine as it kicks in during gaming but even in games I cannot select a higher resoloution than 1366 x 768.
I even did a fresh install of windows 8 and windows 7 same issue. Device manager indicates "generic pnp display" under the monitor heading.
Others who have bought the laptop have not experienced this issue and their display is at 1080p.
EDIT: Tried a linux live usb and same issue, the resolution is only 1366 x 768, is this a hardware defect?
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Jul 28, 2013
Today I instal win 8 pro on my alienware M17 R3, not clean instal just update since i buy the serial online from Microsoft store when installing win i keep all my setting and file and its look everything running great. after a few hours my laptop start to freeze especially after booting ( going to win 8 login ) and sometime freeze to when i play some game or doing my work ( adobe work ) when i check my system on device manager its show my graphic card ( amd radeon hd 6900M Series ) need to update driver or reinstall again, yes i do the work i download and reinstall the driver from much source and some from the AMD site too,, but the freeze and error still happens even the drivers already update on device manager
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Aug 26, 2013
My laptop (Acer Aspire E1-571) refuses to install the Intel VGA driver. I've tried via the Acer Live Updater and manually through the Acer and Intel website. I am assuming this is the cause of the fake dead pixels on my screen, the terrible quality of videos and the reason the screen freezes when playing any video game.
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Mar 30, 2013
My new Acer laptop has very disappointing screen and video quality. The screen resolution is maxed-out at 1366 x 768 with Intel HD Graphics 4000. Those specs should be just fine for great visuals. My old desktop didn't come close to that but I could watch Youtube videos very well with no pixeling of image. Acer tech support said "new graphics driver download" and I did that , to no avail. Setting adjustments etc.? My wife's 3 year old Acer has better screen quality than my new one.
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Aug 9, 2014
I have a Samsung NP300E5E laptop and would like to connect it an avast satellite box, can I do this. I have windows 8.1.
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Dec 5, 2013
My laptop is a Samsung, about 9 months old and has a pretty good spec. Suddenly, over the past few days, I've noticed that the keyboard in lagging whenever I'm logged on. It's fine at the login screen but, once I've logged on the problem occurs - and it happens on all programs. I know that this is specifically an issue with Windows 8, as I have a virtual Ubuntu machine on here that is working fine.
None of the keyboard settings have been altered and no new applications have been installed or upgraded recently.
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Oct 28, 2012
SONY is not providing windows 8 support for model VPCEB14EN.
where will get windows 8 drivers for graphics card ATI Mobility Radeon HD 5470. I checked AMD website but not found and also Bluetooth BROADCAM drivers are also missing.
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Nov 26, 2012
I have gone into the control panel and tried changing the screen brightness but nothing seems to work. I am the system administer so I should be able to set all changes.
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Dec 16, 2013
I have tried to change my screen brightness for the first time since downloading windows 8.1(about a month ago) and it is stuck a the lowest level. I have used the keys, the settings, and even the "Adjust screen brightness" button after clicking on the battery in bottom right of screen. I looked at my drivers and checked if my "Display adapters" needed to be updated, it didn't.
Lenovo Laptop: 6 GB RAM, 64-bit OS, i5-3210M Intel Core, Windows 8.1
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Mar 1, 2014
My computer is hp envy dv6 7280sf notebook with 2 GPUs intel graphics HD 4000 and Nvidia Gefoce 630 M running windows 8 64x.
After making an free upgrade online for windows 8.1 which run successfully, both gpus were ok...
But after receiving a windows update with new drivers for intel graphics 4000 gpu , after install and restart , the computer freezes on blank black screen at windows startup with no mouse or anything only backlight.
So safemode was succeful but i figured that the update for windos update was the cause and graphics drivers were installed so i removed the drivers for intel graphics and itried to reboot the computer so the restart was succeful but the intel graphics card was unistalled and no drivers were automatically installed so i tried to download and install the drivers from hp and intel website for windows 8.1 however the install fails.
Automatic install from device manager failed both online and from computer and even from manual driver selection.
So therefore the install failed in safe mode , and the high def audio device ( on screen audio possibly) failed and the device was not recongnized (no drivers installed) so i'm stuck without anydrivers for the integrated gpu and the games are no longer able to run normally even if the nvidia card is on.
I tried downloading an installing Windows 8 drives but it failed to install also , for instance any new install of drovers seems to fail for me even for external usb hard drive.
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Jul 4, 2014
I just yesterday finished my new computer (16Gb RAM, i5-4470k, GTX 770, Win 8.1, etc.) and I just today realized that I cannot change the screen brightness. The button is grayed out and says "Unavailable" which I know cannot be possible.
Now, i have done my research and people say that the fix is to update your drivers through the Device Manager, and I have tried that to no avail. I have tried all possible combinations of "Display Adapters" and "Monitors" drivers. None work. I have been restarting my computer after every change .
One thing that I might add is that a lot of people remedy this problem by reverting their Intel Integrated drives back to an older version, but I do not have an option to change it's drivers. It shows up nowhere in the Device manager.
My eyes are burning as I am typing this and I would even go for a third-party brightness program (if that even exists).
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Nov 10, 2011
Obviously there is no doubt that the n150+ or any Samsung note/netbook have had problems with not being able to control their devices brightness on Windows 7. This is because any driver after the OEM driver would change a particular number in the registry(regedit)
There were two fixes to this problem in WIndows 7. The simple way was to install the original VGA driver. The other was to change a specific number to 84 in the registries.
I have tried both and still can't adjust brightness with the fn keys. I've installed Easy Display Manager which is the software required to use fn key functions. Sound works automatically with or without the software.
I'm wondering why I can't get this to work.
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Nov 30, 2013
I recently updated to 8.1 and I can't change the brightness, I have tried a lot of things. All my drivers are working fine. Playing games with this brightness setting is pretty hard.
Lenovo IdeaPad N585
Display Adapter is AMD Radeon HD 7310
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Oct 26, 2013
I just upgraded to Windows 8.1 and I have installed all the updates provided by Microsoft but it seems like I cannot change my brightness in my laptop although it was working fine in Windows 8..
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Feb 21, 2014
I'm building a system for cryptocoin mining, and am having a little problem with getting Windows 8.1 (home, not pro) to run the 3rd card (GPU) My equipment is:
Gigabyte 990 FXA UD3 MOBO
AMD Vishera CPU
2x4 gig Corsair Ram
3x Sapphire r9 280x Video cards
1000w Corsair PSU
Scandisk SSD
All parts are brand new.
Here is the problem... everything boots just fine and runs with 2 of the GPU's installed. I have the latest AMD 13.12 drivers, and the AMD APP SKD installed. When I add the 3rd GPU though, windows will auto detect it as a Radeon 7900 with the caution sign, AND/OR a r9 200 series card, also with the caution sign, most times BOTH. Then it randomly freezes the system. A couple of times I got it to run long enough just by luck I guess, to install the 13.12 drivers on the 3rd GPU, but then in a few minuites the system would freeze again.
2 GPU's run just fine, the problem only shows up when the 3rd card is installed, and it happens on any of the 4 16x slots, or both 1x slots on the MOBO. It doesn't matter if the GPU's are directly on the MOBO, or on 1x16 risers. There are plenty of folks running this set up with up to 6 GPU's, so I know it can be done, but I must be missing something somewhere in the windows set up.
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