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).
I have been having several issues with Windows 8 (more specifically Windows 8.1).
My Toshiba U845T-S4165 has been dropping WiFi access, switching to "Limited" WiFi status, or cannot connect to my network whatsoever. The most aggravating thing is that this happens at seemingly random times and frequency. I can go a week or two with no issue and then one day I have constant problems where I can't connect after repeated tries. I have trouble-shooted everything I can and have tried some workarounds I found online. I finally contacted Toshiba and all they did was delete my network driver and redownload/reinstall it. That seemed to stabilize the problem for about 8 days or so but now I am having consistent issues.
I have read that many people started experiencing this problem after upgrading to Windows 8.1. While I can't say with absolute certainly that my problems began after upgrading, but they may have. So I am trying to revert to Windows 8. Now this would be a seemingly easy process however ignorantly and stupidly I did not create recovery media after I initially bought the laptop and built-in recovery drive has been, again stupidly, deleted during my upgrade process to 8.1. So in short, I have no recovery media.
I did find a source online that sells Windows 8 downloadable software that I can download, burn to DVD, and then start from scratch. However, I must provide my own COA. I used Belarc Advisor to find my current COA. However, this COA is associated with Windows 8.1. So my ultimate question is: Will this COA work with a Windows 8 recovery media? Did the COA change when I upgraded from Windows 8 to 8.1? I don't want to start this process and then get screwed midway through because my COA isn't valid when downgrading.
I have a Sony VAIO VPCS11X9E and my screen brightness is at the lowest setting for some reason. Also, my FN keys for the brightness setting won't work. Any means of changing the brightness does not work, this does include the brightness bar when you go into settings.
I have tried so many driver installs, checked for any missing drivers or out of date drivers, but the only one that seems out of date is my Intel HD graphics which I HAVE updated, yet the Intel driver update checker says otherwise.
I have disabled AND enabled (just in case) the adaptive brightness, but it does NOT work.
I did have Windows 7 Ultimate running on before but decided to upgrade to Windows 8. Windows 7 never had any issues with brightness. Also when I load up, even thought I have replaced Windows 7 with Windows 8, it still loads up the dual boot screen asking me which OS I want to boot with. Booting with Windows 7 will blackout a few times then it will take me to the VAIO repair system. Windows 8 obviously takes me to Windows 8.
When the laptop boots up, the large letters or 'VAIO' are bright and normal and sometimes, but not always, when it gets to the dual boot screen, the brightness is normal. However, when this does happen, as soon as I move the mouse or click a button, the brightness immediately goes back down to very dim.
When it loads up into any other system or boot program the brightness is fine. For example when I go into Sony VAIO's recovery center, the brightness is ok. Also, if I boot into something like miniXP or a separate OS on a bootable disk or USB, the brightness is fine as well.
I have tried many driver fixes, but NONE of them work!! I have tried booting up into safe mode and trying to manually install certain drivers because that apparently works, but it does not make any difference at all.
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.
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 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.
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)...
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.
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?
what the registry key (or other option) was for the incremental brightness steps.
I am trying to figure out if I can lower the amount that my brightness changes in each "step" or click of the brightness function key. I know for a fact my display supports changing the brightness in smaller increments (You can do it with the slider in the battery settings) I just need to figure out how to change the amount that Windows increments/decrements per key-press.
I've installed windows 8 and I was able to change the screen brightness without any issues. After installing windows 8.1 however, I wasn't able to change the screen brightness. I was only able to change it when using the standard windows graphics driver, but when using the AMD driver it won't work.
I've had a search but am still a bit confused. Before I hose my system, can I just check a couple of things? I have legit win8 pro + MCE x64. I have the x64 WZOR ISO. I'd like to upgrade from 8 to 8.1 without losing anything (data or programs).
1. Is this possible?
2. Do I mount the ISO & run setup? Or do I have to burn & boot off the ISO?
3. if I run setup from within windows, it tells me my key isn't valid for this version of windows. Do I just need to use the 'universal' professional key (XHQ8N-C3MCJ-RQXB6-WCHYG-C9WKB) and then switch for my MCE key after upgrading?
I have old Dell Inspiron 9300 laptop. It had windows xp sp3 and I upgraded it to windows 8 Pro. After upgrading I noticed the brightness icon on the settings had unavailable written on it. I am unable to change the brightness setting. When I point the mouse on top of the brightness icon, it reads Windows cannot adjust the brightness on this display. Also the functions keys on the keyboard for brightness don't work. Is the problem with my Quickset Driver ?
Other than this issue the laptop is working fine. The audio is working.
I've recently upgraded from Windows 7 to Windows 8.1, but for some reason it installed Windows 8.1 32-bit, instead of the 64 bit version. I've left it this way for a week or so but some of the applications I use need to be 64 bit.
Basically, how do I upgrade to a 64 bit version of Windows 8.1?
I have purchased window 8.1 pro DVD from a retail store please note it is complete windows DVD not an upgrade pack i want to upgrade my window 7 ultimate to win 8.1 pro with this Complete DVD and retail key provided with it, upgrading with this DVD note i don't want to lose any of my data and installed apps which are compatible.
I wanted to upgrade it manually to windows 8.1, so i used a usb keyboard to access bios settings and I disabled uefi. After reboot, i got a bootmenu which didn't booted in my usb installation. I messed up then with the bios, and after rebooting i couldn't even use the keyboard anymore. I am stuck now at the boot menu.
I am scratching my head, my machine is HP Z600 with windows 7 professional on it and I upgraded it with Windows 8.1, after the installation was done I've got two BSOD till now. I am not a technical savy person so I looked up online and found this place.
I have a system I built with Windows 8.0 64-bit. I have a legitimate product key, 8.0 discs and an 8.1 with update disc from 53564-murphy78-s-Windows-8-1-Server-2012r2-with-Update-MSDN-iso-files
I do NOT want to update through the Windows Store.
I was under the assumption that I would run the update disc, enter my product key and it would update my 8.0 to 8.1 automatically. Pop in my legit product key and it said it was for "another edition of windows" and to "try another key."
How can I update through the 8.1 with update disc I just burned?
I have a new computer , HP recline 23 . OS is Windows 8.1 . It came out of the box with Windows 8 , so I had MS store update to 8.1. The screen is set very bright , OK for day use but too bright for night use .
My problem is that I can't adjust the screen brightness. After clicking on the charms menu and clicking on settings , the brightness icon is greyed out . It says windows cannot adjust brightness on this computer. I tried the various locations where the brightness slider may be but all the relevant screens show no brightness slider.
I don't know whether win 8 had the brightness control before upgrading to 8.1 ( I mention this because several people complain that after upgrading to 8.1 , they loss brightness control amd regained it by rolling back the driver )
I tried the update driver option but it says my driver is already updated. The roll back option is greyed out ...
BTW the display adapter shows two adapters : Intel 4600 and Gforce GT730 . How do I check which one is being used?
since I updated to Windows 8.1. My screen is stuck on dim. It's not dim enough to be unusable, but it's dim enough that I wish I could turn the brightness up. If I use the hardkeys on my keyboard to turn it up or down, the bar will go up and down, but the brightness won't change. Same goes for using the settings charm brightness bar and adjusting via control panel. I've tried updating my display and video drivers, and messing around with the battery "power plan" settings, but after all that it still won't change.