Graphic Cards :: Brightness Won't Adjust In Any Way When Its On?
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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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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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 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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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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Mar 6, 2014
So, a few days ago the battery of my laptop died and when I charged it and power it up again I found that I can't change the brightness of my screen which I was able to few minutes before. I tried fixing it by going onto control panel>hardware and sound>power option, but it didn't work. It's just stuck. What can I do? Is my laptop broken?
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Jan 25, 2014
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?
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Oct 19, 2013
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.
Lenovo P400 Touch
Intel 4000 HD graphics
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Jun 7, 2014
Well I've had my laptop for almost 5 months now, however I did break it and got a screen replacement yesterday. Ever since then my screen seems dim. I've altered all the settings (as explained on other threads) but I still can't get to the centre of the problem. I had no trouble altering my brightness before my screen replacement so I do presume that the screen that the shop fitted wasn't the correct one and therefore a cheap option.
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Oct 18, 2013
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 even tried disabling the display driver and restarting it, but that didn't do anything.
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Jan 12, 2014
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 all drivers are updated : and if i want to play games i have to install the latest driver but i cant adjust brightness
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Jul 30, 2014
Working with ACER Aspire E1-510, 15.6 HD LED LCD with Windows 8.
UNABLE TO ADJUST BRIGHTNESS.
Have tried Control Panel, Fn keys.
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Aug 31, 2013
I just reset my PC. I was installing things back onto it (firefox, Spotify etc) and all of the sudden the screen went dim. I went to settings and it says "Windows can't adjust the brightness on this display" . Restarting the computer does nothing.
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Aug 24, 2014
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?
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Jan 22, 2014
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,
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Nov 3, 2012
I just installed the windows 8 pro on my dell inspiron 1564 but there are ceratin problems that im facing, like when I increase or decrease the brightness of my screen my laptop reboots and when I remove the power adapter it reboots
a message comes on the screen saying your laptop ran into some problem and needs to restart
I know that the display driver is the main culprit here but where to get a newer driver?as dell is not upgrading the drivers.
Dell ispiron 1564
i3 processor
4gb ram
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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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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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Sep 5, 2013
I've got a bit of a strange issue that I haven't had with previous OSes on this PC. I'm running a Dell OptiPlex 380 with Win 8 x64 at the office and I have to run 2 video cards for all of my screens. I have a GeForce 8400GS in the PCI-E slot and a GeForce 6200 in the PCI slot.
Previous to the Win 8 install, it worked fine. Booted exactly as I had shut it off. Now, with 8 - it's killing my PCI-E card presumably when it puts the screens to sleep when I leave for the day. So I'm coming in to all of my windows being moved to the PCI card's monitor (only one hooked to it) and I have to reboot to get PCI-E card to come back.
If I check the screen properties, I see only the screen hooked to the PCI card. I've changed the setting in the BIOS for the first video card to Auto and also tried the PCI-E selection and it's the same either way.
Why on earth would it default to the PCI card rather than the PCI-E card?
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Jul 26, 2014
i am on windows 8.i am using HP laptop.this is my ccc version.
i got 2 problems:well first one is that i can't update to windows 8.1 as the update always hang on 82% and after that my laptop
automatically shutsdown i don't know whats the reason is and that's why i am stuck at windows 8 till now although have 8.1 ISO but i don't want to install it as i have to erase my my windows 8 which came pres-installed so i will loose my genuine windows 8 .now i want to know what if i open the 8.1 installer and install it from a virtual tool like Deamon although it gives an option to keep files app setting safe but i fear that it would conflict with 8 and i would have to format my laptop then ok now to the major problem i just recently purchased Watch Dogs and installed it.I played the first mission and got busted so the mission failed and it began to reload and then a error pops up saying watch dogs have stopped working upon googling i found out that this is due to DUAl AMD Graphics so they stated that i should disable it but i cant find any option of disabling DUAL Graphics.
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Dec 20, 2013
graphic card : GT 740m
i play a browser game on chrome named begone nplay with my charger plugged in i get 100-130 fps but whenever i unplugged it it drops to like 20-40 fps . i checked power settings and its always on high performance .
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Sep 15, 2014
how can i know GPU activity ?
i like a lot process hacker , i have the last version and under Windows 8.1 pro 64bit ,system information gpu is empty (there is always 0% activity
is there a program that let me monitor?
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Jul 2, 2012
I just decided to turn loose Windows 8 RP on "bare metal" here as opposed to a VM. I didn't even bother to mess with video under a VM, but with the bare metal install, I've run into some trouble.
At first, media player didn't seem to play anything, including .wmv files. Messing around, I unchecked the "Direct X acceleration" box and that allowed it to play .wmv files. However, it still won't play .mp4 files -- no video, just sound, and Media Player will hang trying to exit.
It did this with a clean install with only the Windows supplied video driver. My video card has been obsoleted by AMD now (HD 4200 chipset) and I couldn't use the new Windows 8 preview driver package, but I did try installing the AMD 12.4 driver in Win7 compatibility mode. That worked fine it seems, but it still won't play .mp4 files. Turning the Direct X acceleration back on still kills .wmv playback as well.
Win7, both x64 and 32-bit played .mp4 files fine right out of the box on this machine.
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May 29, 2013
I've tried to set up a dual monitor for Windows 8.
This is what happens:
Note: If i set it as the tv for the main screen it works fine?
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Apr 5, 2013
I have the following graphics card Gigabyte GeForce GTX 650 Ti Windforce 2X NVIDIA Graphics Card - 2GB installed on the system in my sig, what are the correct BIOS setting for the GPU, The options are: PCI Slot, PEG, PEG1, PEG2 and PEG3
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Sep 15, 2014
I'm having issues with one of my GPU's fans (it features a dual-fan cooling) and will have to fix it soon. The problem is, it's making an annoying noise and I was thinking if I could just block it for the time being, however brutally that sounds.
So, the question is - provided the GPU doesn't reach critical temperatures (I'm going to monitor this obviously) - would this create any additional risks, like overcurrent or something? (I don't play games, but it's a HD6950, so it does emit a lot of heat).
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Apr 15, 2013
I actually think it's integrated, how do I do it? According to running a random game on systemrequirementslab.com (Dead Island), my dedicated video RAM is 32mb. It's not a custom built, I bought it from the store.
Here are specs according to dxdiag:
System Info:
Operating System: Windows 8 64-bit (6.2, Build 9200)
System Manufacturer: Dell Inc.
System Model: Inspiron 5323
BIOS: A08
Processor: Intel(R) Core(TM) i3-3217U CPU @ 1.80GHz (4 CPUs), ~1.8GHz
Memory: 6144MB RAM
Page file: 3252MB used, 5310MB available
DirectX Version: DirectX 11
[Code] .....
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Mar 24, 2014
I am on my work computer, a DELL desktop with Windows 8.1, and I've been using a dual monitor setup for months, both with Windows 8 and 8.1. One monitor is connected via the VGA input, and the other is through a VGA to HDMI adapter. Again, they've been working flawlessly for months. It was a plug 'n play setup that took a minute and never had an issue.
I came in today and the second screen was blank. In the screen setup menu it recognized it and allowed me to adjust between extending, mirroring, etc. But after I unplugged it and plugged it back in, it no longer recognizes it. It simply cannot find a second monitor plugged in. Both screens work when plugged directly into the VGA port separately but not when plugged in the way they've worked for months.
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Oct 25, 2013
How do I get "Screen Resolution" (on desktop, right click and select Screen Resolution) to show my main monitor as "1"?
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Sep 14, 2013
I just purchased a new windows 8 PC. I was attempting to hook the computer up to my tv through hdmi (the pc has no VGA input) and when I went through the normal paces to put the display on my tv (display desktop only on 2), the signal did not transfer and there is no display on either my tv or pc! how to revert the display back to my pc monitor without being able to see anything? Acer support was less than useful. It's an acer aspire z3-605 all-in-one pc.
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