![brightness control not working dell windows 7 brightness control not working dell windows 7](https://i.imgur.com/504N8Uu.png)
My Windows 8.1 install with Dell Intel driver shows "FeatureTestControl"=dword:0000f960 currently. Using the drop-down menu to the right of Change brightness based on content, select Off. Touch or click the down arrow to the right of Brightness. In the search results listed, touch, or click Settings (App). P.S.I found the following reference which seems to suggest that it might be deployment issue. In the search box at the bottom of the window, type, settings. and it worked fine in Win 7.Īny of you have any idea what else I can do? Thanks a lot for any suggestions! I need it, as I use 3 monitors and travel at times. I can control brightness while windows 8.1 boots, which is quite fast on M6600 with SDD drive, but it requires reboot and hard to judge brightness at that point. I can control brightness going in and using BIOS. chipset and video drivers are installed in correct order by me. This issue has nothing to do with install sequence here. I boot to desktop(not using Start 8, which I use on win 8 machines) and MS start screen is an OK compromise in my opinion. 8.1 is vey snappy in my laptop and I like it. BTW, those that install 8.1 don't need to use Dell security software(DDPA_Setup_TDC1K_A06_64bits_ZPE), windows 8.1 supports fingerprint scanner by default. So I restored windows 8.1 saved image to get my first windows 8.1 rebuild. As Intel video driver gets installed, kills control function and Dell Intel driver(Win7-8_64_15.28.14_3040_Dell_setup_ZPE) does not restore it. Format partition and 15 mins later, repeat of story. so regardless of any other drivers, Intel driver kills it and dell Intel video driver does not restore brightness control. As soon as windows found HD 3000 and installed driver, fn+brightness stopped working. This all according to Dell reinstall guides. I immediately installed chipset driver, rebooted, noticed that windows installed its generic Intel HD 3000 driver in the background(which broke brightness), and right away on the top, installed latest DELL Intel video driver and rebooted brightness control still broken. It popped brightness window and moved up and down, adjusting brightness. I was working fine using windows 8.1 native control. when windows 8.1 came up, I was always checking brightness. I created system image of what I already had rebuilt in windows 8.1, and did full clean re-install. I started doubting my install process, if I missed anything. Some posts suggested that it is critical to install drivers in order. I researched this topic, found some other reference to Windows 8 having the same issue.
![brightness control not working dell windows 7 brightness control not working dell windows 7](https://i.ytimg.com/vi/QcdGdUSKSSA/maxresdefault.jpg)
I made sure I had Dell Intell HD 3000 driver, Dell Nvidia driver and Dell feature pack installed. I tried with Dell feature pack and without it. Then eventually I noticed that LCD brightness does not work.
![brightness control not working dell windows 7 brightness control not working dell windows 7](https://nimbletech.org/wp-content/uploads/2022/12/1-1.jpg)
Nvidia video driver crash seems to be gone too. I have 2 other windows 8 machines so my windows 8 experience was there and I am quite happy with everything in windows 8.1 I installed most critical programs and all was cool and working. All device manager entries were with no warnings, some drivers were found and some I installed from Dell site. As soon as I booted I installed Dell chipset driver, video drivers and other drivers. Windows 8.1 install was amazingly fast, 15 mins. I saved all my data and wiped out windows and recovery partitions, leaving dell system partition. When windows 8.1 became available via corporate, I got hold of it and decided to reinstall fresh. it mostly worked besides I was getting "Nvidia Kernel Mode Driver has stopped responding and has recovered issue" at times and I had no choice but to reboot to make it work again, that is for a while. I have been using Windows 7 on M6600 for a while. Thanks for any suggestion or advice you can provide. We have guides for repairing the Windows brightness fn key and restoring the brightness slider in Windows 11 to help you.Hi. If so, you should check out how to fix them. If these other methods work, your usual method for changing the brightness might be an issue. If you're unfamiliar, you can check out the other ways to adjust your Windows PC's screen brightness. For instance, if you can't change the brightness using your keyboard fn key but can change it with Windows settings, the key could just be disabled or broken. That way, you can check if the issue is specific to that adjustment setting or if it affects your entire system. Use a Different Method to Adjust the Brightness Levelįirst, you should use a different method to adjust your display's brightness from what you usually use. So, if you want relief for your strained eyes, here are a few fixes you can apply to resolve the issue and adjust your display's brightness again. There are several reasons for this: corrupt system files, outdated display drivers, insufficient battery level, misconfigured power settings, and more.