FN + brightness does not not on windows 8.1 on M6600

Hello. Thanks for any suggestion or you can provide advice.

I have been using Windows 7 on M6600 for awhile. He has mainly worked not to mention that I was becoming "Nvidia Kernel Mode Driver stopped responding and recovered the question" sometimes and I had no other choice to restart to make it work again, it's for a while...

When windows 8.1 became available through business, I put a hand on her and decided to reinstall fees.

I backed up all my data and destroyed Windows and recovery partitions, leaving the dell system partition.

8.1 Windows Installer has been surprisingly fast, 15 min. As soon as I started, I installed driver chipset Dell video drivers and other drivers. All entries in Device Manager have been without warning, some drivers have been found and some I installed on Dell site. I installed most critical programs and everything was cool and functional. NVIDIA video driver crash seems to be gone too. I have 2 other machines windows 8 so my experience windows 8 was there and I'm very happy with everything in windows 8.1

Then finally, I noticed that the brightness of the LCD screen is not working. I made sure that I had driver Dell Intell HD 3000, driver Nvidia from Dell and Dell installed feature pack. I tried with the feature pack of Dell and without it.

I have studied this topic, found another reference to Windows 8 having the same problem. I have 3 monitors and are they running Optimus. This worked great in windows 7.

Some posts suggest that it is essential to install the drivers in the order. I started to doubt my installation process, if I missed something. I created the image of the system what I did rebuild in windows 8.1 and complete clean reinstall. When windows 8.1 came, I was always checking brightness. I worked very well with the native control windows 8.1. It was light and moved up and down, brightness adjustment. I immediately installed the driver chipset, rebooted, noticed that windows installed sound driver Intel HD 3000 generic in the background (which broke the brightness) and right on the top, installed DELL Intel latest driver and restarted; brightness adjustment still divided. All this according to Dell reinstall guides. As soon as windows are HD 3000 and installed the driver, fn + brightness has stopped working. so no matter the other drivers, driver Intel he kills and driver video dell Intel does not restore the brightness setting.

I tried again. Format the partition and 15 minutes later, repeat of history. As Intel video driver is installed, the control function kills and Dell Intel driver(Win7-8_64_15.28.14_3040_Dell_setup_ZPE) does not restore it.

So I restored windows 8.1 recorded image to get my first windows 8.1 rebuild. BTW, those who install 8.1 have no need to use (DDPA_Setup_TDC1K_A06_64bits_ZPE) security software Dell, windows 8.1 supports fingerprint scanner by default. just set it up. It works very well. 8.1 is very catchy in my laptop and I like him. I boot on the desktop (do not use 8 Start, which I use on win 8 machines) and the MS splash screen is an OK compromise in my opinion.

This question has nothing to with the installation of sequence here. by me, Chipset and video drivers are installed in the correct order.

I can control the brightness going in and using the BIOS. but it's an ugly way. I can control the brightness while boots windows 8.1, which is fast enough on M6600 with disc DDD, but necessary and it is difficult to judge the brightness right here.

Some have suggested that it is thanks to Optimus. I need, I have to use 3 monitors and sometimes travel. and it worked fine in Windows 7.

Anyone of you have any idea what I can do? Thanks a lot for your suggestions!

PSI found the following reference http://adrynalyne.blogspot.ca/2012/10/fix-brightness-control-for-windows-8.html which seems to suggest that there might be question of deployment.

My install Windows with driver Dell Intel 8.1 shows "FeatureTestControl" = dword:0000f960 currently.

Could someone post what their Windows 7 for FeatureTestControl registry value uses the last Dell Windows 7 Intel driver, please?

SOLVED. By installing the driver the most recent HD3000 from Intel, then create a HD3000Fix.Reg file with these entries, open the file or apply to Windows RegEdit (be careful as usual), then restart:-Windows Registry Editor Version 5.00 [HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Class\ {4d36e968-e325-11ce-bfc1-08002be10318} \0000] "FeatureTestControl" = dword:0000ffff [HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Class\ {4d36e968-e325-11ce-bfc1-08002be10318} \0001] "FeatureTestControl" = dword:0000ffff [HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\intelkmd] "FeatureTestControl" = dword:0000ffff - I use this for two years for every time Intel updates the HD3000 drivers and it works well for Windows 8.0 and 8.1 of Windows on two different PCs, including the 6600 with video Intel HD3000 precision. Hope this helps others... 64Dude

Tags: Dell Laptop

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