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Brightness function keys are not working

I use Windows XP  and there is no way I can make the brightness keys (Fn + F7 & F8) work. I know there was a bug with an older version of QuickLauch Buttons drivers and that there's also a problem with new Intel drivers released for X3100.

The fact is that I've tried almost everything. I always do fresh installs of Windows XP from a license I own (despite HP fully supports XP and gave me a downgrade to XP from Vista for free). Installing the right (bug free) driver combination HP advices only works until I reboot, downloading the Intel driver from his own page and not installing any quicklaunch driver dones not work neither... 

I tried every combination possible, and always installing a fresh Windows wihtout any old driver or HP preloaded driver. Even without installing any driver (quicklaunuch buttons or Intel x31000), brightness keys don't work. They stop working when login screen loads in the Windows XP startup.

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Insert your xp cd and reboot it................for more info contact http://tinyurl.com/m7ghqz

Posted on Jun 19, 2009

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1 Answer

PCG 5-K8P display lost brightness


Locate the Fn (Function) key on your keyboard.

It may be on the bottom left side with dark blue letters.


Locate the two "brightness" keys near the top of the keyboard.

These will be in the "F" keys, possibly if F6 and F7.

They should have little sun pictures or something similar to indicate brightness.


Hold down the Fn key while pressing F7, or whichever "F" key your laptop uses to increase brightness.


Tap F7 repeatedly until you reach the desired brightness.

Fn must be held down as you continue to tap.

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You have to Press and Hold the FN function key at the lower left portion of your keyboard then hit the volume or brightness keys. Notice that the volume and brightness keys are the same color as the FN function key. That means you have to press and hold the FN key while you hit the volume or brightness key.

May 27, 2012 | HEWLETT-PACKARD HP ProBook 4420s Notebook...

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I got a ADVENT Modena M201 Laptop and I know how to turn the webcam on but there's no programme on the 'all programs' tab for it. When my friends are round I would like to take pictures with them but its...


Below please find key - function overview.

Fn + F7 will turn on/off the webcam

It might help you.

Function Keys Fn+F1 - Places the computer into sleep mode
Fn+F2 - Changes the (I-Powerxross) power settings
Fn+F3 - Switches display modes: LCD only, External monitor only, LCD+External Monitor
Fn+F4 - Turns Wireless LAN on/off
Fn+F5 - Switches OSD (on screen display) on/off
Fn+F6 - Turns the Touchpad on/off
Fn+F7 - Turns the Webcam on/off
Fn+F8 - Mute Sound
Fn+F9 - Reduces speaker volume
Fn+F10 - Increases speaker volume
Fn+F11 - Reduces the screen brightness
Fn+F12 - Increases the screen brightness
Fn+Esc - Toggles Bluetooth & 3G on/off (optional)

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Hello,

Each Touchbad should have basic functionality by default in every Operating system, letting it be used even when no driver is installed. However, try pressing FN and F7 together and see if the touchpad works again. Some people accidently press this FN + F7 key when they mute the sound with the FN + F8 key.

The FN + F7 is there to disable/enable the touchpad as some people use a USB mouse instead of the touchpad.

If you still need the drivers, here are the download links. Please choose desired driver by Operating system and Touchpad brand...

Acer Windows XP TP Drivers Synaptics
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You can use the "Fn" + F7 and F8 key from the key to increase the Colour and Brightness of the Screen

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You need to install the special keys manager for all of that.

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My keys (HP-540) for contrast,brightness are not


Are you holding down your function key while pressing those corresponding keys?

You should see a key labeled "Fn" "F" or similar. It may also be labeled Mode.

It is generally "Fn" and blue.

Press and hold this key, and then press the F7 or F8 key repeatedly to adjust.

Hope this helps
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Light off on screen. Someone dimmed the light.


Compaq says to DECREASE the screen brightness for your specific model, use the fn key in combination with the F7 key (basically, hold down the fn key and press and release the F7 key). That most likely means that the Function key to INCREASE the screen brightness is usually on one side or the other (F6 or F8). Also, look for what the other User suggested; the function key should have a picture of a sun or sunburst. Hope this helps.
Keith Stoffer
Comptia A+ Certified Technician (20+ years)

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Most times you have an additional key on a laptop called FN mostly it is located next to the windows button (left bottom on your keyboard). On the key the text is in the same color as the brightness logo's on your F8 and F7 keys. Just press that button, hold it and than adjust brightness with F7 or F8.

Please let me know if it solved your problem.

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