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My laptop is hp540 don't work brightness key F7and F8

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Try holding down the Function key that is marked in blue letters -> "fn" while pressing F7 or F8

Posted on Aug 27, 2010

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3 Answers

How do I turn up the brightness on a HP Probook 6550b?


PLEASE RATE ME!
go to the search icon under start. search brightness. it will tell you step by step what to do.
Every laptop is different, so adjusting the brightness or contrast on your laptop may vary from the steps provided on this page. However, understanding the process of how to adjust the brightness or contrast will help you change your settings.
Most laptops adjust their brightness and other settings using the function key in conjunction with another key. For example, pressing and holding the function key (abbreviated as "Fn") and pressing the up or down arrow keys as shown in the picture below, increases and decreases the brightness.

laptopb.jpg

May 09, 2011 | HEWLETT-PACKARD HP ProBook 6550b Notebook

2 Answers

Hello, how can I adjust my screen brightness????


Most laptops have several buttons on the keyboard that can adjust the screen brightness.
1. Find the "Function" key on your keyboard and hold it down. 2. Find the brightness up and down buttons on your keyboard. In this picture, they are on the F7 and F8 key. 3. While holding down the function button, press the key that has the "brightness up" picture on it, similar to the icon on the F8 key in the picture. . bradisright.jpg

Mar 08, 2011 | Computers & Internet

2 Answers

How do I adjust the brightness on my laptop? Its a Compaq Presario V2140US


1. Press down the Fn key at the lower left end of your Compaq Presario keyboard. Keep the button held down and tap the F7 key to decrease the screen brightness by one step.

2. Tap the F7 key again with the Fn key still depressed to further decrease the brightness by one step. Continue hitting the F7 key until you reach the minimum LCD screen brightness.

3. Hold down the Fn key and tap the F8 key to increase the Presario's LCD screen brightness by one step. Keep pressing the F8 key until you reach the maximum brightness for your screen

Mar 01, 2011 | Microsoft Compaq Presario C501nr Notebook

2 Answers

How do I adjust the color, contrast and sharpness of my Dv2000 HP Pavilion?


You can use the "Fn" + F7 and F8 key from the key to increase the Colour and Brightness of the Screen

May 02, 2010 | HP Pavilion dv2715nr Notebook

1 Answer

Compaq Presario CQ50 Comes on but the screen is very dark!


The Presario's have an intensity control for the screen.

Mine is holding the function button (Fn) down an pressing F8 for brighter, F7 for dimmer.

The marking on my F7and F8 show an asterisk indicating "sun" for intensity.

Jan 11, 2010 | HP Compaq Presario CQ50-140US NoteBook

1 Answer

Hp540 desktop (f7,f8,f9,f10,f11,f12)&printscr keys are not working at all.pl tel me how to solvethis


u have to replace all the key same model of the keyboard or if u don't have same model of the keyboard then u have to change the keyboard

Nov 14, 2009 | HP Computers & Internet

3 Answers

Hp 540 laptop brightness control not working


go to hp website to download the sp38171 which is the HP Quick Launch Button driver.

recently i purchased a HP540 laptop, was having the same issue like u all, so please install taht sp38171 to fix the function keys issue.

Mar 06, 2009 | Computers & Internet

2 Answers

Changing the brightness on the keyboard


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.

Aug 18, 2008 | Intel Computers & Internet

9 Answers

Screen not bright enough


hit and hold the fn button and adjust the brightness with the right arrow. krakkerjack

Mar 16, 2008 | Acer Aspire 5315 Notebook

2 Answers

Laptop monitor


You probably need to increase the brightness on the laptop monitor. Your question is listed in a generic fashion so I give you the specific key combination, however, you typically hold down the Fn key that use hit the F7 (brightness up) or F8 key (brightness down). Let us know if you have any other questions and please don?t forget to rate this posting.

Mar 01, 2007 | HP Pavilion zd7000 zx5000 zv5000 presario...

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