Question about Compaq Presario CQ56-115DX Laptop

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I have compaq presario cq42 laptop with window 7 professional operating system. my problem is that i can't adjust or decrease the screen brightness by using function key (f2 and f3). please suggest me

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Now New Model Laptops Come with Fn+Multimedia Keys this Model Laptop Same Tpye. If You Change Settings Goto Bios Change "Fn Keys Behaviour" menu. OR Using Without Pressing Fn Key only Press Drictly Fn keys. Again Same Problem Please Install Quick Lanuch Button Driver (this software Working Properly Please Install .Net Frame Work First) Form Compaq Site under Software - Soultion Category (Select Proper OS) http://h10025.www1.hp.com/ewfrf/wc/softwareCategory?lc=en&dlc=en&cc=us&os=4062&product=4308201&sw_lang=&#N600

Posted on May 07, 2011

  • Isaac Koech
    Isaac Koech Feb 23, 2014

    I already downloaded the quick launc software but still i can t be able to adjust the brightness..I also noticed that only the f2 and f3 keys are not working..The others are working perfectly..Kindly help me this thing is driving me nuts

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I have compaq presario CQ42. How to decrease the brightness of the screen. I have tried holding with FN key and light option but not working out.


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http://h20000.www2.hp.com/bizsupport/TechSupport/ProductList.jsp?lang=en&cc=us&taskId=135&prodTypeId=321957&prodSeriesId=4121902

Above is the link to Compaq... you have to select your specific model of CQ42 (look for the sticker under your laptop), choose your operating system and download the relevant ones.

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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

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How to adjust brightness of compaq presario CQ42 laptop


You can do this with function keys for that model. The letters may be different, if they are, refer to the pics of the keys; they are always the same.
From the Windows desktop, hold the Fn key and press the f7 key c00776226.jpg to increase or the f8 key c00776225.jpg to decrease the brightness of the display.

To help us with feedback; please rate this solution if it was helpful to you. It doesn't charge extra to leave feedback and is appreciated greatly!

KittyTech

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Screen display


It's hard to find a Compaq manual their site, but they indicate you'll find this in the help files on your computer.
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