Question about Computers & Internet

3 Answers

Hp 540 laptop brightness control not working

Clicking fn F7 and F8 to regulate the brightness on my hp 540 laptop does not change the brightness.

Is there any software update etc that I need to do or is my laptop possibly spoilt?

Cheers,
Ryan

Posted by on

  • 6 more comments 
  • ryanf Mar 06, 2009

    It doesnt have any brightness settings in BIOS.

    However, strangely, the F7 and F8 (with fn) keys actually modulate the brightness when I am in the bios mode, but the moment XP boots, this feature somehow seems disabled.


  • Anonymous Mar 12, 2009

    I have the same problem! am using hp 540 .I have also checked with a couple of guys who are using the same machine; they also are facing this problem! I think there should be some software or installer to fix this.Please anybody who have the solution to this,reply!

  • Anonymous Apr 01, 2009

    how can i adjust my hp 530 contrast

  • gen7th_neo May 12, 2009

    please help me............ bios latest driver for hp 540



  • suresh10verm May 23, 2009

    i have a hp 540 notebook the same problem create in my notebook.

    function key is not working (f7,f8,f11,f12) and print screen function not working and

    ctrl v and ctrl x is not working . anybody can solved this problem ?.

    Thanks
    Suresh


  • Nicholas Lussier May 11, 2010

    Have you attempted to update to the latest video drivers?

  • Nicholas Lussier May 11, 2010

    Has the laptop always done this? Have you looked for any brightness options in the Bios? Have you tested the F7 and F8 keys to see if they work?

  • brajesh Sep 03, 2013

    i am brajesh i also have same problem with my hp 540 laptop...is there any solution.

×

3 Answers

  • Level 1:

    An expert who has achieved level 1.

    Mayor:

    An expert whose answer got voted for 2 times.

  • Contributor
  • 2 Answers

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.

Posted on Aug 11, 2009

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

How to reprogram m lop top computer because there some viruz

Posted on Mar 06, 2009

  • Level 1:

    An expert who has achieved level 1.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 3 Answers

I think i know your problem

Posted on May 12, 2009

  • gen7th_neo May 12, 2009

    where can i download the latest bios for my computer?????

  • gen7th_neo May 12, 2009

    is there anybody who can help me.. because i badly needed to reprogram my computer right now



×

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

How do I adjust the screen brightness?


Hi,

Press and hold fn button on your keyboard, then press F7 to decrease brightness and F8 to increase brightness. That is Fn + F7 or F8.

If F7 or F8 doesn't work try F6 or F9.

Or you can just start from F1 to F9. One of these buttons certainly would work.

Regards.

Apr 19, 2011 | Compaq Presario Notebook

Tip

How to use F1, F2 ?..Function buttons on Hp laptop.


For those who do not know how to use the F1, F2, F3..... buttons on HP laptops, here is an opportunity for you to know.

We see these buttons on most laptops but don't know what they are used for. F1, F2....... buttons are the first set of buttons on the keyboard. These buttons makes it easy for anyone to access some programs on the computer without using mouse.

Follow the below procedures on how to use some of these functions:

To put your HP laptop on sleep mode, Press and hold Fn button on your keyboard, (without leaving it) then press F5 (Fn + F4).

To lock your HP laptop, Press and hold, Fn button, then press F6 (Fn + F6).

To reduce the brightness of your HP laptop, press and hold Fn button, then press F7 (Fn + F7).

To increase the brightness of your HP laptop, Press and hold Fn button, then press F8 (Fn + F8).

To put your laptop on mute, Press and hold Fn button, then press F9 (Fn + F8).

To reduce the volume of your HP laptop, Press and hold Fn button, then press F11 (Fn + F11).

To increase the volume of your HP laptop, Press and hold Fn button, then press F12 (Fn + F12).

To shut down your laptop or to view other shut down options, Press and hold Alt button, then press F4 (Alt + F4). Note that this particular function can be used on all computers and laptops.

To close any page on your HP laptop, Press and hold Alt button, then press F4 (Alt + F4). Note that this particular function can be used on all computers and laptops.

Good luck.

on Nov 06, 2010 | 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

1 Answer

How do i dim the screen on my hp laptop the fn key does nothing with f7 or f8


well if u press fn key + (f7 or f8). it is suppose to reduce brightness or increase.
But if its not working then check it with service centre.
In between you can try an alternate option, if u r using win7 or vista then, look for battery sign near timer. click for more power options. in there u will see adjust brightness!

Dec 12, 2010 | Computers & Internet

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

Fn and f7/f8 not working


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

Apr 02, 2010 | HP Pavilion dv6000z Notebook

1 Answer

How do i make my screen brighter on presario v2000


Decrease Brightness (fn+f7) The fn+f7 hotkey decreases the brightness of the notebook screen. The longer you hold down the fn+f7 hotkey, the more the screen dims. Decreasing screen brightness conserves power. » To increase screen brightness, press the fn+f8 hotkey.

Increase Brightness (fn+f8) The fn+f8 hotkey increases the brightness of the notebook screen. The longer you hold down the fn+f8 hotkey, the more the screen brightens. » To decrease screen brightness, press the fn+f7 hotkey.

Nov 03, 2009 | HP Compaq Presario V2000 Notebook

1 Answer

Unable to change the Display Brightness


Click Start //Click Control Panel// Performance // screen brightness

Jun 20, 2009 | HP Compaq 6720s PC Notebook

1 Answer

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
Let us know

Apr 16, 2009 | HP Compaq Presario F750US

1 Answer

HP Laptop Screen Brightness Cannot Be Changed


You probably just need to download the hotkey software.

Your is HERE.

Download, install, and let us know what happens.

If that doesn't work we'll try something else.


Mar 01, 2009 | HP Compaq Business Notebook nc4000

Not finding what you are looking for?
Computers & Internet Logo

Related Topics:

4,190 people viewed this question

Ask a Question

Usually answered in minutes!

Top Computers & Internet Experts

Brian Sullivan
Brian Sullivan

Level 3 Expert

27725 Answers

kakima

Level 3 Expert

102366 Answers

David Payne
David Payne

Level 3 Expert

14161 Answers

Are you a Computer and Internet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...