Question about Dell Latitude C640 Notebook

3 Answers

Adjusting brightness Hi, i'd be grateful if you could tell me how to adjust the brightness on my dell PP01L notebook.

Posted by on


3 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert whose answer got voted for 500 times.

  • Dell Master
  • 2,022 Answers

See in keyboard ther is button called FN which is in blue colour press this button and simltenoeusly pree the button aerro up and down

Posted on Oct 10, 2007

  • Level 1:

    An expert who has achieved level 1.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 8 Answers

Go to display properties by rt click on empty spot on desktop, left click on properties, then click on settings, then advanced
you will see all options for display
brightness, contrast, color, depth etc
do a little at a time
you can try cl open gl or color tab
these are all in 'advanced' settings in display properties

Posted on Feb 26, 2008


And if pressing the Fn and arrow keys to ajust brightness and contrast don't work why is that ?
Is it b ecause I have a 2nd mouse plugged in to my Dell, and large keyboard ?
Shouldn't think so.
Any one have any other ideas why ?



Posted on Feb 17, 2008

1 Suggested Answer

  • 2 Answers

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

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.
Good luck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


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



Related Questions:

1 Answer

How can I adjust screen brightness with out using Fn shortcuts

go to start->control panal->display->on the left hand upper corner there is an option adjust brightness.........if unable to find then click on start->search->adjust brightness(for windows 7)

Mar 29, 2014 | Dell Inspiron 1501 Notebook

2 Answers

How to adjust contrast on dell 610

You can only adjust brightness. There is no contrast control.

Jan 17, 2014 | Dell Latitude D610 Laptop Computer -...

1 Answer

There is limited option to adjust brightness

Read at

Sep 20, 2012 | Dell Inspiron 4150 Notebook

2 Answers

Screen is very dark on my dell m20 after re-installing windows xp, is there some kind of screen driver for the lcd?

it is just probably the brightness settings. to adjust brightness, simply go to control panel, if you are watching folder wiev, where you see all options you have, find the one saying power settings, now there should be, either in the tab to the left, or in the main-window, a link saying adjust brightness, follow that link, and you should be able to adjust your screens brightness. But, if your setting are divided into category wiev, i.e. hardware and sound, user accounts and family setting and so on. Enter the hardware and sound folder, find the power setting link, either in the tab to the left, or in the main-window, when you have, follow the link, called adjust brightness, again, either in the tab to the left, or in the main windows.

May 16, 2010 | Dell Precision M20 Notebook

1 Answer

Can't control brightness

  • Hi, there are two things you can do, first in the "Search Window" from the START button, Type: Power, a "Power Option window should appear, next scroll to find in the (Left Task Area); "Adjust the display brightness, the wording may differ from model computers. The second is from the "Desktop Screen" right click to open the Personalize window, select, and choose "Window Mobiltiy Center," if the application is available you be able to adjust the "brightness" aswell. "Rating the solution is appreciated, thanks"

Apr 12, 2010 | Dell Inspiron 1545 Notebook

1 Answer

Dark display to adjust?

Hi, there is a key in your laptop which is called FN key. Press FN+ UP/Down Arrow for adjusting brightness.
Thanks & waiting for your feedback.

Feb 13, 2010 | Dell Inspiron 6400 Notebook

1 Answer

Dell pp01l will not turn on. The adapter is

what you should do is to check the adapter with a meter!if there is a light on the adapter and its not on then replace it!

Oct 28, 2009 | Dell LATITUDE C640, P4...

3 Answers

Dell pp01l

Using the Fn key combinations..

Fn> + <End>
Mutes the speaker
<Fn> + <Page Up>
Raises the sound volume
<Fn> + <Page Down>
Lowers the sound volume
<Fn> + <F10>
Ejects the drive bay
<Fn> + <Esc>
Places the computer in Suspend Mode
<Fn> + <F7>
Alters the font size at boot. If the Dell splash screen or Windows splash screen is very small, then this will enlarge it.
<Fn> + <Down Arrow>
Dims the backlight on the LCD
<Fn> + <Up Arrow>
Brightens the backlight on the LCD

Jan 16, 2008 | Dell LATITUDE C640, P4...

2 Answers

Unable to adjust the brightness of display screen

bright ness buttons are indicted witha sun like mark . they r usaly used with fn keys look for that keys

Dec 22, 2007 | Dell Inspiron 9400 Notebook

3 Answers

Users manual for model PP01l dell

What is the full Name and Model? For example, Dell Latitude PP01L C610

Sep 14, 2007 | Dell Latitude C640 Notebook

Not finding what you are looking for?
Dell Latitude C640 Notebook Logo

433 people viewed this question

Ask a Question

Usually answered in minutes!

Top Dell Computers & Internet Experts

Les Dickinson
Les Dickinson

Level 3 Expert

18417 Answers

Alun Cox

Level 3 Expert

2678 Answers

Doctor PC
Doctor PC

Level 3 Expert

7733 Answers

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

Answer questions

Manuals & User Guides