Question about Dell Latitude D800 Notebook

3 Answers

Laptop won't boot (display problems)

Just recently (starting today) my computer is not displaying anything on the monitor when I turn it on. I press the power button, it makes a few knocking sounds (this has always happened when I turn on the computer), the lights turn on, but nothing is displayed on the screen. I tried pressing the Fn button while I turned it on, and it worked for the Dell start-up page, but come the Windows start-up, it went black again. The Fn button did not work after the first time. Is there anything else I can try to get the display working?

Posted by on

  • 1 more comment 
  • Skhali Nov 08, 2008

    Other notes I forgot to add:
    1. This is a Dell Latitude D800 Notebook
    2. When using the Fn the first time the display was not perfect and there were three pixelated lines running down the screen. Also the resolution was changed.

  • lojosmojo Feb 05, 2009

    i dont get anything on startup besides a black screen that fades to white and then to black and keeps repeating

  • Anonymous Mar 23, 2014

    the display is blank and the computer is booted up. when I press control the display comes until I release control. If I twist the computer I can get the display to stay 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.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Dell Master
  • 998 Answers

If the diagnostics displays on the LCD screen but you get no display when Windows starts to load, it sounds like you have a video software driver problem. Try tapping the F8 key when you power on your laptop and boot in Safe mode. If it works in safe mode then you need to check you driver. You can also try connecting the laptop to an eternal monitor and see what happens.

Your responses are intended to improve the level of service provided. Please show your appreciation by rating your experience.
Thank You.

Posted on Nov 09, 2008

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

My dell Latitude D520 will not start up in safe mode or normal.

Posted on May 08, 2009

  • Level 1:

    An expert who has achieved level 1.


    An expert who has answered 20 questions.


    An expert that has over 10 points.


    An expert whose answer got voted for 2 times.

  • Contributor
  • 35 Answers

I would try booting the computer up and press F8 and select VGA mode. From here, you can check your video settings and make sure the screen refresh rate isn't set incorrectly and make sure the resolution is correct. After that, reboot your computer and see if video will display in regular windows mode now.

Posted on Feb 20, 2009

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 Technician 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 repair professionals here in the US.
click here to Talk to a Technician (only for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


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



Related Questions:

1 Answer

When I turn on monitor it instantly goes into sleep mode after a few seconds. How can I go into anything to fix it when my screen won't stay on long enough to go into anything?

Make sure that you have the video cable connected properly and tightly to the computer. You might also want to try pressing the auto adjust button on your monitor. It may have been manually set to another display mode by accident.

Jul 12, 2014 | Computers & Internet

1 Answer

My HP L2335 Monitor wont display anything. I can literally turn it on (the led power light comes on and it turns green if plugged in and I can tell the backlight is on), but nothing will display no...

why not try a dead display on 2 machines 2 PCs
using only 1 data cable at a time why try to confuse it????????

the OSD must work, or the display is bad or the power supply to it is dead.
easy as apple pie.

the monitor has a tiny computer inside it (micro)
on mine, the data lines dead shows NO SIGNAL in the screen
every time you I power up my monitor with data cables pulled off.

best is to read the book for your monitor, and run all the tests it
tells you there,

Mar 13, 2017 | HP L2335 23 inch Monitor

1 Answer

My labtop when i switch the power button on it comes on but the screen is completley black, cant see anything?

If the computer starting up and Windows is running properly but the screen is black (or the desktop is barely visible if you look at the screen closely), the backlight inverter circuit is probably to blame. This provides power for the display's backlight, and without the light you can't see the display even though it is working properly.

Fortunately, replacing the inverter in most laptops is pretty easy. Replacement parts and how-to information for many brands and models can be found online. Just search for "replacement inverter" for your brand and model and you should find several sources. A good place to find vendors today is eBay.

Replacing the inverter typically involves only a few steps. You remove a few screws to open the display. The inverter is usually a small board at the bottom of the display, held in by a couple of screws. Unplug a couple of cables, take out the old board. Then put the new one, reassemble the display and you should be back in business.

On the other hand, if the power light comes on when you press the button but the computer isn't starting up to Windows, there's some other issue that needs to be fixed. Connect an external monitor to your computer to verify it's really starting up (unless you are hearing the normal startup sound through the speakers). If an external monitor shows everything else is good, replace the inverter. Otherwise you'll need to see why your computer isn't starting.

Good luck on a speedy repair. Thanks for using Fixya!

Oct 18, 2010 | Computers & Internet

1 Answer

I am unable to turn on/off my dell 20" monitor. On/off button doesnt work.

Hi! Most modern monitors have on/off switches that are NOT actual power controlling devices. (i.e. they simply tell an IC chip to cut power to the display section while leaving the rest of the power supply energized.) In the earlier monitors, when you flipped that power switch, you actually cut AC power to the whole unit. Now, with today's faster computers, LCD and plasma displays, instant-on is the norm. Regardless if the button is physically damaged(usually pressed too hard) or the circuit is defective, unless you are a tech you'll have to take the unit in for repair. Is the monitor under any type of warranty? Was there a storm recently? Do you use a surge protector? If the display was damaged at all by the storm, there is a very good chance you'll be covered by the surge protector warranty.(that's what you paid for)---hope I was of assistance---Rick

Oct 02, 2009 | Dell Computers & Internet

2 Answers

I have a Sceptre x22 gamer that has been serving me well for about two years. A week ago I started having trouble getting the monitor to ''Wake Up'' after the computer goes to sleep or when rebooting. It...

warcryofjuda, One of the guys that I work with brought in a small screen Sceptre DTV/DVI/VGA +audio unit. and it also has a optional TV/tuner module. mod S1701DTV with side mounted speakers. The viewable screen size is 14"w x 8.75"h . Oh! First things first! Turn it OFF and leave it off. Disconnect it and put it in a safe place for now. IT'S BROKE!! It will not work today, and it will not work tomorrow or the next day. Got that? Ok! Now I want to know if you would like to work together with me and explore both of these monitors and possibly come up with a fix for them? Please get back to me via my email with what ever approach you feel is best for you. We have already opened up our unit and I will try to attach some pic's for you to compare your unit with. I'm louie12fix on fixya or
Bye for now.

Apr 15, 2009 | Sceptre x22wg Gamer Monitor

2 Answers

It turns off, or goes to sleep. Won't wake up.

Hello there topothemorni,

Are you familiar with Windows' "Power Options" module, and that within it you can tweak all things related to power saving (e.g., system sleep, hibernate, and automatic MONITOR shut off)? More than likely you just need to make a visit there and make some desired adjustments.

[Control Panel > Power Options]
... OR ...
Start > Run > type "powercfg.cpl" (without quotes), then hit Enter.

Once there, you'll probably find most everything self-explanatory.

Also, it may be responding to configurations adjustable from within the monitor itself. Somewhere on the monitor there will be a OSD (On Screen Display / Setup) button of some type, where from there you'll be able to make whatever necessary tweaks. Refer to its documentation if you don't find it self-explanatory.

Good luck and please let me know if you have any further questions, and/or just to let me know how things worked out.

"Today's the best day of my life...and NOW you're part of it!"

Mar 26, 2009 | Computers & Internet

2 Answers

How to turn off burn-in mode if botton on Monitor

I didn't have the monitor connected to the computer, and that's why the power button was unresponsive. After connecting it, the solution above worked for me.(My KVM switch was set to a computer that was turned off)

Oct 07, 2008 | Sceptre DCL9a

6 Answers

Analog Power Saving Mode

Firstly check the connecting cable from the screen to the computer at both ends. Ensure that the thumbscrews that keep the connector in place are tight. Has the PC been moved recently? Any chance the cable could have been put in the wrong place? You can get the installation manual on the following link to see where that cables should go: Try resetting the monitor by pressing the "Auto/SET" button on the front panel for a few seconds with the PC on. If that fails you can do a full factory reset on the monitor by using the on screen menu and navigation to the "reset" function on the setings (gearwheel) page. This is described in the manual page A12. If all this fails then disconnect the cable to the monitor, the monitor should display "no input signal" if it does suspect the PC graphics card is faulty.

Jul 30, 2007 | LG Flatron L1750S 17" LCD Monitor

Not finding what you are looking for?
Dell Latitude D800 Notebook Logo

1,371 people viewed this question

Ask a Question

Usually answered in minutes!

Top Dell Computers & Internet Experts

Les Dickinson
Les Dickinson

Level 3 Expert

18411 Answers

Alun Cox

Level 3 Expert

2668 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