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Why does my laptop screen go white when i switch it on

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It is not getting signal from your motherboard

Posted on Apr 04, 2008

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Laptop white screen


Having a laptop screen turn white is one of the most frustrating problems a user can experience since it prevents use of the laptop to find a solution.
A white laptop screen indicates a serious problem with the laptop's hardware, and no easy solution to this issue exists.
Just diagnosing this condition requires advanced computer knowledge.
Identification

With this problem, the laptop itself will power on and load the operating system as per usual, but the screen will become a complete, static white, according to LaptopRepair101.
No particular brand or make of laptop falls prey to this issue more than any other; it can happen to any laptop.

Causes
Since so many different brands and models of laptops exist, specific causes of a white screen vary from laptop to laptop.
The likely cause in most cases of a white screen on a laptop is a connection problem between the LCD screen and the video cable running from the motherboard.
The issue can also reside strictly with the motherboard or the screen might contain a defect.

Considerations Users can diagnose a white screen problem by opening up the laptop display case to determine whether a loose video connection on the back of the LCD screen exists.
Reconnecting the video cable should resolve the white screen; a video cable reconnection that does not fix the white screen narrows the root cause to a problem with the motherboard or the screen.

Motherboard Problems
The only way to determine if the laptop screen turns white due to a motherboard problem is to test out a different, working LCD screen with the laptop.
This requires the user connect the inverter board--the power supply for the LCD backlight and the video cable to the test LCD.
If the test LCD works with the motherboard, then the laptop's screen needs replacing; otherwise, a new motherboard is needed because there is no way to replace an integrated graphics card on a laptop motherboard.

Prevention/Solution
Taking apart a laptop screen may make some users feel uncomfortable, so you can use an external monitor connected to the VGA port common to most laptops if the processor and hard drive still work fine. Using an external monitor requires finding the proper function key command to toggle between the LCD and external monitor.
Warning
Taking apart the LCD screen on a monitor likely voids any manufacturer's warranty.
Consider visually checking the video connection to the laptop screen as a last resort if no other viable options exists.
The service manual that came with your laptop likely offers some tips to disassembling the computer, or conditions that could void the warranty.

http://www.laptoprepair101.com/laptop/2008/04/13/laptop-lcd-screen-turned-white/

Jul 02, 2013 | Dell Inspiron Computers & Internet

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My pc is showing a white screen when iys on


Is it an LCD monitor ?
When an LCD screen has turned completely white, there are three normal causes: the screen is defective, the video cable is not connected correctly, or the graphics card on the motherboard of the computer is faulty. You will need to troubleshoot these possibilities to determine which problem you have. If you are not experienced in working on computer equipment, you should not attempt to disassemble your LCD screen because you could easily damage it. Seek professional assistance unless you have experience working on computer hardware.

Disconnect the white LCD screen from the computer by unscrewing the blue monitor cable. Connect the working LCD screen to your computer by attaching its blue monitor cable to the same slot. If your computer display does not show on the functioning LCD screen, try rebooting your computer. If it still does not display, the problem is with your computer's graphic card on the motherboard. Seek professional repair assistance. If your computer display shows normally on the working LCD screen, proceed to Step 2. Unplug the LCD monitor with the white screen. Disassemble the rear panel of the monitor with the small screwdriver. Carefully separate the screws into piles so that you can keep track of how to reassemble the monitor. Locate the internal video cable, a gray cable with a plug on the end that connects to the main components of the screen. See Below for the References section for photos of the video cable for assistance. http://www.laptoprepair101.com/laptop/2008/04/13/laptop-lcd-screen-turned-white/ Unplug the cable, checking for any debris or blockage. Reconnect the cable firmly. Reassemble the LCD screen. Plug it in and connect it to your computer. If the screen is still white, you have a defective LCD screen. You will need to replace it or take it to a professional repair service for assistance. Hope this helps.

Dec 30, 2012 | Compaq Computers & Internet

1 Answer

When I switch my laptop on and it gets to the log in screen, after I type my password and click log in the screen goes blank for a few seconds then a white screen pops up saying navigation to the webpage...


Click Start/Control Panel and look for Display or Appearance and Personalization. You can also just Right Click on an empty space on your desktop and select Properties. When the Display appears, click the Desktop tab and select a background.

May 18, 2012 | Acer Computers & Internet

1 Answer

Compaq 610 when i start vdu is white screen and


hI,
if the screen is completely white the problem could be a bad LCD cable. To cross check if the problem with the LCD or the motherboard. Connect an external monitor to the laptop. Tap the Fn + F8 key together to get the display to toggle to the external monitor if the display comes on the external monitor without any problems the problem is with the LCD and you would have to take the laptop for repairs.

Thanks for using Fixya
Proton

Jun 09, 2010 | HP Compaq 610 T5870 156 WH248UTABA...

3 Answers

I have the EXACT same problem


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Aug 16, 2009 | Sony VAIO® VGC-LS37E PC Desktop

1 Answer

Grey screen with white line on my laptop


I took the battery out then put it back in and it works fine now.

Apr 28, 2009 | Computers & Internet

1 Answer

When i turn on my laptop, it does not show anything. All it shows is just the white screen and nothing else. when i turn off my laptop(by pressing F4), i hear the sound that would usually come out when it...


your screen wiring may have gone bad. if you plug a regular monitor into the laptop, try pressing function + F4 or one of the F keys at the top. It should have a little monitor icon on it. Its a different key on some laptops. It will switch the display to use the monitor. Are you able to get a picture that way?

Jul 11, 2008 | Computers & Internet

1 Answer

While using the laptop surfing the web the screen just went white. I switched off and waited for a while but the same white screen. Even after 12 hours its still the same. Any ideas? The pc is just 14...


hmmm there are a number of reasions but you can try some,

Boot your lap in Safe mode:
  • Switch on the laptop then press F8 till the Windows boot option menu appears. From that menu select Safe Mode, if it works then no serious problem Just install driver for display and........ njoy
If any problem Just Ask me
Thanks Using Fixya
Iqbal

Apr 13, 2008 | Computers & Internet

1 Answer

I don`t have any picture on screen when i start my laptop. Is there only white screen,bud i`am listen from speakers windows is booted normaly...


try to boot in safe mode.
  1. Press F8 again and again while making switch on you lap till you get the boot option screen
  2. Then select Safe mode

  • If your windows starts and you can see on the screen, that means your display driver is missing, install driver for VGA and reboot in normal mode.
  • If even in safe mode you can't see any pic on the screen it means there is some problem in your display LCD and its time to take a tour to service centre

Thanks
Iqbal

Apr 10, 2008 | Computers & Internet

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