LCD screen turned completely white

posted in: Screen | 335

What can you do if the laptop LCD screen turned completely white? From my experience I can tell that this problem may be related to the following:
1. Loose connection between the video cable and the LCD screen.
2. Defective LCD screen.
3. Defective motherboard (I assume the graphics card is integrated into the motherboard).

Laptop screen is white

Here’s an example of a laptop with white screen. When you turn on the laptop, it starts but the image on the screen is completely white right from the beginning. In my case it was a Toshiba Satellite M45 laptop but this problem may occur with any other brand.

Test laptop with external monitor

Most likely you still can use the laptop with an external monitor. Just connect the monitor to the VGA port on the back or side of your laptop and then switch the video output from internal to external mode.
On Toshiba laptops you can toggle between internal and external screens using Fn+F5 keys. Hold down Fn and press on F5 until you get video on the external monitor.
On IBM laptops use Fn+F7.
On HP laptops use Fn+F4.
It’s possible that you have to use a different key combination on your laptop but you get the idea.
On some laptops, in order to be able to use the external monitor, you have to connect it to the laptop and then restart the laptop so the external monitor is detected by the laptop.

Laptop video cable

I noticed that in some cases the laptop screen may turn white because of poor connection between the video cable and the LCD screen. If you want to check this connection, you’ll have to take apart the display panel because the connector is located on the back side of the LCD screen.
These laptop service manuals and disassembly instructions may be useful.

Reconnect video cable

I always check the video cable connection first. Reconnecting the video cable may fix your problem.
If reconnecting the video cable doesn’t help, most likely you have a problem either with the LCD screen or with the motherboard.

Disconnect LCD screen

The best way to find out witch one is causing the problem is testing the laptop with another working LCD screen. Without this test you’ll have to guess because as I mentioned before this could either bad motherboard or bad LCD screen.
You’ll have to disconnect the video cable from the LCD screen (connector 2) and the inverter board (connectors 3 and 1). After that you connect another working screen and test video.

Test laptop with another LCD screen

For this purpose I’m using one of my test LCD screens. My test screen is cracked and because of that you see a wide white band in the center but it still works fine for this test.
The original screen is white but my test screen works normal (except the crack of course) and I can see the image. After this test I can tell that the problem must be related to the screen.

White LCD screen

After I assembled everything back together and connected the original LCD, it’s still white.

CONCLUSION. In my case this problem is related to the LCD screen and it has to be replaced.

335 Responses

  1. @ Terri Pendergrass,

    It goes straight to white as soon as the power key is pressed.

    Test it with an external monitor attached. If external video works fine, check the display cable on both ends. Make sure it’s plugged correctly into the motherboard and display. I’ve seen loose connections causing this problem.
    If reseating the cable doesn’t help, you’ll have to try replacing the screen.

  2. Terri Pendergrass

    My toshiba satellite will power on like it should but as soon as it powers up, the screen is totally white. No sign on page, no windows logo, no nothing but a white screen. I have unplugged it, removed the battery, tried control, alt, delete and still nothing at all except a plain ole ugly white screen.It goes straight to white as soon as the power key is pressed. I have tried about everything that has been suggested short of giving it a pilot’s license (tossing it out the window and seeing if it can fly). Any suggestions would be greatly appreciated

  3. Sharad


    My laptop screen does go white with black lines, however adjusting the screen gives me the picture back. At times it doesn’t work, so not sure if it is issue with lcd screen. Any suggestions?

  4. cj2600

    @ joseph,
    I’ve never seen a virus like that. Could be corrupted video driver.
    Try booting in safe mode (press F8 when logo appears on the screen). Will it work in safe mode?

  5. joseph

    Cj2000…Could it possibly be a variation of the white screen virus? My laptop booted to the username screen. When I chose one without a password, the white screen the came on.

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