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).
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.
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.
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.
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.
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.
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.
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.
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August 25th, 2009 at 4:35 am
Hi
I have read your topic about the white LCD screen and I have the same problem. But on my HP compaq it goes to a white screen but there is no harddrive light on and also it wont power down unless i take off the battery. I have also tried via the VGA lead and it doesnt come up with anything (just black blank screen on tv)
My brother put the windows disk in and tried but nothing until about the 15th attempt and it let me in and i manged to save some files until it did the same and went to white screen again. This is still the case ?
Do you think its my motherboard and if so is it easy and cheap to replace???
Many thanks steve
August 23rd, 2009 at 4:37 pm
Thanks so much – helped me figure out why my screen was white!
August 19th, 2009 at 2:40 pm
HI I have the same issue, i have a sony vaio laptop(VGNFE865E) recently by accident few drops of water were spilt accidently however i was quick to flip the laptop upside down so that no water gets logged on the motherboard. It worked fine till today(the water spill happened almost a month ago) but suddenly today it is not working. Is there a chance to save my laptop if yes how can i do that or appreciate if i can get a shop name and place where i can take it to get this rectified. Appreciate you help in advance
Thanks
Sastry
August 19th, 2009 at 2:03 am
i have a compaq presario f700, the screen has been going white, flashing and the pictures jumps and freezes to, but sometimes its fine? i did a test with a external monitor and the picture was fine on that one, i want to try the cable thats conects the monitor to the laptop etc becuase i feel that might be the problem, any ideas? and how should i go about getting into the inside of my screen? im new at lcd screens but i feel this maybe easily rectified, any help would be most appreciated, thanks chaz
August 19th, 2009 at 2:02 am
Hi,
my laptop is ACER, at time M/B is not good and my LCD pannel is good. My LCD pannel is join to 4 pin. I went to know, how to join this LCD pannel to VGA cable.
August 18th, 2009 at 4:11 pm
Elizabeth,
Did you have a chance to test the laptop with an external monitor? Do you get the same problem on the external screen?
August 18th, 2009 at 3:49 pm
My screen is yellow and green. I will turn black as well< what do I do?
August 12th, 2009 at 6:07 pm
I know nothing about taking apart an LCD screen, but when my screen turned white I followed the directions. And thank YOU for such precise instructions because my Toshiba Satellite laptop is up and working again without purchasing anything. The cable was loose. You saved me! Thank you!
August 11th, 2009 at 12:07 pm
Hi, Iv got a compaq c300.. I noticed a fault with small sharp flashing lines so after reading a few surgestions I tested the connection on the back of the screen, took it out and replaced it. All I get now is the white screen connection securly connected but still the white screen. Do you think its the screen or the cable??
August 9th, 2009 at 7:16 pm
Nandy,
Your pictures and description sounds like a problem with the controller board inside the LCD screen. That means the LCD screen has to be replaced.
You can search for a new LCD screen here and probably find it very inexpensive.
The LCD replacement instructions are located in the service manual, here’s the link.