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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February 22nd, 2010 at 7:25 am
Hi,
Currently am using Lenovo 3000 N200 laptop with 15′4 disply it is working fine am completely satisfied with the way it works. recent fast I was identified there is a white shade appeared in the bottom of the screen. A person from my work told me that it is a display problem but i strongly belive that it is not a disply problem I presume that something relted to setting am not sure… can some one plz guide me if am worng…
Thanks in advance
Koti
February 16th, 2010 at 5:31 pm
Sir,
Similar thing happened to my Sony Vaio CR190 LCD this weekend. Hehe, you know why I am here. LCD panel show very bright white (some black line, spots and bordering). This happens from BIOS POST onwards (so not a Windows/Linux) problem.
The laptop runs perfect with an external LCD monitor connected to the projector (VGA) port. very rarely the LCD panel on the laptop also shows perfect picture.
I will try re-seating the LCD panel video cable.
So my questions are:
Is it a GPU/MoBo/VRAM problem or is it an LCD-panel/inverter/cable problem ?
It is possible to replace LCD-panel/cable/Inverter ? The laptop’s outside warranty and Sony is asking for $400+ for replacement, too much in my opinion.
Where can I buy replacement LCD-panel (if that is enough) ? Are the ones on eBay reliable enough ? Or are there reliable sellers out there on eBay ?
Running the laptop with an external monitor sort of defeats the portability factor. I would really want to keep it portable. Any help will be appreciated !!!
Thank you,
Bubai
February 14th, 2010 at 6:33 am
Hello
I have a Dell 1501. One day water drops got into it and since then i cannot use it properly.
When i attach an external monitor, i can use it.
Recently i opened it and moved the LCD (the whole thing) to a Dell 1505. And the LCD worked.
But when i use the laptop with it’s LCD nothing in displayed. I see a difference in lighting thou.
What is the problem?
February 11th, 2010 at 9:25 am
BjjDrh,
Can you test your laptop with video on the external monitor? Can you get the external monitor working?
February 11th, 2010 at 9:16 am
The other day my 1 year old daughter got ahold of my laptop, and she threw her toy at it, and left a crack in the bottom…Now I see a black screen when I turn it on…The computer is running and the screen lights up, it just is black…She hit the computer perfectlet in the middle of the back…What would you think needs to be repaired for this?
February 10th, 2010 at 11:10 pm
Sarah,
It would be nice if you can take a picture of the faulty screen, upload it somewhere (Flickr for example) and post here a link.
February 10th, 2010 at 9:23 pm
i was using my Dell XPS M1330, and the internet froze, then the screen went black. i restarted it and the screen appeared if it was broken, it was all white with a big black spot on it and lines. i left it untouched for about a month, turned it back on and it was fine. an hour after using it the same thing has happened again. it turns on fine, you can hear sounds and everything but the screen still wont work. i dont really know how to explain it all to well, any ideas on what i should do?
February 9th, 2010 at 7:10 pm
Billy,
I have an ASUS G2S and turned it on the other day and just get a white screen but you can hear the system boot up in the background. It has done this about 3 months ago but if you let it run for a few minutes the screen would return to normal. Tried to hook an external to it but will not recognize it.
Any ideas?
February 9th, 2010 at 4:43 pm
Be Na,
First of all, I would check memory modules. Try reconnecting both modules. If the problem still exists, try removing memory modules one by one and test the laptop with each modules separately. It’s possible that one of the modules is failing and the laptop will start working normally when the faulty module is removed.
February 8th, 2010 at 7:05 pm
Hi,
I have HP laptop for about 2 years. This morning when boot up it showed dark screen. Turn off and turn on again it works as normal. Later the same thing happened the first boot up showed dark screen. Turn off and on, the laptop worked as normal. So, it needs two boot-up to start running.
Any idea what is going on?
Thank you.
Regards,
Be Na