Laptop LCD screen turned completely white
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.
Entry Filed under: LCD Screen Repair
46 Responses to “Laptop LCD screen turned completely white”
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Pages: « 5 4 3 [2] 1 » Show All
May 30th, 2008 at 6:48 pm
on a HP dv4000, I can barely see windows on the black lcd screen, no backlight, with an external monitor only works if the lcd cable is disconnected from the motherboard, is the problem the motherboard? need advice……..
May 30th, 2008 at 5:08 am
Good Try it could be LCD, LCD Cable, and Video chip issue;
From Laptop Repair Technician
May 29th, 2008 at 9:45 am
HI, I WAS WONDERING IF ANYONE COULD HELP ME LEARN HOW TO REPLACE MY LAPTOP RIBBON CABLE FOR MY SCREEN FOR A HP DV8000. I WOULD LIKE TO DO THIS JOB MYSELF BUT I DO NOT KNOW HOW TO TAKE APART THE LAPTOP TO DO SO.
IF YOU NEED MORE INFO FROM ME TO HELP EMAIL ME AND I’LL GIVE YOU THE INFO.
THANK YOU SO MUCH
H.P
May 22nd, 2008 at 6:50 am
I’ve got a similar problem toFathi (13) but mines an acer. When I apply pressure to the keyboard area or bend it slightly the screen goes flikery and messed up.
I’m going to have a go a wriggling the video cable and hope for the best - good plan or not?
May 21st, 2008 at 5:38 pm
Thanks CJ. Do you know how many different kinds of connectors there are? I would buy a cracked screen of each kind to use for testing if there were just a few different types.
May 21st, 2008 at 2:35 am
HIII cj2600 I did just as u told me but the external monitor worked perfectly no damage on the video or flickering…. please help me
May 20th, 2008 at 1:09 pm
Hi from Italy, my brother’s notebook, an Asus L3TP L3500, has a white screen since 4 years: Many people look into it to find what’s going wrong: at the end, after many years and many repairers, this is the response:
1) the LCD is ok
2) the mother board is ok
3) the inverter is ok
4) every connection into lcd is ok
There’s an other idea in your opinion to explain white a screen apperas so white? The notebook works perfectly with an other external monitor.
Thanks if you can give me your opinion
“Ciao” (Bye)
May 19th, 2008 at 1:18 pm
Thanks cj2600 i will try it tomorrow cause the laptop is at work and i’ll tell ya what happened with me…. thanks again
May 19th, 2008 at 12:59 pm
Fathi,
Test your laptop with an external monitor and find out if the external video goes bad too when you move the laptop LCD screen. I’m just trying to narrow down the problem and find out if it’s related to the LCD screen or something else.
May 19th, 2008 at 12:18 pm
Mine is a Compaq, when I move the screen forward of backward it flickers and gives a damaged image when get my hands off of it it works well,,,, can u assist me please… and thanks in advance