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 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
February 3rd, 2010 at 12:09 pm
If the image is displayed correctly via external monitor, but there is still a white screen on the LCD, could it still be the motherboard?
Have this same problem and have tried:
Three different LCD panels – all work in other systems, but not on the laptop in question.
Already replaced the inverter.
Already replaced the actual CFL on the original screen – not fun…
Only thing I have not doen is replace the ribbon cable from mobo to LCD.
So would a functioning external connection mean that the motherboard/GPU is still good and it is ONLY the LCd/Inverter/Cable?
January 29th, 2010 at 4:11 am
HI every one, can anybody pls help me out? when ever i put my IBM thinkpad T40 on without the power cable connected, it works very well. but while it is on, and i connect the power cable to the wall out let the screen starts to shake and then goes dark. Imean it gets black that you can not see any thing. can i get some help to solve this problem.(urgent pls)
January 22nd, 2010 at 2:42 pm
mark,
Instead of using the repair option, try installing Vista from scratch.
January 20th, 2010 at 1:58 pm
my laptop finds a installation disk of windows vista,, and when the repair is complete my laptpop didnt reboot properly., alli can see is the mouse cursor and a black background
January 16th, 2010 at 2:08 pm
Billy,
Did you buy the correct LCD replacement? Maybe your new LCD screen is not compatible somehow?
Also, could be defective LCD screen.
January 16th, 2010 at 2:45 am
Hello,
I have Asus X51r i replaced Lcd with a new one. When I turn it on it boots fine, but when it enter windows the screen is too much brightnes and poor contrast. Tried reinstall the os did not help. Also when i restart OS then in the boot up sequence is also too bright image. Only when i turn it off completely and then turn it on the image is ok, but only in boot up sequence.
Any suggestions?
January 13th, 2010 at 11:07 pm
i have a toshiba 7140ct w/ a screen which is 1/3/black(top),2/3 furry gray(bottom). there is a stripe about 1/8″ in between them that seems to be normal. ext monitor is ok.is this a screen prob,or inverter or what? thanx
January 12th, 2010 at 10:22 am
i will appreciate it