Comments on: Laptop LCD screen turned completely white

By: cj2600

cj2600 — Tue, 10 Nov 2009 07:03:58 +0000

Rob,

I hope someone can answer my question. When using another screen to test the laptop, does it need to be the same size as the original one? i.e. could I test my 15.4″ widescreen laptop with an older 15″ screen as long as the connectors are the same?

It’s hard to tell. I would think that you should test the laptop with another 15.4″ screen.
I don’t know if the 15″ screen will work, I haven’t tried it myself.

By: cj2600

cj2600 — Tue, 10 Nov 2009 06:35:52 +0000

Ernest,

I have tested the backlight and the inverter board everything is ok and power to the inverter board is also ok but my lcd screen is still dim, what should i do. Please if there is a fault on the motherboard how would i fix it.

It’s impossible to tell what is wrong without testing the laptop. Maybe you have a stuck lid close switch and the laptop “thinks” that the display is closed even though it’s opened.
When the display is closed, it activates the lid close switch and the backlight goes off.

By: Rob

Rob — Tue, 10 Nov 2009 01:20:40 +0000

Hi.

I hope someone can answer my question. When using another screen to test the laptop, does it need to be the same size as the original one? i.e. could I test my 15.4″ widescreen laptop with an older 15″ screen as long as the connectors are the same?

Cheers

Rob

By: Ernest

Ernest — Sun, 08 Nov 2009 20:46:41 +0000

hi,
I have tested the backlight and the inverter board everything is ok and power to the inverter board is also ok but my lcd screen is still dim, what should i do. Please if there is a fault on the motherboard how would i fix it. Thank you.

By: cj2600

cj2600 — Tue, 03 Nov 2009 20:13:57 +0000

Emmanuel mwaba,

I have the problem with my HP compaq laptop cn6120. when I switch it on it starts normally and it hangs up after a few seconds until I press near the mouse pad. when it opens into windows again it hangs and brings a pop up message saing power surge on USB port hub.

It’s hard to tell what’s going on because it’s not a common failure.
Try reseating memory modules. Maybe one of the modules is not making good contact with the motherboard.
Test the laptop with only one memory module installed, try it in different slots. Maybe the memory slot is bad.

By: Emmanuel mwaba

Emmanuel mwaba — Mon, 02 Nov 2009 11:45:13 +0000

I have the problem with my HP compaq laptop cn6120. when I switch it on it starts normally and it hangs up after a few seconds until I press near the mouse pad. when it opens into windows again it hangs and brings a pop up message saing power surge on USB port hub. Could you please help me solve this problem.

By: cj2600

cj2600 — Mon, 26 Oct 2009 04:45:37 +0000

Suvesh varghese,

My laptop lcd screen shows white blank screen. I connected with an external monitor but i am not getting either ” the white screen” nor the normal screen. Thus it is neither showing white screen nor working properly.

1. Could be bad connection between video cable and LCD screen. Try reconnecting the cable.
2. If reconnecting the cable doesn’t help, most likely you have a failed screen. You cannot fix the screen. You’ll have to replace it with a new one.
3. Could be a problem with the motherboard.

By: Suvesh varghese

Suvesh varghese — Sat, 24 Oct 2009 11:14:36 +0000

I have a SONY VAIO VGN-CR23G laptop.
My laptop lcd screen shows white blank screen.
I connected with an external monitor but i am not getting either
” the white screen” nor the normal screen. Thus it is neither showing white screen nor working properly.

I tested my external monitor with another laptop, it is fine
Sony service people say categorically that my LCD has to be changed cost around 250$, which is not acceptable to me.
Kindly show me some light

By: krissbay

krissbay — Sat, 17 Oct 2009 21:50:51 +0000

hi,
i also hav a white screen problem but i think a bit complicater.
my laptop falled down and the screen broke ,its now completely white .do you thing its the inverter ,the screen or both i have to replace ? please notice that the screen is a 16,4 ” CCFL 2-Bulbs and i dont hav the possibility to find another one just for test purposes .
here a picture : http://img49.imageshack.us/img49/7489/img0992.jpg

By: Charles Santerre

Charles Santerre — Fri, 16 Oct 2009 09:16:38 +0000

Hi, I wanted to leave a follow up to my white screen issue. I initially thought it was the video cable because the connector going to the mobo seemed to be in less than perfect condition. However I got to thinking: on a cold start everything worked fine. It’s only once the pc was running for a while, after which I would do another test reboot, that the screen would be white. Initially I had scotch taped the excess wire from the screen to the inverter because I was afraid it would get tangled or too much pressure would be applied to the wire and it would cut off. Anyhow I removed the tape and shoved the wire in a crevice under the screen, out of the way. Also I removed the material around the video connector going to the mobo and re-taped it with black electrical tape and made it more snug. It works fine, I did lots of long tests and many reboots and everything is ok.