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I'm having some troubles with the display of a LG E500 notebook. The thing is that without any known reason the display starts to show the screen divided in eigth parts and each part show the display image as if I had a matrix of eigth displays :)

I thought it could be some kind of refresh rate problem or driver related, but it is happening at boot-up as well and the BIOS. I got the computer completely unassambled yesterday and I check all the wires and connectors looking for something broken or unconected, but without luck...

You can see a picture here of the problem (sorry for the low quality, but I think it illustrate the problem.

LG E500 Error display

EDIT 1:

I uploaded a new pictrue, here you cans ee the problem better :)

There are three horizontal lines that you can see just between the windows. You can see the grey line at the first moment you turn on the computer and the after the duplicated screens show up just like if they where arranged over a grid (over the horizontal lines...)

I hope it makes any sense.

LG E500 Error display 2

Do you know what could be happening? or can you tell me what would you do?

Thank you very much for your help.

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3 Answers 3

up vote 3 down vote accepted

It could have multiple causes:

It only occurs when booting into Windows, not when booting a Linux LiveCD or during the POST: It is most likely a Windows driver conflict that is causing your display to malfunction.

It occurs always, also during the POST:

  • Your (onboard) graphics card is malfunctioning, you'll have to replace the mainboard if it's an onboard card or the graphics card itself if it isn't.
  • The (flat) cable or other connectors that are between your graphics card and the display is broken.

I'd recommend sending it in to LG for warranty if it is still under warranty. If not, contact your local tech guy or replace it yourself.

Judging from the picture you posted, it also happens at POST, so I think the latter is what's happening with you.

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Hi, i think the warranty expired already... I have been checking, cleaning and moving the conectors and the cables inside without any clue or even any change in the display image. It happens at POST as well and the graphics card is integrated... so i think the fix is complicated :) –  SubniC Mar 17 '11 at 12:35
    
@SubniC You could try an external monitor, if that works properly, it's likely there's something wrong with the feed (e.g. the cables/connectors) to your display and not the graphics card itself. –  BloodPhilia Mar 17 '11 at 14:38
    
@BloodPhilia I've tryed the external monitor but i was not able to configure it looks like windows doesn't recognize the external display. –  SubniC Mar 17 '11 at 15:45
    
@SubniC There should be an FN key to enable the external monitor... –  BloodPhilia Mar 17 '11 at 15:49
    
@BloodPhilia yes there is but it is not working, the screen gets black for a second and after get back to the notebook display. –  SubniC Mar 17 '11 at 15:56

One question: Is this an intermittent fault?

A few suggestions: 1) Try it with an external monitor. If it works, then your problem is most likely cables or screen. If it is the same, then your problem is most likely graphics chip or drivers. 2) Delete your display adapter, reboot and re-install .

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Hi, The problem was intermittent some time ago, after a while it becomes a full-time fault. I think the display is never going back to live again... –  SubniC Mar 17 '11 at 15:44
    
@SubniC Did you try deleting and re-installing the display adapter? –  caffeinedependent Mar 17 '11 at 16:23
    
@SubniCYou mention that you don't think your Fn key is working - I have an LG laptop and on my model you need to hold down Fn and press F7. Anyway, each time you press F7 it cycles through different configs. I don't know whether yours is the same but it should be either F7, F4 or F5, so try pressing the relevant button a few times to see if any of the configs works for your external monitor. –  caffeinedependent Mar 17 '11 at 17:45
    
I've been trying to make it work but i couldn't –  SubniC Mar 18 '11 at 11:04

Well, at the end I think I figured out what is going on with the notebook. I've been looking into the issue and is very similar to some problems that HP notebooks have had some times as well as the XBox 360.

I think the problem is temperature related, the BGA package of the GPU got too hot and the soldering between the GPU and the motherboard gets cold (cold solder)

Because of that the computer start failing intermittent and now, after some time, is a full-time problem, I can't assure it yet, i guess that I will need to reball the GPU to make sure the problem go away, but that is a bit delicate because you need some tools and skills.

I leave here the most relevant information I found, just in case it can be useful for someone. I apologize because not all the information is in english language.

P.S. Thanks a lot to everybody for helping me :)

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No problem! Just hope you can sort it out without needing to replace the mobo, as that is usually not worth the cost. –  caffeinedependent Mar 18 '11 at 12:23
    
how did you solve the problem in the end? I also have a LG E500 with exactly the same problem :( –  andrecarlucci Apr 22 '11 at 23:46
    
Me too, its a common problem on these computers. –  SoMoS Mar 15 '12 at 20:41

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