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Monitor with white lines ... it was checked by an IT...said flex cable should be replaced...laptop working when connected to another monitor

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Yes! I would agree with him, the flex cable constantly stressed when the laptop is opened and closed and it will produce the white lines on the screen when it becomes defective.

Posted on Mar 24, 2011


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Why does my monitor start as white when I turn it on? THe mouse pad does not work as well.

Monitor cable disconnected internally?

and disconnect, clean and reconnect ALL monitor related cables. (You may need a new screen if that fails)

You may check your laptop by connecting an external monitor first.

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Aspire One AO725-0635 powers up but screen is black with white lines. Not dropped, just happened suddenly. We powered down, removed and put back battery. Still monitor black with white lines. Help! ...

Lets step through some trouble shooting. Can you plug in an external computer monitor? If this works then it is cable connections to the notebook monitor. If a normal computer monitor does the same thing it is potentially video settings or hardware. Since there is some kind of output then the video card is outputting so it us not likely the video card has failed not impossible just less likely. If the external monitor works and the laptop one still fritzed check the video settings are right. If video settings are ok then it could also be cables issue on the laptop. Faulty RAM chip can also cause the problem as described this is also worth checking.

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Thin white line down centre of laptop screen


Thank you for your query

Please can you try the following

1) Borrow a external monitor and connect to the laptop
2) If the white line can be seen on the external monitor the fault will lie with your graphics card.

However i suspect you will see no line and the fault is with the screen or more likely the cable going from your motherboard to your screen, if this is the case you will need to book in to a reputable pc store for repair


Sep 24, 2010 | Computers & Internet

1 Answer

No display Only lines. Display appears ok in external monitor.


This is a Flex (what connects the motherboard of your laptop to the screen and also what passes information from the motherboard to the screen) problem.

A flex is found in all laptops..the more you open and close the laptop the Flex gets weak,that is what cause the lines.Sometimes it might be just a white screen

The best solution is to change the Flex of your laptop.


Mar 27, 2010 | HP Presario C700T Notebook

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Why are there green and red lines on my mac lcd

Them monitor is starting to fail. You will need to purchase a new one unless you are still under warranty.

Nov 16, 2009 | Compaq Presario M2000 Notebook

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The screen is black and I can work only with an external monitor. Could you help me please. My laptopo is an Inspiron 6000. Thanks.

yea sure.
this happend when the flex cable that connects the main to sub its the lcd in this case to its time for new flex cable also its an esay part to replace and find especialy for you laptop.

May 09, 2009 | Dell Inspiron 6000 Notebook

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Power is on but screen is blank

You can connect your laptop to and external monitor, if this works well then you need to replace your flex video cable, if your lcd turns on white your inverter it is working well, but your video needs a little help replacing flexible cord. This will fix your problem


Apr 27, 2009 | HP 530 Notebook PC

1 Answer

Screen not working properly.

It could be the video card built onto the motherboard or the LCD Flex Cable running from the motherboard up through the hinge to the LCD panel, or possibly the panel itself. It could even mean the Flex cable has partially dislodged from the LCD connector.

Test first by attaching an external monitor. If you get an image externally then the video circuit is good. If not, check your warranty and have it serviced professionally as it would mean a motherboard repair or replacement.

If it is the Flex cable or panel, you may still want to have it serviced depending on your level of expertise. Removing and disassembling LCDs is not very difficult with this model, but it could be challenging if you've never done it before.

Dec 30, 2008 | HP Pavilion dv6000z Notebook

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Blank white monitor

mostly the problem is cause by loose flex cable only connected to your lcd panel board. check if it mounted properly, otherwise the lcd panel board may be defective.

Aug 16, 2008 | Sony Computers & Internet

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