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Thick Black Line on Screen

My laptops screen has a thick black line close to the middle of the screen. I tried moving the screen around to see if it had any effect but it didn't. I restarted the computer and that did nothing - the thick black line is still there.

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  • SusSky Dec 06, 2008

    I have two kind of ragged lines running vertically down the screen - have also tried to reboot to fix the problem - min is a vgntxn15p.  In to the shop!!! 

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This is caused by dead pixel sensors. There are hundreds of pixel sensors at the edges of the screen, when they go out it will cause a line varying in size depending on the amount of sensors that go out, and the line can vary in color, red, blue, green, white, and black. Unfortunately, the only fix for this is to replace the screen.

Posted on Jul 30, 2008

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If it's a single pixel line, it's a bad contact right in the glass itself.
Single line defects can sometimes be repaired by placing sponge or rubber inside the LCD housing so that it presses against the LCD panel to force the contact back closed, but this is just a bandaid in most cases, and won't last long.
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I have 3 black lines running across the centre of the screen of my compaq laptop,2 thick,1 thin.


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My toshiba laptop has a thick white line down the screen


The normal cause of lines across the LCD of a laptop is a damaged video cable. The unusual cause would be the video card itself.

To determine which item is at fault, you need only attach an external monitor to your laptop's video-out, and then swap your monitor view to 'both' or mirrored (usually just the function key (FN), plus one of the Fkeys...look for an off-blue picture of a monitor on the Fkeys).

If the lines across the screen also appear on an external monitor, then the video card is damaged.

If the lines only appear on the laptop's LCD, but not the external monitor, then just the laptop's internal video cable is damaged.

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I have a Dell Inspiron 9300


if there is white line in the middle of the screen then first of all turn off the laptop and disconnect the ac adaptor and take out the battery and press and hold down the power button without the power cord and the battery for one minute and then turn on the computer with power cord and the battery and then check it out and still after that if u get it then check it out with the external monitor and if u get a good display in the external monitor then replace the lcd,but make sure that the screen is not broken from inside which u cannot touch and feel it.and if u get a good display in the external monitor then definately replace the lcd screen....good luck

thanks

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