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All of a sudden dotted line was found in the middle of screen of LENOVO B 460 series laptop. Request to let us know the root cause and solution

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The cause would be a problem with the LCD (liquid crystal display)
You could try to disconnect and reconnect the screen (You will need to open your laptop) but you may just have to replace the screen, any repair shop would be able to repace the screen.
But if you are tech savvy you could do it yourself :)

Posted on May 29, 2011


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Posted on Jan 02, 2017


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If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience.
Faults & possible causes to LCD screen are given with illustrations. You can get an idea about the fault to an extent.

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What could be the problem with my laptop (Lenovo G460, Processor - Intel Pentium)

Does it come back up if you reboot? If so, you might have a video driver problem. Your laptop has an Nvidia N11M-GE1 graphics chip integrated into the system. You can download the drivers here:

However, you may have a worse problem. White screen issues are often caused by bad cabling, in which case you (or a certified technician) would have to open your laptop's bezel and check the wiring for the screen.

Third possibility is ensuring your power options are set to NOT turn off the screen after any amount of time. Sometimes Windows doesn't recognize that something as simple as a movie is currently playing, so it tries to hibernate, and that causes the issue.


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I have (suddenly) a single dotted black line about a quarter wasy down my screen on laptop. Can I get rid of it?


First, you need to verify if the dot is cause by faulty graphics chip/card or LCD/LED. To do this use external monitor, if you cant see dot on your external monitor then you have faulty LCD/LED if you see dot like in your laptop the you have graphics chip/card problem.

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I hav lenevo N100. suddenly i got fine line horizontally middle of the laptop. what should i do.

- first boot to bios by pressing F2
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T61 Screen Problem

If the line runs top to bottom and is perfectly straight then it is the panel beginning to fail.
The LCD that you see connects to a driver board behind it with a very fragile plastic ribbon strip. Any even slight damage to the connection on either side and you begin toget the problem you have.

It could have been caused by a few things.. Excess pressure opening the lid will cause it, as will closing the lid quickly too often.
Flexing the screen (opening the lid only using one hand on one side).
As you see it's more a pressure related issue then anything.
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If the line is feint enough, then adjusting the brightness and contrast may make it useable long enough until it is retired or a replacement screen can be found.

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