Question about Toshiba Satellite A105-S4004 Notebook

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My screen has horizontal lines across half of the screen. I hooked up to a external monitor and it worked fine. What is the problem?

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Hi,
It would physically be in the LCD screen of your computer. If the monitor is working fine therefore there is nothing wrong with the video processing output or the drivers in the operating system. It would be in internal crack on the LCD or a loose connection with the LCD screen and the motherboard.
Its best to have your laptop checked by a service technician and dont just disassemble it by yourself to prevent accidents. Worst case is that the LCD needs to be replaced if really found cracked/defective.
Hope this helps.

Posted on Jul 08, 2010

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Either you can hook up an external monitor or access BIOS setup (Basic Input/Output System) to replicate if the horizontal line appears. This step will check if the problem is with the video card or the LCD.

If you get the horizontal line on the BIOS or never get it on the external monitor, then surely the LCD screen is beginning to fail. You need to reinsert and/or replace the LCD inverter or LCD itself.

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Hope this helps, and please rate my answer, good OR bad.

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