Laptop LCD Screens

I have seen this problem several times on assorted laptops. The screen gets hundreds of horizontal lines. Sometimes you can see windows sort of behind them. Is this the backlite or the LCD. I used to have one years ago that thumping the bezel on the screen would fix the problem.
Always2L8Asked:
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kiranghagCommented:
maybe a loose contact somewhere...
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asmodeusnzCommented:
This is the LCD. You could check the video cable underneath the keyboard to make sure its connected properly. If it is then the screen is on its way out. Sometimes (Its worked for me, but only temporarily) is you can give the screen a GENTLE squeeze on both sides of the laptop. Unbelieveably this sometimes fixes the problem you are having.

Cheers
Rodger
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philby11Commented:
If the screen is getting hot at the back it can mean the power supply for the screen is fritzed.
I've seen one that lasted like that for years, the guy just put up with it.
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publicCommented:
It is most likely a bad row driver on the lcd panel. This is not a field repairable problem
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publicCommented:
It could also be an intermittent connection between the row driver and the metal traces. Thumping may temporarily fix it, but thermal cycling would open it again.
You need a new lcd panel.
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mitchetCommented:
If the lines fill the entire screen, it sounds to me like the refresh rate is set incorrectly on the display adapter. LCD's (especially early models) have a maximum refresh rate of 60-70Hz. Since most CRT monitors are generally set to around 85Hz, when an LCD is plugged in and the refresh rate is not changed beforehand, you get a screen full of lines and generally offset to one side (or overlapping).
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