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G570-17
Fanfold Paper
Posts: 4
Registered: ‎02-01-2017
Location: US
Views: 208
Message 1 of 3

LCD display dark, but with a flash light can still see the desktop faintly

My G570 is acting strange,  OS is windows 10.  Laptop works with external display but will not work with the local LCD. But if I flash a light on the screen I can see the screen shown on the external display. I am not getting any light on the LCD. LCD light settings adjusted to high.

 

Any help will be appreciated.

Community SeniorMod
Community SeniorMod
Posts: 8,573
Registered: ‎01-01-2010
Location: US
Views: 203
Message 2 of 3

Re: LCD display dark, but with a flash light can still see the desktop faintly

There are 2 common things that can cause the problem:

 

1)  Blown fuse in the motherboard

2) Hall sensor in lid

 

The Hall sensor is a magnetic switch that senses when the lid is closed.  It determines that event when a magnet in the palmrest or keyboard bezel gets near to the switch in the lid.  A brolen palmrest or failed sensor will cause it not to work.


Rich


I do not respond to requests for private, one-on-one help. Your questions should be posted in the appropriate forum where they may help others as well.

If a response answers your question, please mark it as the accepted solution.

I am not an employee or agent of Lenovo.
Lenovo Technology Partner
Posts: 570
Registered: ‎07-07-2014
Location: PH
Views: 156
Message 3 of 3

Re: LCD display dark, but with a flash light can still see the desktop faintly

Hi, 

 

In addtion to what richk mentioned, the LCD backlight might defective also, and you would need to get the lcd panel replaced. 

 

Cheers,

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