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Diefer79
What's DOS?
Posts: 3
Registered: ‎06-20-2015
Location: Spain
Views: 9,495
Message 1 of 8

Unable to adjust brightness in my windows 8.1 (G50-70 laptop)

I've noticed that I can not change the brightness of the screen. I can not change or buttons or brightness settings in the Power Options. I move the brightness bar and nothing happens.

Please help me. Thanks

Retired Support Specialist
Posts: 1,226
Registered: ‎11-18-2012
Location: Egypt
Views: 9,403
Message 2 of 8

Re: Unable to adjust brightness in my windows 8.1 (G50-70 laptop)

Dear Diefer

 

Welcome in lenovo community

 

Can you please let me know your machine model ?

 

Thanks

Alaa



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Diefer79
What's DOS?
Posts: 3
Registered: ‎06-20-2015
Location: Spain
Views: 9,400
Message 3 of 8

Re: Unable to adjust brightness in my windows 8.1 (G50-70 laptop)

Hello,

 

Thank you for your response.

 

My machine model is:

 

Lenovo G50-70

Model: 20351

S/N: **********    P/N: 59417411

MO: YB04032578

 

Mod comment: Serial number removed for members protection.

Retired Support Specialist
Posts: 1,226
Registered: ‎11-18-2012
Location: Egypt
Views: 9,382
Message 4 of 8

Re: Unable to adjust brightness in my windows 8.1 (G50-70 laptop)

Dear Diefer

 

Kindly use the below link to download and install ( Lenovo Energy Management, Intel graphic card and AMD graphic card )

 

Note : you will need to uninstall the existing one and reinstall the new using the link : 

 

Energy Management : http://support.lenovo.com/us/en/products/laptops-and-netbooks/lenovo-g-series-laptops/g50-70-noteboo...

 

AMD :http://support.lenovo.com/us/en/products/laptops-and-netbooks/lenovo-g-series-laptops/g50-70-noteboo...

 

Intel : http://support.lenovo.com/us/en/products/laptops-and-netbooks/lenovo-g-series-laptops/g50-70-noteboo...

 

Let me know

 

Thanks

Alaa



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If you find a post helpful and it answers your question, please mark it as an "Accepted Solution"! This will help the rest of the Community with similar issues identify the verified solution and benefit from it.

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Diefer79
What's DOS?
Posts: 3
Registered: ‎06-20-2015
Location: Spain
Views: 9,379
Message 5 of 8

Re: Unable to adjust brightness in my windows 8.1 (G50-70 laptop)

Hello,

 

It worked installing the first driver (Lenovo Energy Management Driver for 64-bit Windows)

 

Thank you very much.

 

Should I install the other drivers?

 

Thank you very much for your attention

 

regards

Retired Support Specialist
Posts: 1,226
Registered: ‎11-18-2012
Location: Egypt
Views: 9,376
Message 6 of 8

Re: Unable to adjust brightness in my windows 8.1 (G50-70 laptop)

That is perfect 

 

No need to install any further applications . Enjoy using you unit Smiley Happy

 

Thanks

Alaa



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rinkutyagi1111
Paper Tape
Posts: 2
Registered: ‎05-18-2017
Location: IN
Views: 4,716
Message 7 of 8

Unable to adjust brightness in my windows 8.1 (G50-80 laptop)

I've noticed that I can not change the brightness of the screen. I can not change or buttons or brightness settings in the Power Options. I move the brightness bar and nothing happens.

Please help me. Thanks

 

My machine model is:

 

Lenovo G50-80

Model: 80E5

 

Fluffy95
Paper Tape
Posts: 3
Registered: ‎02-24-2018
Location: IE
Views: 2,329
Message 8 of 8

Re: Unable to adjust brightness in my windows 8.1 (G50-70 laptop)

I have the same problem.

Unfortunatly installing the drivers didn't help at all. 

Is there anything else that can be done?

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