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Fanfold Paper
Posts: 18
Registered: ‎12-16-2012
Location: Maryland
Views: 1,570
Message 1 of 4

Y400 Brightness Problem

So I just got my Y400 for Christmas, and I cannot change the brightness setting using my keyboard's FN up or down commands, the power settings, or the windows 8 sidebar. I can however change the brightness settings in NVIDIA's control panel. Does anyone know how to fix this problem?

Retired Support Specialist
Posts: 293
Registered: ‎02-01-2012
Location: Inda
Views: 1,532
Message 2 of 4

Re: Y400 Brightness Problem



Thanks for the post.


As per your concern you are unable to change the brightness of the screen using the keyboard function keys. To diagnose, I would suggest you to please update the Power Manager software and Graphics driver of your system from the below mentioned web link.


Afterwards, please restart the notebook and check if the issue resolved.




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Bit Torrent
Posts: 3,304
Registered: ‎06-27-2012
Location: India
Views: 1,525
Message 3 of 4

Re: Y400 Brightness Problem

As sameer told, update the intel graphic card driver specifically.
Ishaan Ideapad Y560(i3 330m), Hp Elitebook 8460p!(i5-2520M) Hp Pavilion n208tx(i5-4200u)
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Fanfold Paper
Posts: 18
Registered: ‎12-16-2012
Location: Maryland
Views: 1,501
Message 4 of 4

Re: Y400 Brightness Problem

I dont have an intel graphics.....

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