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sneijder927
Paper Tape
Posts: 2
Registered: ‎08-04-2014
Location: Germany
Views: 968
Message 1 of 4

Ideapad Z500 Luminosity Problem after updating bios

Hi, I have an Ideapad Z500 with an W8.1 installed on it. I updated the bios to the last version but after that I can not control the luminosity level anymore. When I try to do it pressing the Hotkey it trurns to the lowest level of luminosity and I can only fix it by pressing the hotfix key when the laptop starts. I can not return to the old bios version. What shall I do? can anyone help please. Thank you

GuruAid-CS
802.11n
Posts: 127
Registered: ‎02-05-2014
Location: United States
Views: 920
Message 2 of 4

Re: Ideapad Z500 Luminosity Problem after updating bios

You can update or reinstall the display driver and check the luminosity is same as before.

Steps to uninstall display driver
1. Open Device Manager
2. Go to Display Adapters, right click, choose Uninstall, and then restart your computer.

 

Download and install latest video drivers from below link given
http://support.lenovo.com/en_US/downloads/detail.page?DocID=DS032587

sneijder927
Paper Tape
Posts: 2
Registered: ‎08-04-2014
Location: Germany
Views: 910
Message 3 of 4

Re: Ideapad Z500 Luminosity Problem after updating bios

Thanks a lot Smiley Very Happy

lisabriggs
Paper Tape
Posts: 1
Registered: ‎03-13-2015
Location: uk
Views: 524
Message 4 of 4

Re: Ideapad Z500 Luminosity Problem after updating bios

Hello

I have the same problem with my Z500 but obviously it's nearly a year later than your origial post. I have tried the steps recommended in this post but when I right click, it opens two graphics cards. Please, any help will be most appreciated.!


@GuruAid-CS wrote:

You can update or reinstall the display driver and check the luminosity is same as before.

Steps to uninstall display driver
1. Open Device Manager
2. Go to Display Adapters, right click, choose Uninstall, and then restart your computer.

 

Download and install latest video drivers from below link given
http://support.lenovo.com/en_US/downloads/detail.page?DocID=DS032587


 

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