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Retired Support Specialist
Posts: 2,826
Registered: ‎08-01-2013
Location: Bangalore
Views: 2,489
Message 31 of 65

Re: Can't adjust brightness in Windows 8.1 for IdeaPad Z400

Hi Oreotumalad,

 

I’m glad to hear that the issue is resolved and this will not affect any performance of the computer, please feel free to post in Lenovo Community Forums if you have any further queries!

 

Cheers!Smiley Happy

 

Shiva Kumar



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PersianPrince
Paper Tape
Posts: 1
Registered: ‎05-07-2014
Location: world
Views: 2,415
Message 32 of 65

Re: Can't adjust brightness in Windows 8.1 for IdeaPad Z400

Please help me i am not able to adjust the brightness in my z400 laptop, my laptop screen light is fixed att the brightest. i followed all the steps which have been given by shiv_k.

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Retired Support Specialist
Posts: 2,826
Registered: ‎08-01-2013
Location: Bangalore
Views: 2,394
Message 33 of 65

Re: Can't adjust brightness in Windows 8.1 for IdeaPad Z400

Hi PersianPrince,

 

Welcome to Lenovo Community!

 

I’m sorry to hear that Brightness is not working as expected in your computer, please let me know the OS (Operating System) installed in your computer.

 

Hope to hear back soon

 

Best Regards

Shiva Kumar



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Jpec13
Paper Tape
Posts: 2
Registered: ‎05-14-2014
Views: 2,372
Message 34 of 65

Re: Can't adjust brightness in Windows 8.1 for IdeaPad Z400

My idea pad s410p got the same problem too. I just reinstalled the lenovo power management and the problem was automatically fixed. Thanks a lot!
Retired Support Specialist
Posts: 2,826
Registered: ‎08-01-2013
Location: Bangalore
Views: 2,362
Message 35 of 65

Re: Can't adjust brightness in Windows 8.1 for IdeaPad Z400

Hi Jpec13,

 

Welcome to Lenovo Community!

 

I’m glad to hear that the issue got resolved after re-installing the LEM (Lenovo Energy Management) in the computer. Please feel free to post in Lenovo Community Forums if you have any further queries!

 

Cheers!

 

Best Regards

Shiva Kumar



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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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oreotumalad
Paper Tape
Posts: 7
Registered: ‎04-15-2014
Location: Philippines
Views: 2,337
Message 36 of 65

my IdeaPad Z400 is showing an error "failure to configure updates. reverting changes"

My laptop suddenly gave me the aboce error message when i opened it and it keeps on rebooting and going back to the same error. What do i do????im panicking now!!!!!!!!

Retired Support Specialist
Posts: 2,826
Registered: ‎08-01-2013
Location: Bangalore
Views: 2,311
Message 37 of 65

Re: my IdeaPad Z400 is showing an error "failure to configure updates. reverting changes"

Hi Oreotumalad,

 

Welcome to Lenovo Community!

 

I’m sorry to hear about the situation, please let me know the exact error message displayed on the computer screen and the OS (Operating System) installed. So that I can provide you exact  troubleshooting steps to resolve this issue.

 

Hope to hear back soon

 

Best Regards

Shiva Kumar



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Jpec13
Paper Tape
Posts: 2
Registered: ‎05-14-2014
Views: 2,283
Message 38 of 65

Re: Can't adjust brightness in Windows 8.1 for IdeaPad Z400

Hi! Can you help me again regarding the brightness issue.  2 weeks ago I got the issue solved. But awhile ago the problem with the brightness reoccured again. Last time I just re-installed  the LEM update but I didn't re-installed the NVIDIA and Intel Driver updates. Should I re-install the driver updates too? And by the way my laptop is running on windows 8.1. 

Retired Support Specialist
Posts: 2,826
Registered: ‎08-01-2013
Location: Bangalore
Views: 2,271
Message 39 of 65

Re: Can't adjust brightness in Windows 8.1 for IdeaPad Z400

Hi Jpec13,

 

The brightness and other display related feature depends on the Graphic Driver, hence these drivers should also be re-install with the LEM (Lenovo Energy Management) to get the issue resolve completely. Please let me know the findings after re-installing the Graphic drivers as well.

 

Hope to hear back soon

 

Best Regards

Shiva Kumar



Did someone help you today? Press the star on the left to thank them with a Kudo!
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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nijikos
What's DOS?
Posts: 2
Registered: ‎05-29-2014
Location: indonesia
Views: 2,227
Message 40 of 65

I Still Cant adjust the screen birghtness :(

Hi, i still have this same problem. i have a Z500 and one day it had an automatic windows update and after that i cant adjust my brightmenss. all i did was system restore and then it went back to normal. but i guess it keeps on windows updated whenever possible everytime i am shutting it down or resarting it so now i cant adjust my brightness anymore. I So i went to a configuration website to check any driver that havnet been updated or installed and i have updated all the intel and nvidia driver there is. I also updated my loenovo energy management too. but in the end I stil cant adjust the brightness of my screen. is there other things thaat i can do?

 

/thank you so Much Smiley Happy

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