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3 Posts

07-31-2015

gp, tx

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Fix brightness on IdeaPad p400 after Windows 10 update

2015-07-31, 5:06 AM

I recently updated to Windows 10 on my ideapad p400 but the brightness buttons (f11+f12) are not working, even when i go into settings and adjust the brightness nothing changes. This happened the last windows update but there was an answer. Please help, my eyes hurt!

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1 Posts

08-10-2015

Ecuador

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Re: Fix brightness on IdeaPad p400 after Windows 10 update

2015-08-13, 3:38 AM

Hi, I used this link  http://support.lenovo.com/us/en/downloads/ds031547 and for the moment the problem is solved.

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1 Posts

07-31-2015

India

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Re: Fix brightness on IdeaPad p400 after Windows 10 update

2015-07-31, 15:54 PM

I too had the same problem.. just go to display settings and update the driver software

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3 Posts

07-31-2015

gp, tx

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Re: Fix brightness on IdeaPad p400 after Windows 10 update

2015-07-31, 16:10 PM

I clicked around and it said i had the latest version. I clicked on "roll back driver" to the previous setting and the brightness setting worked, but when i updated again it stayed at what ever brightness level i have when i updated and wouldn't let me change it. I guess I'll have to stay at the previous settings..

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4 Posts

08-07-2015

United States

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Re: Fix brightness on IdeaPad p400 after Windows 10 update

2015-08-07, 21:41 PM

I'm having the same issue. The driver is up to date and I don't have the option to go back to the previous driver. 

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1 Posts

08-10-2015

Ecuador

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Re: Fix brightness on IdeaPad p400 after Windows 10 update

2015-08-13, 3:38 AM

Hi, I used this link  http://support.lenovo.com/us/en/downloads/ds031547 and for the moment the problem is solved.

0 person found this solution to be helpful.

This helped me too

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1 Posts

01-09-2016

USA

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Re: Fix brightness on IdeaPad p400 after Windows 10 update

2016-01-09, 14:41 PM

Hello Jl_Inv,

 

The file download and update worked perfectly.  I did not have the 'new driver install' go into the original folder.

However, the screen is back to being bright again.  

 

Thanks very much!!!

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2494 Posts

05-01-2010

United States of America

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Re: Fix brightness on IdeaPad p400 after Windows 10 update

2016-01-10, 2:55 AM

Thank you for the feedback, reshea1950.






Microsoft MVP Consumer Security 2006-2016 / Windows Insider MVP 2016-Present
I am not employed by Microsoft or Lenovo.

Using Browser Search to Find Your Answers In Lenovo and Moto Community
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3 Posts

01-26-2016

Outside Philly

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Re: Fix brightness on IdeaPad p400 after Windows 10 update

2016-01-26, 1:42 AM
after moving to WIN 10 from 8.1 I had the same problem on my P400 touch. your link solved the issue. with two files to choose from, I 1st chose the 32 bit. wrong one. I then downloaded & installed the 64 bit version. Unit now works fine. Thank you
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2494 Posts

05-01-2010

United States of America

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Re: Fix brightness on IdeaPad p400 after Windows 10 update

2016-01-26, 1:53 AM





Microsoft MVP Consumer Security 2006-2016 / Windows Insider MVP 2016-Present
I am not employed by Microsoft or Lenovo.

Using Browser Search to Find Your Answers In Lenovo and Moto Community
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2494 Posts

05-01-2010

United States of America

12732 Signins

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  • Message 10 of 10

Re: Fix brightness on IdeaPad p400 after Windows 10 update

2016-01-26, 2:05 AM

Thank you for the feedback, Joebur.  I checked the solution for you. :smileyhappy:






Microsoft MVP Consumer Security 2006-2016 / Windows Insider MVP 2016-Present
I am not employed by Microsoft or Lenovo.

Using Browser Search to Find Your Answers In Lenovo and Moto Community
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