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3 Posts

12-18-2019

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Re: P1 Gen2 brightness control not working

2020-02-19, 18:08 PM

I "solved" it by not using any Windows Insider builds. Had to reformat but brightness controls are worth it. 

 

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4 Posts

03-14-2020

United States of America

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  • Message 52 of 86

Re:P1 Gen2 brightness control not working

2020-03-14, 23:52 PM

I solved it by installing a previous driver:

https://download.lenovo.com/pccbbs/mobiles/n2odr06w.exe

 

And disable auto updates in ThinkVantage, it immediately wants to update to the new, defect driver again.

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7 Posts

03-27-2020

United States of America

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Re:P1 Gen2 brightness control not working

2020-03-27, 1:17 AM

I received a new P1 Gen 2 today (model 20QTS00W00 and i would say this issue is not fixed yet.  Not sure why it has "solved" at the top of this thread!!!   I did all of the system updates after unpacking the laptop, and then followed all of the advice on this forum and elsewhere to try to fix the brightness problem. I tried going back to previous versions of the intel drivers, I tried downloading the new drivers that this forum says will work outside of Vantage.  No help.   And as someone else mentioned earlier, my system updates in Vantage continue to tell me that I need a new intel graphics driver, even though it says that I have successfully already downloaded this driver, over and over!  

 

I have now been on the Lenovo "Software support" help line for 5 hours and 43 minutes.  I suppose it is useless.  I am not comfortable modifying my bios to move to the nvidia card alone or instead, plus that really isn't a solution.  Do I need to return this machine??? but i like the screen and the keyboard, just not at full brightness.  Any advice???  

 

Thanks in advance.... 

And I get it, this is a hard time to expect full support, we are all overwhelmed, stay well, stay home....  

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1 Posts

03-28-2020

United States of America

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Re:P1 Gen2 brightness control not working

2020-03-28, 2:20 AM

I just received my laptop last week and I am having the same issue.

 

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8 Posts

03-27-2020

United States of America

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  • Message 55 of 86

Re:P1 Gen2 brightness control not working

2020-03-31, 23:19 PM

Same I received my p1 gen2, on 3/26 with the same issue.  On hybrid brightness will not adjust, if I switch to discrete, brightness adjusts just fine but the screen does seem slightly dimmer than on hybrid.

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1 Posts

04-01-2020

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  • Message 56 of 86

Re:P1 Gen2 brightness control not working

2020-04-01, 23:17 PM

Received P1 Gen2 today, install every update recommoneded, and met the same thing as this:

  1. Can not change brightness.
  2. finding new update for Intel Graphics Driver again and again.

 

Fixed??

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1 Posts

04-03-2020

United States of America

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  • Message 57 of 86

Re:P1 Gen2 brightness control not working

2020-04-03, 15:05 PM

Same here... Received on 4.1, update BIOS and all drivers. Problem hasn't been solved. 

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7250 Posts

10-29-2009

United States of America

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  • Message 58 of 86

Re:P1 Gen2 brightness control not working

2020-04-03, 15:25 PM

This problem was definitely solved by a new video driver at one point late last year.  I'm not sure what happened since then to make this problem come back.  I'm asking the product team to take a look.  It could be a Windows Update or a BIOS update that made it stop working, but at this point, I don't know for sure.  Sorry for this trouble.

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8 Posts

03-27-2020

United States of America

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  • Message 59 of 86

Re:P1 Gen2 brightness control not working

2020-04-05, 15:57 PM
I just got this fixed. I had to rollback to 2 drivers ago.
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6 Posts

07-25-2016

United States of America

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  • Message 60 of 86

Re:P1 Gen2 brightness control not working

2020-04-06, 12:50 PM
Would you mind posting a link to which specific driver solved the problem for you? Thanks!
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