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04-11-2011

Arizona

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Z560 Brightness levels

2011-04-11, 5:48 AM

I was searching through the forums and found some threads on how to lower the brightness on my Z560.  Everytime I use the FN + Up or Down arrows the brightness bar does not move.  

 

I even tried going into Windows control pannel and the brightness sliders on there do not work at all.  I tried reinstalling the Lenovo software as well and still no effect.  The only thing I can do at this time is lower it through the Nvidia settings but that just darkens the screen. Any advice?

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13866 Posts

12-07-2009

CZ

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Re: Z560 Brightness levels

2011-04-11, 10:30 AM
re-install power management, and try again.


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5 Posts

04-11-2011

Arizona

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Re: Z560 Brightness levels

2011-04-12, 2:14 AM

I already tried reinstalling the enerygy management.  I did it again just for giggles and absolutely nothing happened.  Brightness controls are still not working.

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13866 Posts

12-07-2009

CZ

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Re: Z560 Brightness levels

2011-04-12, 9:25 AM
try this way : un-install power management, restart your computer and re-install it again.
http://forum.lenovo.com/t5/IdeaPad-Y-U-B-V-and-Z-series/Y560-Energy-Management-Brightness-Dim-controls-don-t-work/m-p/300978#M28398


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2143 Posts

07-14-2009

USA

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  • Message 5 of 13

Re: Z560 Brightness levels

2011-04-12, 13:30 PM
Are you using the Nvidia driver from Nvidia, or from Lenovo.
May make a difference.
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5 Posts

04-11-2011

Arizona

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  • Message 6 of 13

Re: Z560 Brightness levels

2011-04-29, 4:03 AM

Sorry about the delayed response, been busy the past month.  I just recently reinstalled the operating system and the brightness controls worked.

 

However... after I updated the drivers from nvidias website they stopped working again.  It even left the brightness at the setting I had it at before I updated.  So I rolled back the driver and the controls work again.  Is there any solution for this?  Reinstalling the power management application does nothing and I dont want to use an outdated graphics driver simply for the brightness function.

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13866 Posts

12-07-2009

CZ

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Re: Z560 Brightness levels

2011-04-29, 7:12 AM
have you checked lenovo's driver?
http://consumersupport.lenovo.com/uk/en/DriversDownloads/drivers_list.aspx?CategoryID=37684


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5 Posts

04-11-2011

Arizona

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  • Message 8 of 13

Re: Z560 Brightness levels

2011-04-29, 15:41 PM
The ones on the drivers page are the same version I have installed. Still out of date.
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2 Posts

05-05-2011

Melbourne, Australia

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  • Message 9 of 13

Re: Z560 Brightness levels

2011-05-05, 12:50 PM

I had this problem too on my Z560, and I found that the latest releases of the Nvidia driver do not seem to properly support brightness controls. I found that the last Nvidia release that properly supports brightness adjustment is 260.99.

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13866 Posts

12-07-2009

CZ

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Re: Z560 Brightness levels

2011-08-20, 17:12 PM


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