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24 Posts

03-09-2010

GB

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W510 Screen Brightness Keys Disabled

2010-03-09, 4:05 AM

Hi,

 

I often hibernate my W510 and some times when I start her up again, the brightness function keys refuse to work. Other function keys seem to work ok. It's a real pain if I'm trying to conserve battery and the brightness is on full (notably it doesn't automatically switch to a lesser brightness either when this fault occurs).

 

Anyone else experience this?

 

Regards

Andy Wu

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72 Posts

10-21-2009

NY

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Re: W510 Screen Brightness Keys Disabled

2010-04-28, 4:29 AM

Hey, I am also now observing this issue.  I thought it was just a fluke at first, but it's now fairly obvious that this happens frequently after coming out of hibernation.  I have tried adjusting it by using Power Management, but adjusting the setting in software doesn't do anything.  I was running Power Manager 3.13 (which came with my laptop), and am currently using version 3.20.  I experienced the problem before and after upgrading the software.

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74 Posts

12-24-2007

US

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Re: W510 Screen Brightness Keys Disabled

2010-04-28, 12:59 PM
I have this issue as well. All the other Function keys work - just not brightness control. I can turn the ThinkLight on and off, I can access the Wireless Radio settings and the Communications Settings. Everything seems to work, save for brightness.
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72 Posts

10-21-2009

NY

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Re: W510 Screen Brightness Keys Disabled

2010-05-03, 13:41 PM

Another thing to note besides the fact that this only affects the brightness controls, is that the controls are affected regardless of whether I am plugged into AC power when I bring my laptop out of hybernation.  Also, rebooting the system doesn't fix the problem.  I have to physically shut off the system and power it back on to resolve the problem.  I don't need to remove the battery, but the system does need to be completely turned off.

 

Does anyone know if the Lenovo techs are aware of this problem?

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24 Posts

03-09-2010

GB

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Re: W510 Screen Brightness Keys Disabled

2010-05-03, 21:07 PM

I haven't reported the issue myself. I have a number of issues that I'd like to talk with them first but the open hours of the support line and the lack of any email support makes it a pain to get in touch with them.

 

I was hoping to see some sort of Lenovo presence on this forum.

 

Regards

Andy Wu

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24 Posts

07-13-2010

New Orleans

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Re: W510 Screen Brightness Keys Disabled

2010-07-14, 5:55 AM

Any new insight into this problem? I just got my w510 and it started. I didnt even have to hibernate to get this problem. It shows on the screen itself as changing but it doesnt actualy change. I also have installed the newest bios which was june 10th i think?

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1 Posts

01-06-2011

Suisse

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Re: W510 Screen Brightness Keys Disabled

2011-01-06, 12:41 PM

I have the same issue :(

 

It really makes hibernation much less useful, because if I have to adjust the screen brightness after de-hibernation then it is necessary to reboot.

 

Ilya

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1 Posts

08-11-2011

New Zealand

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Re: W510 Screen Brightness Keys Disabled

2011-08-11, 9:03 AM

I too have this issue. I managed to get it working again by putting the laptop to sleep then waking up

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