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6 Posts

03-07-2013

slovakia

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  • Location: slovakia
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  • Message 1 of 4

Sudden brightness change and brightness hotkeys unresponsive

2013-03-07, 21:38 PM

Hello,

 

A week ago I got lenovo Ideapad z5OO.Today the screen brightness suddenly got decreased and everything is barely visible.No option in power management,hotkeys,vga control panels fixes it.The hotkey's brightess bar is working properly but the brightness itself remains unaffected.Any ideas what could it be?Could the display back-light be broken somehow?Thank you in advance.

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353 Posts

05-29-2012

UK, England

1847 Signins

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  • Posts: 353
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  • Location: UK, England
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  • Message 2 of 4

Re: Sudden brightness change and brightness hotkeys unresponsive

2013-03-07, 22:03 PM

Have you installed a non lenovo video driver, as you can break the brighness control by installing an non lenovo video driver.

 

If you have remove a install the lenovo one.

 

John.

Win7 Lenovo Ideapad Z580 i5-3210m HD4000 Win7 x64 8gb 1600MHz Samsung 830 256GB SSD
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6 Posts

03-07-2013

slovakia

7 Signins

62 Page Views

  • Posts: 6
  • Registered: ‎03-07-2013
  • Location: slovakia
  • Views: 62
  • Message 3 of 4

Re: Sudden brightness change and brightness hotkeys unresponsive

2013-03-11, 13:47 PM

Thank you Tinderbox! I had lost hope thinking that the panel was problematic but I restored my system and it got fixed.My only concern is that it happened 5-6 days after I had installed the new video drivers so my question is why then?Plus they were also from the official Nvidia site...I dont know...It basically made me worry more than it would have if it was just some hardware problem... :P Anyway...Small ,shy,backed-up steps now and we'll see.Thnx once more!:)

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6 Posts

03-07-2013

slovakia

7 Signins

62 Page Views

  • Posts: 6
  • Registered: ‎03-07-2013
  • Location: slovakia
  • Views: 62
  • Message 4 of 4

Re: Sudden brightness change and brightness hotkeys unresponsive

2013-03-11, 18:45 PM

And here we go again...Afrer restoration,almost all drivers installed(downloaded from lenovo site) and while I was about to back up(and that's the irony) I just pressed the keyboard brightness button and once again,the sceen was dimmed(there is some light coming out from it,but at a minumum degree) and NOTHING,from what I've tried,fixes it.I dont know what to do...Pretty dissapointed! Anyone any ideas before getting it for service?

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