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    HELP: brightness control not working

    Discussion in 'Hardware Components and Aftermarket Upgrades' started by bubba_000, Nov 12, 2007.

  1. bubba_000

    bubba_000 Notebook Evangelist

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    HI

    I have a packard bell mv86-003 laptop. I just updated the BIOS to the latest(2.03) version and the key combinations that control the brightness of the screen(Fn+F6/F7) don't work in windows: the brightness is locked at max. When i press fn+f7(which would normally increase it ) i get no beep. But when i press fn+f6(decrease), the beep is played, but nothing else happens. The strange thing is that when i enter the bios setup program it works fine, the problem only arising when i'm in the os. I'm sure it's not a driver problem because it worked before even when no driver was installed, and i tried both the official catalyst and the omega drivers, but to no avail.

    Is there anything i can do, apart from downgrading the BIOS? And if i have to, do i have to also flash the older KBC bios aswell, or just the system BIOS? Will there be any problems if i keep the newer kbc bios?

    PLEASE help me quickly because i can't use my laptop: the screen is so bright that it hurts my eyes!
     
    bubba_000, Nov 12, 2007
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  2. soledadaztec18

    soledadaztec18 Notebook Consultant

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    it might be a utility issue.. try searching your original cds for utilities or applications that could help with this..
     
    soledadaztec18, Nov 12, 2007
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  3. bubba_000

    bubba_000 Notebook Evangelist

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    There is no utility for this. It's clearly bios related, since it works in vista with no drivers installed. Oh well, i'll just downgrade the bios
     
    bubba_000, Nov 13, 2007
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