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    "Fn" button + "up" and "down" button to increase,decrease brightness doesn't work anymore ?

    Discussion in 'Windows OS and Software' started by Laptopaddict, Jan 4, 2010.

  1. Laptopaddict

    Laptopaddict Notebook Deity

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    First time I experience this problem, also "Fn" + "left","right" for volume doesn't work anymore...
     
    Laptopaddict, Jan 4, 2010
    #1
  2. ScuderiaConchiglia

    ScuderiaConchiglia NBR Vaio Team Curmudgeon

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    Does it work after you reboot?

    Gary
     
    ScuderiaConchiglia, Jan 4, 2010
    #2
  3. Laptopaddict

    Laptopaddict Notebook Deity

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    I tried that already , no

    Maybe reinstall a driver, which one ?
     
    Laptopaddict, Jan 4, 2010
    #3
  4. ScuderiaConchiglia

    ScuderiaConchiglia NBR Vaio Team Curmudgeon

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    What have you changed recently? I'd suggest a system restore back to a point in time when it was working.

    Gary
     
    ScuderiaConchiglia, Jan 4, 2010
    #4
  5. doctorsrk

    doctorsrk Notebook Geek

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    which laptop you have ?
    Probably you have to reinstall the program which came with the laptop which controls the function button. For example, I have Asus and I had to install ATK program from their website to make function key work.
    Other possibility is that it is not included in start up programs.
     
    doctorsrk, Jan 4, 2010
    #5
  6. Laptopaddict

    Laptopaddict Notebook Deity

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    Samsung X360 Vista

    the graphics driver ?
     
    Laptopaddict, Jan 4, 2010
    #6
  7. swarmer

    swarmer beep beep

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    This functionality is not part of Windows... it's handled by software which came installed on your laptop. See if you can find a Samsung program on your laptop that might handle it. Also, you could go to Samsung's website and try to find the program.
     
    swarmer, Jan 4, 2010
    #7
  8. Alex

    Alex Super Moderator

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    No, not the graphics driver
    Not sure on Samsung's but some manufacturers call the driver you need Hotkeys
    As swarmer stated you need to look for a driver on the Samsung download area for your model

    Alex
     
    Alex, Jan 4, 2010
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  9. swarmer

    swarmer beep beep

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    It might also be a BIOS setting, now that I think about it... check your BIOS.
     
    swarmer, Jan 4, 2010
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  10. beige

    beige Notebook Deity

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    i have the same problem , it just stops responding randomly
     
    beige, Jan 4, 2010
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  11. MGS2392

    MGS2392 NAND Cat!

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    Definitely try looking for software from your manufacturer. Mine didn't work until I installed the HP QuickLaunch software.
     
    MGS2392, Jan 4, 2010
    #11
  12. pixelot

    pixelot Notebook Acolyte

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    I expect it's probably one of the utilities on this download page from Samsung. If you have it installed and set to run at startup, but it's not working properly, you could uninstall it and then reinstall from the download file.

    Also, I think the 'Display Manager' controls the brightness hotkeys and the 'Magic Keyboard' the volume keys, or maybe it's necessary for both to work. At any rate, a small amount of Googling came up with that much.

    You might take a look at this thread.

    Cheers... :cool:
     
    pixelot, Jan 4, 2010
    #12
  13. downloads

    downloads No, Dee Dee, no! Super Moderator

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    I've had this problem on Acer notebook with nVidia GPU and it was actually caused by latest nVidia mobile drivers. Brightness adjusting is part of drivers functionality known as Smart Dimming. Everything works after I reinstalled the old driver. The newest driver not only prevented me from manually adjusting brightness by "Fn+ xx" but also kept fixed brightness (constant level) even with computer running on battery and in spite of brightness settings in power saving profile.
     
    downloads, Jan 4, 2010
    #13