Making the brightness keys work on a VAIO VGN-FE31H

After installing Windows XP on the VGN-FE31H, the screen brightness keys (Fn-F5 and Fn-F6) no longer work. To make them work again you need to install some of the utilities that ship with the laptop, which are also available in the download from the Sony web site.

The three utilities are:

  1. Utils Installer 1 SonyUtils DLL
  2. Utils Installer 2 Sony Shared Library (this one needs a reboot)
  3. Utils Installer VAIO Event Service

The “VAIO Event Service” needs to be running for the keys to work.

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2 Responses to Making the brightness keys work on a VAIO VGN-FE31H

  1. frederick jones says:

    I have the same problem on a Vaio vgn NS20E I have tried to download the above updates but I think my computer knowledge is insufficient to correct the problem .
    The downloads are present on my laptop but I do not know why the fault still persists.
    I am wondering if I have to do anything with these updates , ie do I have to run them
    and ,if so ,how do I do this . ?Any help will be really appreciated .

    • Richard says:

      Sorry, but I don’t know anything about the VGN-NS20E.

      Are you saying that you’ve got a copy of That’s specific to FE3 VAIOs, so probably wouldn’t work with your VGN-NS20E. There’s probably something suitable for your laptop on the VAIO web site.

      Secondly, you do actually need to the run the installers for these utilities; just having the file on your hard disk will do nothing.

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