Fn+F4, Fn+F5 keys not working, unable to adjust display resolutions

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Fn+F4, Fn+F5 keys not working, unable to adjust display resolutions

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The Fn+F4 and Fn+F5 keys (to adjust brightness) is not working in my laptop. It was working perfectly fine till yesterday.
But then, I reinstalled Windows7 due to some software issues, & I'm having this problem now.
Not only this function key issues, but also, I'm unable to adjust my display resolutions.

Somebody here, PLEASE HELP!!


My laptop - Dell Vostro 1550
OS - Windows 7 (64bit)
Verified Answer
  • Download and install Quickset application here:-

    http://www.dell.com/support/drivers/uk/en/ukdhs1/DriverDetails/Product/vostro-1550?driverId=5PF9V&osCode=W764&fileId=2731102123&languageCode=EN&categoryId=AP#

    Download and reinstall Video Driver here:-

    http://www.dell.com/support/drivers/uk/en/ukdhs1/DriverDetails/Product/vostro-1550?driverId=J99GD&osCode=W764&fileId=2953554456&languageCode=EN&categoryId=VI#

    (copy & paste link into your browser address bar if your browser doesn't automatically redirect you)

    Paul

  • Hi 21seenu,

    I would like to know if you have installed all the drivers after reinstalling Windows 7.

    For the mentioned key combinations to work, Dell Quickset has to be installed. Refer the following link for the Vostro 1550 drivers page: http://dell.to/10LAAUJ

    Select the operating system as Windows 7. Download and install Dell Quickset that is listed under the category Applications.

    Regarding the issue with display resolution, ensure that the graphics drivers are installed. You may refer the following link that has instructions to install drivers in correct order after reinstalling operating system: http://dell.to/Ynnsnr

    Please post the results.

    Thanks & Regards
    Kalyan S
    #iworkfordell

    To know more about Dell Product Support, Drivers & Downloads, Order & Dispatch status -> choose your region US; India. For Dell support videos click Here.

  • I installed the "Quickset" driver yesterday, but it din't solve my problem. I'm still unable to adjust my brightness using the function keys.

    Regarding the display resolution, right now the "Standard VGA Graphics Adapter" is the Display Adapter installed in my laptop. Should I uninstall it and install some other Display Adapter?

  • All the problems are solved now! I uninstalled the video driver and installed one that was suggested to me. Now everything is working perfectly fine :)

    Thanks a lot for your help, Paul and Kalyan S. :) You both really helped me! :)

All Replies
  • Download and install Quickset application here:-

    http://www.dell.com/support/drivers/uk/en/ukdhs1/DriverDetails/Product/vostro-1550?driverId=5PF9V&osCode=W764&fileId=2731102123&languageCode=EN&categoryId=AP#

    Download and reinstall Video Driver here:-

    http://www.dell.com/support/drivers/uk/en/ukdhs1/DriverDetails/Product/vostro-1550?driverId=J99GD&osCode=W764&fileId=2953554456&languageCode=EN&categoryId=VI#

    (copy & paste link into your browser address bar if your browser doesn't automatically redirect you)

    Paul

  • Hi 21seenu,

    I would like to know if you have installed all the drivers after reinstalling Windows 7.

    For the mentioned key combinations to work, Dell Quickset has to be installed. Refer the following link for the Vostro 1550 drivers page: http://dell.to/10LAAUJ

    Select the operating system as Windows 7. Download and install Dell Quickset that is listed under the category Applications.

    Regarding the issue with display resolution, ensure that the graphics drivers are installed. You may refer the following link that has instructions to install drivers in correct order after reinstalling operating system: http://dell.to/Ynnsnr

    Please post the results.

    Thanks & Regards
    Kalyan S
    #iworkfordell

    To know more about Dell Product Support, Drivers & Downloads, Order & Dispatch status -> choose your region US; India. For Dell support videos click Here.

  • I installed the "Quickset" driver yesterday, but it din't solve my problem. I'm still unable to adjust my brightness using the function keys.

    Regarding the display resolution, right now the "Standard VGA Graphics Adapter" is the Display Adapter installed in my laptop. Should I uninstall it and install some other Display Adapter?

  • All the problems are solved now! I uninstalled the video driver and installed one that was suggested to me. Now everything is working perfectly fine :)

    Thanks a lot for your help, Paul and Kalyan S. :) You both really helped me! :)