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Thread: 13.04 - Backlight Display Brightness Doesn't Change (Fn + Left/Right Keys)

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  1. #1
    Join Date
    May 2013
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    13.04 - Backlight Display Brightness Doesn't Change (Fn + Left/Right Keys)

    Hi, new forum poster here. I can't adjust the backlight brightness using the function + left/right keys on my Acer laptop. In previous versions of Ubuntu (12.04, 12.10), this was fixed by editing /etc/default/grub and adding

    "acpi_backlight=vendor"
    to
    "GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
    and then
    "sudo update-grub"

    This no longer seems to work in 13.04. What should I do? Thanks
    Last edited by 4Sci; June 19th, 2013 at 06:23 AM.

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