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Thread: Brightness boots up full brightness every new boot up..

  1. #1
    Join Date
    Aug 2013
    Beans
    9

    Brightness boots up full brightness every new boot up..

    Running Ubuntu-12.4 ("UE 3.4") in a Toshiba Satelite notebook (160 gig hd, 2 gig ram)..
    After every boot up I set brightness to lowest setting..
    Every boot up the brightness is at brightest setting..
    Is there a tweak to lock the brightness setting at minimum?..

  2. #2
    Join Date
    Mar 2010
    Location
    India
    Beans
    7,711
    Distro
    Ubuntu 12.04 Precise Pangolin

    Re: Brightness boots up full brightness every new boot up..

    Quote Originally Posted by Linda_Valdeen View Post
    Is there a tweak to lock the brightness setting at minimum?..
    I have added this line in my "/etc/rc.local" file -
    echo 0 > /sys/class/backlight/acpi_video0/brightness
    Your default video device may be different than "acpi_video0" and its pertaining setting value (0) maybe different too. Please check it yourself with -
    Code:
    ls /sys/class/backlight
    .. and the pertaining value in the "brightness" file in the found video device(s).

    Make sure to add the command above the last line (exit 0) in the /etc/rc.local file, as "exit 0" must be its last line.
    Varun
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