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Thread: Fn key for adjusting brightness

  1. #1
    Join Date
    Mar 2013
    Location
    Czech Republic
    Beans
    188
    Distro
    Xubuntu 14.04 Trusty Tahr

    Fn key for adjusting brightness

    Hi, I'm having problem with adjusting brightness in my netbook Asus X201E-KX006H with Xubuntu 12.10. I can only do that by typing in terminal:
    Code:
    xrandr --output LVDS1 --brightness [e.g.] 0.6
    But when I try to control them via fn + F5/F6 keys.. It does not work. I've already tried copying these two files: www.ubuntugeek.com/images/video_brightnessup.sh and http://www.ubuntugeek.com/images/vid...ghtnessdown.sh into /etc/acpi/, but id did not worket as well. Also I've noticed, there are no brightness built-in controls (with some GUI).
    Also, this is my output for xrandr command:
    Code:
    vilem@vilix-X201EP:~$ xrandr
    Screen 0: minimum 320 x 200, current 1366 x 768, maximum 8192 x 8192
    LVDS1 connected 1366x768+0+0 (normal left inverted right x axis y axis) 256mm x 144mm
       1366x768       60.0*+
       1360x768       59.8     60.0  
       1280x768       60.0  
       1024x768       60.0  
       800x600        60.3     56.2  
       640x480        59.9  
    VGA1 disconnected (normal left inverted right x axis y axis)
    HDMI1 disconnected (normal left inverted right x axis y axis)
    DP1 disconnected (normal left inverted right x axis y axis)
    Thank you, for every help. (If any)
    Last edited by ViliX64; March 10th, 2013 at 09:04 AM.

  2. #2
    Join Date
    Jun 2005
    Location
    Toronto, Canada
    Beans
    Hidden!
    Distro
    Xubuntu 16.04 Xenial Xerus

    Re: Fn key for adjusting brightness

    Try the acpi_osi= kernel parameter. Have a look at the "Kernel Boot Paramters" link in my signature for information on how to test it and implement it permanently if it works.

  3. #3
    Join Date
    Mar 2013
    Location
    Czech Republic
    Beans
    188
    Distro
    Xubuntu 14.04 Trusty Tahr

    Thumbs up Re: Fn key for adjusting brightness

    Thank you, I will try that. In the meantime, I have found a small ulity for adjustining brightness in the top bar..

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