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Thread: Brightness and Sound Not Working Lenovo R61i

  1. #1
    Join Date
    Oct 2007

    Brightness and Sound Not Working Lenovo R61i

    Going from the default 8.1 CD installation to the fully updated version, my brightness keys (Fn+Home for brightness up) and (Fn+End for brightness down) stopped functioning.

    The brightness of the screen just stays at a constant level no matter how I try to adjust it. The laptop detects if the keys are being pressed, in fact when I try to press it, it adjusts the brightness slider that pops up. It's just that this has no effect on the actual brightness.

    The brightness applet that you can add to the panel also doesn't work.

    I've reinstalled Ubuntu 8.1 several times on my laptop and every time I upgrade, it always has this problem.

    Any suggestions?

    The sound works, actually. The sound not working was another issue that I soon fixed.

  2. #2
    Join Date
    Jun 2006
    The Netherlands

    Re: Brightness and Sound Not Working Lenovo R61i

    I'm facing the brightness issue using Intrepid on a ThinkPad X61t. See this search on Launchpad for a number of relevant issues, this report in particular might interest you.

    The workaround I've been using is having the following command execute on startup (though I'm trying this next):

    xrandr --output LVDS --set BACKLIGHT_CONTROL native
    Last edited by Brucevdk; April 17th, 2009 at 08:41 PM.


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