Can't adjust screen brightness on Macbook Pro 10,1 Ubuntu 13.10

Posted by ben101 on Ask Ubuntu See other posts from Ask Ubuntu or by ben101
Published on 2013-11-04T07:58:43Z Indexed on 2013/11/12 22:04 UTC
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13.10

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brightness

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macbook-pro

I recently installed Ubuntu on my retina Macbook Pro (following this great guide: http://cberner.com/2013/03/01/installing-ubuntu-13-04-on-macbook-pro-retina/)

Everything works fine so far however the screen brightness / backlight cannot be adjusted neither by using the assigned key nor by any other means. I know, I'm not the first to address this problem, but all the suggested solutions I found so far did not work for me. I unsuccessfully tried the following:

Including Option "RegistryDwords" "EnableBrightnessControl=1" in the Devices-Section of /etc/X11/xorg.conf
the application xbacklight
I also haven't found any file such as mbp_backlight or apple_backlight on my system which probably would be a starting point

I'm using the Nvidia-driver. (BTW: With the nouveau-driver, the keys to adjust the brightness work. However, with the nouveau driver Ubuntu does not resume from suspend mode)

Any suggestions what I can do? Thanks!

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