How to set the laptop screen brightness programatically?

Posted by zls on Super User See other posts from Super User or by zls
Published on 2012-04-08T11:22:03Z Indexed on 2012/04/08 11:34 UTC
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Filed under:

linux

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ubuntu-11.10

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brightness

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laptop-display

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openbox

I'm currently migrating to openbox without gnome session. In unity i can use the vendor keys to set the screen brightness, but in openbox I'm on my own.

/sys/class/backlight/acpi_video0/brightness works fine, the problem is that I need sudo to set the brightness and that wouldn't work with keyboard mappings.
xbacklight -get/set doesn't do or output anything.
I don't really want to use xrandr --brightness.

Are there any other options or a way to fix the problems with xbacklight or acpi_video0 ?

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