On Fri, Jan 12, 2018 at 10:20:06AM +0100, Didier Kryn wrote:
>     The brightness is controlled through 3 files in
> /sys/class/backlight/intel_backlight, named actual_brightness, brightness
> and max_brightness.
>
>     The brightness can be controlled by writing to these files. But these
> files do not exist if xfce4-power-manager isn't installed. So it seems I
> need this package (or an equivalent in another DE) to be able to set a
> decent brightness.

Hmmm, are you sure? I have a text only install of devuan Jessie on an
external usb drive (no GUI at all), and these files do exist for me on
that install when I use it on my laptop.

Greg


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