2013/1/3 Timothy Pearson <kb9vqf@...>:
> I want to switch to kpowersave-nohal for R14.0.0.  The biggest problem
> with doing so is that I don't know of any way to use udev to set
> permissions on the various control files in the /proc filesystem; this
> would be needed for a normal user to be able to control CPU frequency
> scaling, display brightness, etc.
>
> Tim

For brightness control you can use X API and a standalone setuided
helper as a fall-back implementation. It's so in kde4 for now AFAIK.
I don't know what about frequency scaling... off coarse it can be
solved with a setuided handler as well but it's seems quite ugly for
me...