On Thu 2017-01-05 10:23:07, Michal Hocko wrote: > Hi, > I have just learned that my Xfce Power Manager cannot manipulate > brightness because I do not have policykit installed on my computer. > There is a reason for that (yeah it depends on systemd which I prefer > not have). > > While this is clearly a problem of the Xfce applet I am wondering why > setting the brightness has to be a privileged operation at all. Is there > any strong reason for it or just a general policy that we do not give > world writable files into sysfs? Well, if you have another user logged in using ssh, and changing _your_ brightness, that will be somehow annoying, right? That's the reason why global settings should be root-only... Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html -- To unsubscribe from this list: send the line "unsubscribe linux-fbdev" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html