> > The error message won't appear if your user has access to the pmu, which is > > the > > case on my system. But that's ofcourse wrong to do by default. > > What do you respond to Christoph's critic, which was if i remember well : > > "no unaudited gnome app should have such direct access to my hardware". > > And the evident unsecurity of this process ?
There's not much you can do about that - remember that access to /dev/pmu means the console user (if you restrict access by means of some console group) can result in PMU communications hiccup, and when the PMU finds the host has borked the communications, it will shut down power after some timeout, no questions asked. I often find the clock reset to 1904 after such a reset, boot variables cleared, and so on. > I hear that a consensus seems to be forming up that pbuttonsd offer this same > functionality, and thus acme doesn't really need to be doing it, and i am much That's one option. And fblevel from powerpc-utils could be installed suid root and used by acme to control brightness, without need for user level access to /dev/pmu, for those who don't wish to install pbbuttonsd. (The alternative, for acme to set the effective user ID to root before opening the PMU, is perhaps too unsafe to consider). Michael