I get the same problem on my Asus v6j. Whenever I open up and then close powermanager, the brighness is lowered, although both the battery and AC power setting in powermanager are on 100%. This wasn't happening with an earlier version of powermanager.
-- [edgy] guidance sets brightness to 60-70% https://launchpad.net/bugs/61330 -- kubuntu-bugs mailing list kubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/kubuntu-bugs