rvgsd, I had the same issue too after updating but had to resort to reinstalling power management via Kamal's PPA and the Linux packages. See what kernel version you have by typing uname -a in a Terminal.
-- Screen brightness control fails on Dell Studio 1558 https://bugs.launchpad.net/bugs/568611 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
