I was able to solve this problem under xubuntu by removing gnome-power- manager. XFCE has it's own power manger so that does the same job
-- brightness is broken on MSI WIND U100 https://bugs.launchpad.net/bugs/415023 You received this bug notification because you are a member of Kubuntu Bugs, which is subscribed to kdebase-workspace in ubuntu. -- kubuntu-bugs mailing list kubuntu-b...@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/kubuntu-bugs