Perhaps this bug is related? I have trouble with g-p-m, brightness applet, and xbacklight on my HP notebook. https://bugs.launchpad.net/ubuntu/+bug/178818
-- Screen brightness resets to default (maximum) on idle with AC plugged in https://bugs.launchpad.net/bugs/137598 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs