Kevin, I can't reproduce this issue on an older dell latitude laptop. When pressing the brightness hardware keys (actually Fn + up/down arrow) the brightness slider moves accordingly, and then moving the slider correctly changes the brightness.
Note that I am running zesty with a locally fixed systemd package (see bug 1661568). I wonder if what you are seeing is a side-effect of the aforementioned systemd issue. My proposal is to try again in a few days, when the fixed systemd package will have landed to zesty (hopefully). If the problem persists we can investigate further. ** Changed in: repowerd (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1660438 Title: display brightness & slider follows hw keys, but brightness does not follow slider unity8 zesty To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1660438/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs