Could you please try the workaround from bug #592592? It might help. Thank you.
** Changed in: gnome-power-manager (Ubuntu)
Status: New => Incomplete
--
Can`t adjust screen brightness with the brightness applet or keyboard hotkeys
https://bugs.launchpad.net/bugs/578818
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
--
ubuntu-bugs mailing list
[email protected]
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
