This appears to be related to the X intel video module. I've noticed that on boot, the screen dims as the drivers are being loaded, before any Gnome related stuff is introduced.
-- Brightness only works using manual controls https://bugs.launchpad.net/bugs/214440 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-power-manager in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs