The closest enablement bug that I can find is bug 1180284, but it says the hotkeys doesn't work only _sometimes_, and from the bug description it looks like a BIOS bug to me, which we should have found this issue during enablement.
** Changed in: linux (Ubuntu) Assignee: Anthony Wong (anthonywong) => Alex Hung (alexhung) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1250764 Title: [Dell Latitude E6440] Unable to adjust brightness on Precise To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1250764/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs