After upgrading to last Kubuntu 13.10 release, I found Fn+Left works correctly. Thanks. With kernels 3.11 and 3.12 also.
** Changed in: linux (Ubuntu) Status: Incomplete => Fix Released -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1171848 Title: [Dell Latitude D830] Fn+Left does not enable ambient light sensor To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1171848/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs