Having reported 82502 describing a similar issue, I'll provide another lshal in case it's useful
** Attachment added: "Another lshal" http://librarian.launchpad.net/6035441/lshal.txt -- Cannot get laptop panel brightness https://launchpad.net/bugs/81339 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
