Sean, could you replace /usr/share/hal/fdi/policy/10osvendor/10-laptop- panel-mgmt-policy.fdi with attached file, do "/etc/dbus-1/event.d/20hal restart" (or reboot your computer) and check if brightness control works?
** Attachment added: "10-laptop-panel-mgmt-policy.fdi fo TP T60" http://librarian.launchpad.net/4686672/10-laptop-panel-mgmt-policy.fdi -- Screen brightness buttons don't work properly on Thinkpad T60 https://launchpad.net/bugs/61184 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
