I have the same problem on a Thinkpad W510 (Nvidia Quadro FX 880M), running the latest nvidia binary drivers from the ubuntu repo.
** Tags added: w510 -- Backlight controls on ThinkPad T510 no longer function when using proprietary drivers https://bugs.launchpad.net/bugs/562005 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
