I have the same problem on a Lenovo Y400; I have tried several combinations of acpi_osi and acpi_backlight without success
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1127729 Title: Brightness keys not working in Lenovo Y500 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1127729/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
