I have the same problem with a first generation Macbook. Disabling KMS makes brightness work again.
Changing the brightness with ACPI doesn't work, the /sys/class/backlight directory is empty. -- brightness no more working on karmic (KMS) https://bugs.launchpad.net/bugs/397617 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
