With the Macbook Air, you can take X out of the equation and reproduce the issue directly with the kernel by echoing various values into /sys/class/backlight/mbp_backlight/brightness
With the Nvidia driver active, doing so does nothing just like the brightness keys on the keyboard. Removing the Nvidia driver and rebooting (nomodeset) into the standard vesa xorg setup, both the brightness keys and writing values into the kernel (as above) work again. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/743352 Title: LCD backlight doesn't respond to brightness control keys -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
