Ubuntu
xserver-xorg-video-intel package

  1. Bug #397617
  2. Comment #120

Comment 120 for bug 397617

Revision history for this message
Benoit Garret (benoit.garret) wrote :

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.