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[Jim Rorie <jimrorie@xxxxxxxxxxx>]

I don't know if this is relevant but when I run:

# echo 255 >
/sys/devices/platform/applesmc.768/leds/smc::kbd_backlight/brightness

I get permission denied.  However, I can run:

# echo 255 | sudo tee -a /sys/class/leds/smc::kbd_backlight/brightness

..from the intrepid docs and it works flawlessly.

-- 
[Jaunty] MacBook 5.1 keyboard backlight not supported
https://bugs.launchpad.net/bugs/337945
You received this bug notification because you are a member of Mactel
Support, which is the registrant for Mactel Support.

Status in Hardware Abstraction Layer (HAL): New
Status in Mactel Support: New
Status in “linux” source package in Ubuntu: New

Bug description:
The keyboard backlight on the MacBook 5.1 is not supported as of Jaunty (Ubuntu 9.04) Alpha 5. This is supported in Intrepid (Ubuntu 8.10) by the Mactel PPA packages hal-applesmc, hid-dkms, and possibly nvidia-bl-dkms, though I installed the nvidia-bl-dkms package for Jaunty.