Brightness control on an iMac G3 under Linux

I recall Linux/PPC kernel developer Benjamin Herrenschmidt saying ages ago that it would technically be trivial to write a tool that accesses the Open Firmware device tree to adjust the iMac's built-in monitor's features (brightness, contrast, geometry, etc.). I'm wondering if anybody ever coded such a tool? Otherwise, would anyone be willing to study the Darwin source code and port it to Linux?

2 kommenttia:

Anonyymi kirjoitti...

there are some utilities for getting and setting the NVRAM variables. this discussion may help you http://ubuntuforums.org/showthread.php?t=96379

stratus kirjoitti...

Doesn't pbbutonsd works with iMac G3? It works in my ibook g4, btw. I've asked joeyh to add it in d-i laptop (ppc only) task. ;)