I noticed the ibook getting really warm during compiles, and a quick search showed that I needed to load a module to properly monitor the temperature and thus start the fan. Sure enough as soon as I did modprobe therm_adt746x the fan started up. I made sure to add this to the /etc/modules

This also provides /sys/devices/temperatures/sensor1_tempature (and sensor2_temperature) which were at 60 when I first modprobe'd the module but quickly dropped.

posted at: 22:33 | path: /debian | permanent link to this entry