Public bug reported:
Kernels up to 2.6.30 had all the windfarm modules needed for G4 and G5
iMacs cpufreq and fan control:
/lib/modules/2.6.30-2-powerpc64-smp/kernel/drivers/macintosh/windfarm_core.ko
/lib/modules/2.6.30-2-powerpc64-smp/kernel/drivers/macintosh/windfarm_cpufreq_clamp.ko
/lib/modules/2.6.30-2-powerpc64-smp/kernel/drivers/macintosh/windfarm_lm75_sensor.ko
/lib/modules/2.6.30-2-powerpc64-smp/kernel/drivers/macintosh/windfarm_max6690_sensor.ko
/lib/modules/2.6.30-2-powerpc64-smp/kernel/drivers/macintosh/windfarm_pid.ko
/lib/modules/2.6.30-2-powerpc64-smp/kernel/drivers/macintosh/windfarm_pm112.ko
/lib/modules/2.6.30-2-powerpc64-smp/kernel/drivers/macintosh/windfarm_pm121.ko
/lib/modules/2.6.30-2-powerpc64-smp/kernel/drivers/macintosh/windfarm_pm81.ko
/lib/modules/2.6.30-2-powerpc64-smp/kernel/drivers/macintosh/windfarm_pm91.ko
/lib/modules/2.6.30-2-powerpc64-smp/kernel/drivers/macintosh/windfarm_smu_controls.ko
/lib/modules/2.6.30-2-powerpc64-smp/kernel/drivers/macintosh/windfarm_smu_sat.ko
/lib/modules/2.6.30-2-powerpc64-smp/kernel/drivers/macintosh/windfarm_smu_sensors.ko
However, in 2.6.31, only windfarm_core is available. Thus, at every boot, the
fan speeds up and is very noisy, and the cpufreq isn't clamped correctly,
possibly leading to overheating.
Please compile the windfarm modules for 2.6.31 too.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
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[karmic] kernel 2.6.31-* for powerpc doesn't contain windfarm modules anymore
https://bugs.launchpad.net/bugs/413150
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