On Sat, 2014-02-22 at 10:56 -0500, Daniel Kahn Gillmor wrote: [...] > My experience is that loading the i2c drivers on kernel 3.12 on a G5 > makes the fans calm back down. > > I don't remember the name of the module exactly, but it's something like > powermac-i2c.ko or i2c-powermac.ko (i don't have the machine in front of > me), so "modprobe -v powermac-i2c" or "modprobe -v i2c-powermac" should > do it. This module ought to be auto-loaded where it's needed, but somehow that has broken. I asked Benjamin Herrenschmidt (upstream powerpc maintainer and the last person to touch it) and he was aware of this but hadn't got round to working out why. The workaround is to build it in, so I'm going to do that. (It won't do any harm on non-Mac systems.) Ben. -- Ben Hutchings Beware of bugs in the above code; I have only proved it correct, not tried it. - Donald Knuth
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