https://bugzilla.kernel.org/show_bug.cgi?id=193981
--- Comment #3 from Fabian plusfabi@gmail.com --- Linux 4.4.47 is quiet. So it has to be somewhere in between 4.5 - 4.8. Wasnt there a fan/hwmon related work in 4.6? or .7?
4.10RC7 has no fix for this. Mesa/Xorg seems also not related here.