Comment 75 for bug 77370

I'm not using Ubuntu at the moment, but i think it's relevant.
On recent kernels there is no /proc/acpi/fan or /proc/acpi/thermal. Instead there are /sys/devices/virtual/thermal/cooling_deviceX and /sys/devices/virtual/thermal/thermal_zoneX, or something like that. I didn't managed to get workaround scripts working, but:
rmmod thermal;
modprobe thermal tzp=1000; (or other numer, tzp - Thermal Zone Polling frequency, units are in deci-seconds)
sometimes running above commands fix it for me, but then again, sometimes it don't...