Today I asked myself the simple question:
What in Goods name has a driver to do with the temperature sensor on my cpu and 
why does it alter trip points intended to keep the cpu temperature in check.
The possible answer might be:
My Laptop has no GPU sensor (for whatever reason) though it might be the 
attempt to control the gpu that messes with trip points designed to control CPU 
trip points.

sensors read
acpitz-virtual-0
Adapter: Virtual device
temp1:       +71.5°C  (crit = +108.0°C)                  
temp2:       +20.0°C  (crit = +108.0°C)                  

k10temp-pci-00c3
Adapter: PCI adapter
temp1:       +71.5°C  (high = +70.0°C, crit = +100.0°C) 

lowest trip point is now 70°C (trip_point4 = 69°C)
emergency shut-down temperature 92°C
and the lowest trip point within 
/sys/bus/acpi/drivers/thermal/LNXTHERM:01/thermal_zone is documented as 48°C
highest is trip_point0 (108°C)

Since the kernel last summer had no problem with it, i assume there has
been a change that altered trip point usage or was intended to alter GPU
sensor values for whatever reason.

with best regards M.Peters

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https://bugs.launchpad.net/bugs/960925

Title:
  cpu resources divided to graphic driver

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