[Bug 960925] Re: cpu resources divided to graphic driver

[Atadam]

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

Status in “acpid” package in Ubuntu:
  New

Bug description:
  Since we had this summer over 45°C and my Laptop did not overheat i was just surprised that after the latest kernel update my Laptop started to do an emergency shutdown now and then. My first try was to change the fan settings in the Bios and oops there is no such thing. Only a choice where you might keep the fan running (I never shut of) or you allow it to shut down if it pleases to do so.  No temperature adjustment. After reading a bit HP site i found that they have a algorithm for fan control and it is obvious that is intended to keep the laptop silent.
  Though silence is not my main trouble but a fresh fried cpu is. 
  Has anybody a idea how to overcome the HP silent treatment and get some adjustment to temperature settings by making the fan work earlier.
  sensors tells me the following but all my feeble attempts to find and adjust it failed so far.

  acpitz-virtual-0
  Adapter: Virtual device
  temp1:       +56.1°C  (crit = +108.0°C)                  
  temp2:       +23.4°C  (crit = +108.0°C)                  

  k10temp-pci-00c3
  Adapter: PCI adapter
  temp1:       +56.1°C  (high = +70.0°C, crit = +100.0°C) 

  I'm good with Horses not with bites (too many teeth).

  Marcus

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