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

[Atadam]

Just to do a bit trial and error routine i added acpi=off to /etc/default/grub. The result was as expected that cpu was running at highest speed and as a change the fan decided to do the same at 84°C.
If not for cpu frequency i would have appreciated the improved speed.
This is what i found in /proc/acpi/thermal_zone/CPUZ/trip_points

critical (S5):           108 C
passive:                 100 C: tc1=1 tc2=2 tsp=100 devices=CPU0 CPU1 C002 C003 
active[0]:               92 C: devices=FAN0 
active[1]:               84 C: devices=FAN1 
active[2]:               75 C: devices=FAN2 
active[3]:               57 C: devices=FAN3 
active[4]:               48 C: devices=FAN4 

I haven't seen 57°C for months, but know that a routine uses hwmon values as default trip points with fan speeds designed for lowest temperature, but where ever i look everything seems to be fine except that fan resumes to lowest speed after reaching 70°C and believe me it is hot.
Does ANYBODY know which routine should set up fan speeds.
It should be something that picks first trip_points and then puts hwmon values above or overrides trip point in favour of hwmon values.
Where ever i bend it comes down to hwmon values mixed with trip_ponts.

funny thing is that it starts with hwmon value 70°C getting faster at 75 and 84°C omitting 92°C  trip-point and emergency shut-down at 95°C.
Nice mix and not to mention that all Ubuntu distros seem to have similar problems.

It is not the Bios
It is  not lm-sensors related
it has to be a setup routine
it needs to poll hwmon and fan trip ponts

the mistake has to come to life after hwmon is defined and Linuxtherm: is loaded
dmesg
acpi device:01: registered as cooling_device7
???
/sys/bus/acpi/devices/device:01/thermal_cooling/subsystem/cooling_device7/
cur_state = 6
max_state = 24
type = LCD
?????
It is not a cooling device but let me guess the adjustment for my LCD screen registered as cooling device 7
(at least cur_state changes after altering screen)

M.Peters

ANYBODY is this the bug or am i on the wrong trail

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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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