diagonising a overheating problem

[Anton Shterenlikht]

On Mon, May 14, 2012 at 06:56:47PM -0400, Aryeh Friedman wrote:
> On Mon, May 14, 2012 at 6:37 PM, Bartosz Fabianowski <freebsd at chillt.de> wrote:
> > Try sysctl dev.cpu.0.temperature. I have a notoriously overheating Dell
> > laptop and for me, this sysctl always reports the temperature.
> >
> > - Bartosz
> 
> ~/Desktop aryeh at localhost% sysctl dev.cpu.0.temperature
> sysctl: unknown oid 'dev.cpu.0.temperature'
> ~/Desktop aryeh at localhost% sysctl dev.cpu.0
> dev.cpu.0.%desc: ACPI CPU
> dev.cpu.0.%driver: cpu
> dev.cpu.0.%location: handle=\_PR_.C000
> dev.cpu.0.%pnpinfo: _HID=none _UID=0
> dev.cpu.0.%parent: acpi0
> dev.cpu.0.freq: 1500
> dev.cpu.0.freq_levels: 1500/7260 1400/6056 1225/5299 1200/5125
> 1100/4500 1000/4095 900/3753 800/3468 700/3034 600/2601 500/2167
> 400/1734 300/1300 200/867 100/433
> dev.cpu.0.cx_supported: C1/0 C2/100
> dev.cpu.0.cx_lowest: C1
> dev.cpu.0.cx_usage: 100.00% 0.00% last 233us
> _______________________________________________

GEN8> sysctl hw.acpi.thermal
hw.acpi.thermal.min_runtime: 0
hw.acpi.thermal.polling_rate: 10
hw.acpi.thermal.user_override: 0
hw.acpi.thermal.tz0.temperature: 61.0C
hw.acpi.thermal.tz0.active: 2
hw.acpi.thermal.tz0.passive_cooling: 1
hw.acpi.thermal.tz0.thermal_flags: 0
hw.acpi.thermal.tz0._PSV: 95.0C
hw.acpi.thermal.tz0._HOT: -1
hw.acpi.thermal.tz0._CRT: 105.0C
hw.acpi.thermal.tz0._ACx: 75.0C 65.0C 50.0C 40.0C -1 -1 -1 -1 -1 -1
hw.acpi.thermal.tz0._TC1: 1
hw.acpi.thermal.tz0._TC2: 2
hw.acpi.thermal.tz0._TSP: 100
GEN8>

See acpi_thermal(4)

-- 
Anton Shterenlikht
Room 2.6, Queen's Building
Mech Eng Dept
Bristol University
University Walk, Bristol BS8 1TR, UK
Tel: +44 (0)117 331 5944
Fax: +44 (0)117 929 4423