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Old 09-28-2020, 03:22 AM   #1
mglinux
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Registered: Sep 2020
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Question What are the labels for thermal sensors listed in /proc/acpi/ibm/thermal


I have a thinkpad p53, and I'm trying to determine what devices the temperatures listed in /proc/acpi/ibm/thermal refer to:

Code:
> cat /proc/acpi/ibm/thermal
temperatures:   38 36 0 0 42 41 50 -128
These correspond with the temperatures listed under thinkpad-isa-0000 when I monitor with lm-sensors:

Code:
thinkpad-isa-0000
Adapter: ISA adapter
fan1:        3432 RPM
temp1:        +38.0C
temp2:        +35.0C
temp3:         +0.0C
temp4:         +0.0C
temp5:        +42.0C 
temp6:        +40.0C
temp7:        +50.0C
temp8:            N/A
Would anyone know how I might be able to identify what each of these temperatures represent?
 
Old 09-28-2020, 01:42 PM   #2
rnturn
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Registered: Jan 2003
Location: Illinois (SW Chicago 'burbs)
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Quote:
Originally Posted by mglinux View Post
I have a thinkpad p53, and I'm trying to determine what devices the temperatures listed in /proc/acpi/ibm/thermal refer to:

Code:
> cat /proc/acpi/ibm/thermal
temperatures:   38 36 0 0 42 41 50 -128
These correspond with the temperatures listed under thinkpad-isa-0000 when I monitor with lm-sensors:

Code:
thinkpad-isa-0000
Adapter: ISA adapter
fan1:        3432 RPM
temp1:        +38.0C
temp2:        +35.0C
temp3:         +0.0C
temp4:         +0.0C
temp5:        +42.0C 
temp6:        +40.0C
temp7:        +50.0C
temp8:            N/A
Would anyone know how I might be able to identify what each of these temperatures represent?
See the file: /usr/src/linux/Documentation/laptops/thinkpad-acpi.txt

There's a section entitled "Temperature sensors" about 60% of the way into the file.

(Note: You'll need the kernel source package installed to see this file.)


HTH...
 
2 members found this post helpful.
Old 09-28-2020, 06:41 PM   #3
mglinux
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Registered: Sep 2020
Posts: 2

Original Poster
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Quote:
Originally Posted by rnturn View Post
See the file: /usr/src/linux/Documentation/laptops/thinkpad-acpi.txt

There's a section entitled "Temperature sensors" about 60% of the way into the file.

(Note: You'll need the kernel source package installed to see this file.)


HTH...
Thanks - that does help. Empirically, it would seem the 7th sensor tends to be the battery.
 
1 members found this post helpful.
  


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