Arch Linux

zcal

Member

Registered: 2010-01-13

Posts: 57

[SOLVED] lm_sensors only reports 2 cores for Intel i7 CPU

I recently installed Arch on a ThinkPad X1 Carbon (gen 2).  It has an Intel Haswell i7 4600U CPU.  I installed lm_sensors and ran sensors-detect, using the default answers for all questions.  The problem is that sensors only reports temperatures for 2 (maybe 3?, not sure what the "Packge id" line is) of the processor's 4 cores.  Output is below.  Is there anything I can do to to get the report for all 4 cores?

coretemp-isa-0000
Adapter: ISA adapter
Package id 0:  +39.0°C  (high = +100.0°C, crit = +100.0°C)
Core 0:        +34.0°C  (high = +100.0°C, crit = +100.0°C)
Core 1:        +38.0°C  (high = +100.0°C, crit = +100.0°C)

acpitz-virtual-0
Adapter: Virtual device
temp1:        +37.0°C  (crit = +200.0°C)

thinkpad-isa-0000
Adapter: ISA adapter
fan1:           0 RPM

Last edited by zcal (2018-01-16 17:17:04)

Slithery

Administrator

From: Norfolk, UK

Registered: 2013-12-01

Posts: 5,776

Re: [SOLVED] lm_sensors only reports 2 cores for Intel i7 CPU

That processor only has 2 cores.

https://ark.intel.com/products/76616/In … o-3_30-GHz

Last edited by Slithery (2018-01-16 16:34:43)

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No, it didn't "fix" anything. It just shifted the brokeness one space to the right. - jasonwryan
Closing -- for deletion; Banning -- for muppetry. - jasonwryan

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R00KIE

Forum Fellow

From: Between a computer and a chair

Registered: 2008-09-14

Posts: 4,734

Re: [SOLVED] lm_sensors only reports 2 cores for Intel i7 CPU

Your CPU is a dual core[1] cpu so that is correct.

[1] https://ark.intel.com/products/76616/In … o-3_30-GHz

Edit:
Snipped by slithery

Last edited by R00KIE (2018-01-16 16:42:17)

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R00KIE
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zcal

Member

Registered: 2010-01-13

Posts: 57

Re: [SOLVED] lm_sensors only reports 2 cores for Intel i7 CPU

So it is.  I was looking at the number of threads and ignoring physical cores.  Oops.