Re: lm-sensors doesn't see the cpu rpm.....

On 28 December 2017 at 13:55, Greg Wooledge <wooledg@eeg.ccf.org> wrote:

On Thu, Dec 28, 2017 at 01:11:56PM +0000, Michael Fothergill wrote:
> root@bong:/boot# sudo modprobe coretemp
> modprobe: ERROR: could not insert 'coretemp': No such device
>
>
> This is odd because coretemp is set as a module option in the config file:
>
> CONFIG_SENSORS_CORETEMP=m
>
> Comments appreciared

Well, it *should* work with a standard Debian kernel and applicable
hardware.

If you look here:

https://askubuntu.com/questions/748615/lm-sensors-not-returning-cpu-temp-it87

it says that You need to append acpi_enforce_resources=lax at the end of the line GRUB_CMDLINE_LINUX

in /etc/default/grub to make e.g. the it87 module work for the FX8350 chip AFAICT

BUT

If you look at my /etc/default/grub:

root@bong:/etc/default# more grub
# If you change this file, run 'update-grub' afterwards to update
# /boot/grub/grub.cfg.
# For full documentation of the options in this file, see:
#   info -f grub -n 'Simple configuration'

GRUB_DEFAULT=0
GRUB_TIMEOUT=10
GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
GRUB_CMDLINE_LINUX_DEFAULT="quiet"
GRUB_CMDLINE_LINUX="initrd=/install/initrd.gz"

# Uncomment to enable BadRAM filtering, modify to suit your needs
# This works with Linux (no patch required) and with any kernel that obtains
# the memory map information from GRUB (GNU Mach, kernel of FreeBSD ...)
#GRUB_BADRAM="0x01234567,0xfefefefe,0x89abcdef,0xefefefef"

# Uncomment to disable graphical terminal (grub-pc only)
#GRUB_TERMINAL=console

# The resolution used on graphical terminal
# note that you can use only modes which your graphic card supports via VBE
# you can see them in real GRUB with the command `vbeinfo'
#GRUB_GFXMODE=640x480

# Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux
#GRUB_DISABLE_LINUX_UUID=true

# Uncomment to disable generation of recovery mode menu entries
#GRUB_DISABLE_RECOVERY="true"

# Uncomment to get a beep at grub start
#GRUB_INIT_TUNE="480 440 1"
root@bong:/etc/default#

I don't have any acpi command in there but lsmod does list it87 as a module for my install:

root@bong:/etc/default# lsmod | grep it87
it87 57344 0
hwmon_vid 16384 1 it87

Does it need to have a 1 not a zero in there for the it87 to actually be working even if it is installed?

Cheers

wooledg:~$ /sbin/modinfo coretemp
filename: /lib/modules/4.9.0-4-amd64/kernel/drivers/hwmon/coretemp.ko
license: GPL
description: Intel Core temperature monitor
author: Rudolf Marek <r.marek@assembler.cz>
alias: cpu:type:x86,ven0000fam*mod*:feature:*01C0*
depends:
intree: Y
vermagic: 4.9.0-4-amd64 SMP mod_unload modversions
parm: tjmax:TjMax value in degrees Celsius (int)

Your "No such device" error sounds like it probed for hardware and didn't
find any. If the module itself were missing from the file system, then
I would have expected "FATAL: Module coretemp not found in directory ...".

It says "Intel" in the description. Are you using an Intel CPU?