Can't get the right CPUcore temperature (Acpi chip)

Question

After replacing my motherboard I try to get Psensor working correctly but still I cannot get the right temperature for my CPUcore temp, it's always -127C degrees. I installed lm-sensors and everything it's needed to check the temp, so after running:

sudo sensors-detect

I answered yes to everything and it found:

Driver `f71882fg':
* ISA bus, address 0x295
Chip `Fintek F71882FG/F71883FG Super IO Sensors' (confidence: 9)

I ran:

sudo service kmod start

when I do:

sudo modprobe f71882fg

I get:

modprobe: ERROR: could not insert 'f71882fg': Device or resource busy

the output of dmesg | tail says:

[47593.565779] f71882fg: Found f71882fg chip at 0x290, revision 32
[47593.565857] ACPI Warning: SystemIO range 0x00000290-0x00000297 conflicts with OpRegion 0x00000295-0x00000296 (\IP__) (20140424/utaddress-258)
[47593.565870] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver

What would be my further actions?

Solution 1

As Oli says, you only need the coretemp module to read Intel CPU core temperature.

I have a similar problem with my w83667hg hardware monitor driver. The workaround is to add acpi_enforce_resources=lax to the kernel command line. To that end

1. edit /etc/default/grub and insert acpi_enforce_resources=lax into the parameter string of GRUB_CMDLINE_LINUX, e. g.

   GRUB_CMDLINE_LINUX='acpi_enforce_resources=lax'
   

2. then run update-grub and reboot.

Solution 2

I'd skip lm-sensors and just read from /sys/class/thermal/thermal_zone0/temp. This should be automatically registered for an ACPI chip. The unit is millidegrees Celsius.

$ cat /sys/class/thermal/thermal_zone0/temp 
47000

There may be many thermal_zoneN devices. In my experience, the CPU is usually the first (and one for each core) but I'm not sure I'd depend on that always being the case.

For other devices that aren't registered through the thermal sysfs API, you would need lm-sensors or something similar.

Comments

[JoKeR]

it works but it says -127000 anyways, that's the problem.

[Oli]

Liquid nitrogen cooling? :D

[JoKeR]

it's simply stock intel.

[JoKeR]

Danke! Thanks a lot finally I got something to work now it shows temp and fan rpm etc just using sensors in terminal. Also is it possible or it's not recommended to take off/remove this virtual adapter value i.imgur.com/ubtlKmv.png?1 because it's even shown in Psensor still. Thanks in advance.

[David Foerster]

Purely by observation I'd simply ignore the acpitz-virtual-0 module, because it obviously produces bogus values. I remember that you can tell sensors-detect to ignore and not display the data from a particular module.

[mohammadh montazeri]

As also mentioned in other websites, it seems that adding acpi_enforce_resources=lax works, but I have a problem and I can't reboot my PC. Is there any answer without the need to reboot?

[David Foerster]

@mohammadhmontazeri: Could you please open a new question if you have a new or follow-up question? The comment section is not suitable or meant for new questions or extended discussion. I can take a look at it if you send me a link to it. Thanks.