Temperature sensors on x470 not reporting correctly

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apport-collect 1774817

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If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

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Sorry this is the first ever bug I report, apport-collect returns:

Waiting to hear from Launchpad about your decision...
dpkg-query: no packages found matching linux

Do you use 2700 or 2700X?
There's a new patch for 2700X:
commit 1b59788979acd230b9627276c76f6e6ba2c4709c
Author: Guenter Roeck <email address hidden>
Date: Tue Apr 24 06:55:55 2018 -0700

    hwmon: (k10temp) Add temperature offset for Ryzen 2700X

Hi Kai-Heng,
I am using 2700, specifically because it's a mini-itx and lower power is beneficial for small form factors.
Thanks regardless!

This also applies to the new Threadrippers (2990WX, etc.)

Recent commits

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/diff/drivers/hwmon/k10temp.c?id=484a84f25ca7817c3662001316ba7d1e06b74ae2

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/drivers/hwmon/k10temp.c?id=cd6a2064dbf9e485b80c54687f0ce91cca91a6df

Does this affect "real" usage? AFAICT thermald doesn't work on AMD platforms (yet).

My system is overclocked so that it's fine for daily use but when I do
encoding it can sometimes stop due to thermals.
It also directly impacts benchmarking, since I don't see the temperature
profile rise, it's hard to figure out what to do.

On Thu, Mar 7, 2019 at 1:45 AM Kai-Heng Feng <email address hidden>
wrote:

> Does this affect "real" usage? AFAICT thermald doesn't work on AMD
> platforms (yet).
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1774817
>
> Title:
> Temperature sensors on x470 not reporting correctly
>
> Status in linux package in Ubuntu:
> Triaged
>
> Bug description:
> x470-I ROG strix motherboard and Ryzen 2700
>
> After
> sudo sensors-detect
> and answering yes to all the probes the net result is:
> "Sorry, no sensors were detected.
> Either your system has no sensors, or they are not supported, or
> they are connected to an I2C or SMBus adapter that is not
> supported."
>
> sensors output lists:
> asus-isa-0000
> Adapter: ISA adapter
> cpu_fan: 0 RPM
>
> nouveau-pci-0900
> Adapter: PCI adapter
> fan1: 0 RPM
> temp1: +65.0°C (high = +95.0°C, hyst = +3.0°C)
> (crit = +105.0°C, hyst = +5.0°C)
> (emerg = +135.0°C, hyst = +5.0°C)
>
> k10temp-pci-00c3
> Adapter: PCI adapter
> temp1: +94.2°C (high = +70.0°C)
>
> Where the cpu fan is patently wrong and the k10temp likewise. The
> nouveau-pci-0900 appears to be the actual CPU temperature.
>
> May be related to:
> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1740736
>
> Other info:
> Description: Ubuntu 18.04 LTS
> Release: 18.04
>
> version log:
> Ubuntu 4.15.0-22.24-generic 4.15.17
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1774817/+subscriptions
>

Thermal shutdown by kernel or by BIOS?

The new ASUS EC sensor (asus-ec-sensors) driver might help you - see https://www.phoronix.com/scan.php?page=news_item&px=Linux-5.18-HWMON for more information.

This driver has been included in the first release candidate of the upcoming Linux 5.18 kernel (5.18-rc1). You can download this 5.18-rc1 kernel from https://kernel.ubuntu.com/~kernel-ppa/mainline/?C=N;O=D and instructions on how to install and uninstall it are at https://wiki.ubuntu.com/Kernel/MainlineBuilds