On Tue, Jun 30, 2020 at 12:10 PM Vitaly Zaitsev via devel <
devel@lists.fedoraproject.org> wrote:

> On 30.06.2020 17:57, Jared Dominguez wrote:
> > Something that needs to be cleared up here: thermald has existed for the
> > better part of a decade and long before dptfxtract existed.
> Thermald will not work without config being installed.
> You can remove all configs from /etc/thermald and try to start systemd
> unit. It will shutdown immediately.

(BTW, for some context, I was directly involved in the discussion at Dell
-- when I was one of the Linux leads there -- that resulted in someone at
Intel creating dptfxtract as a temporary solution until Intel's open source
folks could find a better solution for supporting DPTF Active policies. I
started at Red Hat in April and asked Benjamin to revisit this topic since
thermald is still incredibly useful without dptfxtract. Plus, a former
colleague at Dell noticed some Fedora users having issues that are solved
by using thermald (even without dptfxtract).)

thermald predates dptfxtract existing. dptfxtract exists to dynamically
pull OEM platform specific configs for only certain kinds of newer DPTF
tables. thermald still runs on most other Intel systems. For example, my
system only has /etc/thermald/thermal-cpu-cdev-order.xml inside
/etc/thermald, and that one xml file only contains this:
Specifies the order of compensation to cool CPU only.
There is a default already implemented in the code, but
this file can be used to change order

The Following cooling device can present

        <!-- Specify Cooling device order -->

I wouldn't consider the above file legally dubious.

After enabling thermald, it's definitely running:
$ rpm -q thermald
$ systemctl status thermald
● thermald.service - Thermal Daemon Service
     Loaded: loaded (/usr/lib/systemd/system/thermald.service; enabled;
vendor preset: disabled)
     Active: active (running) since Tue 2020-06-30 13:01:50 EDT; 12min ago
   Main PID: 296760 (thermald)
      Tasks: 2 (limit: 18941)
     Memory: 2.5M
        CPU: 70ms
     CGroup: /system.slice/thermald.service
             └─296760 /usr/sbin/thermald --no-daemon --dbus-enable

Jared Dominguez (he/him)
Laptop/Desktop Hardware Enablement Manager
RHEL Workstation Engineering
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