linux-kernel - Bug 217057 - Asus high CPU temperature / low fan speed

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Date:   Sun, 19 Feb 2023 07:35:13 +0100
From:   Thorsten Leemhuis <regressions@...mhuis.info>
To:     Corentin Chary <corentin.chary@...il.com>,
        Hans de Goede <hdegoede@...hat.com>,
        Mark Gross <markgross@...nel.org>,
        Jean Delvare <jdelvare@...e.com>,
        Guenter Roeck <linux@...ck-us.net>
Cc:     acpi4asus-user@...ts.sourceforge.net,
        "platform-driver-x86@...r.kernel.org" 
        <platform-driver-x86@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>, linux-hwmon@...r.kernel.org,
        jacobecc9@...il.com
Subject: Bug 217057 - Asus high CPU temperature / low fan speed

Hi! I look out for reported regression in bugzilla.kernel.org and
normally ignore everything else. But I noticed a newly submitted report
that sounded somewhat bad, that's why I decided to write this mail to
ensure the right people are at least aware of it.

https://bugzilla.kernel.org/show_bug.cgi?id=217057

>  jacobecc9@...il.com 2023-02-18 21:03:13 UTC
> 
> laptop Asus X415EA (Tiger Lake) is running fan too slow in automatic
> mode even if CPU temperature is over 90C. There are no options in BIOS.
> Windows has software which allows fan to reach high speed with
> performance fan curve. Linux only allows to disable PWM.
> 
> [reply] [−] Comment 1 jacobecc9@...il.com 2023-02-18 21:45:59 UTC
> 
> [   19.733079] asus_wmi: ASUS WMI generic driver loaded
> [   19.779429] asus_wmi: Initialization: 0x1
> [   19.779476] asus_wmi: BIOS WMI version: 9.0
> [   19.779507] asus_wmi: SFUN value: 0x21
> [   19.779510] asus-nb-wmi asus-nb-wmi: Detected ATK, not ASUSWMI, use DSTS
> [   19.779513] asus-nb-wmi asus-nb-wmi: Detected ATK, enable event queue
> [   19.814908] input: Asus WMI hotkeys as /devices/platform/asus-nb-wmi/input/input23
> [   19.827710] asus_wmi: fan_curve_get_factory_default (0x00110024) failed: -19
> [   19.827840] asus_wmi: fan_curve_get_factory_default (0x00110025) failed: -19

Ciao, Thorsten