linux-kernel - Re: [PATCH 0/3] ACPI: platform_profile: fix legacy sysfs with multiple handlers

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Message-ID: <9fa91732-3085-4e79-9a8f-b38263ee7d08@gmx.de>
Date: Mon, 24 Feb 2025 23:49:13 +0100
From: Armin Wolf <W_Armin@....de>
To: Antheas Kapenekakis <lkml@...heas.dev>, Luke Jones <luke@...nes.dev>
Cc: Mark Pearson <mpearson-lenovo@...ebb.ca>,
 "Limonciello, Mario" <mario.limonciello@....com>,
 Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>,
 Len Brown <lenb@...nel.org>,
 "linux-acpi@...r.kernel.org" <linux-acpi@...r.kernel.org>,
 linux-kernel@...r.kernel.org,
 "platform-driver-x86@...r.kernel.org" <platform-driver-x86@...r.kernel.org>,
 "Rafael J. Wysocki" <rafael@...nel.org>, Hans de Goede
 <hdegoede@...hat.com>, me@...egospodneti.ch
Subject: Re: [PATCH 0/3] ACPI: platform_profile: fix legacy sysfs with
 multiple handlers

Am 24.02.25 um 22:58 schrieb Antheas Kapenekakis:

> I will tell you that compared with other manufacturers, when asus says
> quiet, they mean quiet and not low power
>
> Z13's quiet mode is 40W, not very low-power if you ask me. Ally X uses
> 13w+boost, a source of many complaints. Other manufacturers use around
> 8W for low power modes.
>
> In any case, any rename might break user scripts and there are
> actually 3 types of low power profiles:
> PLATFORM_PROFILE_COOL
> PLATFORM_PROFILE_QUIET
> PLATFORM_PROFILE_LOW_POWER
>
> Then, there is also:
> PLATFORM_PROFILE_BALANCED_PERFORMANCE
>
> Some ACER laptops implement many of those
>
> Obscuring any of those is not ideal.
>
>
> Antheas
>
I see. Maybe extending userspace to support the new platform-profile class interface
could solve this issue without breaking already existing scripts.

However i do not know the amount of work which needs to be done to achieve this.

Thanks,
Armin Wolf