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Date:   Mon, 18 Oct 2021 12:40:47 +0200
From:   "Andreas K. Huettel" <>
To:     Linux ACPI <>,
        "Rafael J. Wysocki" <>
Cc:     LKML <>,
        Linux PCI <>,
        Linux PM <>,
        Mika Westerberg <>
Subject: Re: [EXT] [PATCH v1 2/2][RFT] ACPI: PM: Check states of power resources during initialization

Am Freitag, 15. Oktober 2021, 19:14:10 CEST schrieb Rafael J. Wysocki:
> From: Rafael J. Wysocki <>
> To avoid situations in which the actual states of certain ACPI power
> resources are not known just because they have never been referenced
> by any device configuration objects, check the initial states of all
> power resources as soon as they are found in the ACPI namespace (and
> fall back to turning them on if the state check fails).
> Signed-off-by: Rafael J. Wysocki <>
> ---
> Andreas, please test this patch (on top of the [1/2]) and let me know
> if it works for you.

I see no negative impact (actually, no impact at all) of the second
additional patch. The network card is again working fine now.

Boot logs (unpatched, with one patch, with both patches) at  (the 5.14.12* files).


PD Dr. Andreas K. Huettel
Institute for Experimental and Applied Physics
University of Regensburg
93040 Regensburg

tel. +49 151 241 67748 (mobile)
tel. +49 941 943 1618 (office)
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