linux-kernel - Re: linux-next-20180723: battery status funny after bootup

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Message-ID: <CAJZ5v0g=Ey6ZiyjA3NWS_C5zXBUydJNaKOZDbRNFYUGEc8YuaQ@mail.gmail.com>
Date:   Tue, 24 Jul 2018 10:27:08 +0200
From:   "Rafael J. Wysocki" <rafael@...nel.org>
To:     Pavel Machek <pavel@....cz>
Cc:     "Rafael J. Wysocki" <rjw@...ysocki.net>,
        kernel list <linux-kernel@...r.kernel.org>,
        Linux-pm mailing list <linux-pm@...r.kernel.org>,
        Len Brown <lenb@...nel.org>,
        ACPI Devel Maling List <linux-acpi@...r.kernel.org>
Subject: Re: linux-next-20180723: battery status funny after bootup

On Mon, Jul 23, 2018 at 11:49 PM, Pavel Machek <pavel@....cz> wrote:
>
> pavel@amd:~$ cat /proc/acpi/battery/BAT0/state
> present:                 yes
> capacity state:          ok
> charging state:          charged
> present rate:            0 mW
> remaining capacity:      0 mWh
> present voltage:         0 mV
> pavel@amd:~$ uname -a
> Linux amd 4.18.0-rc6-next-20180723+ #141 SMP Mon Jul 23 22:11:47 CEST
> 2018 i686 GNU/Linux
>
> It will correct itself if I unplug/replug the AC adapter, I
> believe. Gnome2 battery monitor also looks confused.

There are two battery changes in linux-next now that are not present
in the mainline

2a2aad34362b ACPI: battery: remove redundant old_present check on insertion
706ac4aa536f ACPI: battery: use cache_time as cache "enabled"

Does reverting any of them help?  Or is the problem present in the mainline too?