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Date:      Mon, 20 Jul 2015 15:45:26 +0200
From:      Lars Engels <lars.engels@0x20.net>
To:        Juan =?utf-8?B?UmFtw7Nu?= Molina Menor <listjm@club-internet.fr>
Cc:        Kevin Oberman <rkoberman@gmail.com>, "freebsd-acpi@freebsd.org" <freebsd-acpi@freebsd.org>
Subject:   Re: ACPI Exception AE_BAD_ADDRESS in Lenovo ThinkPad S440
Message-ID:  <20150720134526.GK59802@e-new.0x20.net>
In-Reply-To: <55ACEAB9.1070605@club-internet.fr>
References:  <55AB73EC.8030801@club-internet.fr> <CAN6yY1tFLHMsD%2Bovf2FxPO6KdV9xGogGvAN%2B7jGcTRaZf5Qq6w@mail.gmail.com> <55ACEAB9.1070605@club-internet.fr>

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On Mon, Jul 20, 2015 at 02:34:01PM +0200, Juan Ram=C3=B3n Molina Menor wrot=
e:
> Le 20/07/2015 05:48, Kevin Oberman a =C3=A9crit :
> > On Sun, Jul 19, 2015 at 2:54 AM, Juan Ram=C3=B3n Molina Menor
> > <listjm@club-internet.fr <mailto:listjm@club-internet.fr>> wrote:
> >
> >     Hello.
> >
> >     I=E2=80=99ve just got a Lenovo ThinkPad S440 and would like to test=
 FreeBSD
> >     10.2-BETA2 on it. I=E2=80=99ve tried with the UEFI memstick image
> >     (FreeBSD-10.2-BETA2-amd64-uefi-mini-memstick.img.xz). Unfortunately,
> >     shortly after the installer starts, the screen fills with errors
> >     related to ACPI thermal zones:
> >
> >     ACPI Exception: AE_BAD_ADDRESS, Returned by Handler for
> >     [EmbeddedControl] (20150515/evregion-312) S (20150515/psparse-552)
> >
> >     I have tested some features of the acpi_ibm, some do not work: fan
> >     control, for example, but I=E2=80=99m not sure I=E2=80=99m doing it=
 right and this
> >     is an issue for later.
> >
> >     I=E2=80=99ve created a PR with the information asked for in the ACP=
I chapter
> >     of the handbook:
> >     https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D201678
> >
> >     Best regards,
> >     Juan
> >     _______________________________________________
> >     freebsd-acpi@freebsd.org <mailto:freebsd-acpi@freebsd.org> mailing =
list
> >     http://lists.freebsd.org/mailman/listinfo/freebsd-acpi
> >     To unsubscribe, send any mail to
> >     "freebsd-acpi-unsubscribe@freebsd.org
> >     <mailto:freebsd-acpi-unsubscribe@freebsd.org>"
> >
> >
> > IIRC, fan control has not worked since the days of the T61. Newer BIOS
> > end EC don't seem to work. The "ACPI Exception: AE_BAD_ADDRESS" has
> > shown up on various systems for a while.It's reportedly harmless.
>=20
> Thanks Kevin. Could you please give me a hint for silencing these=20
> errors? They are making very hard to use the installer or live USB for=20
> testing purposes. I guess the BIOS will take care of thermal and fan=20
> control.

As a workaround you can exit the installer, change to another terminal,
e.g. "Alt+F2", and start "bsdinstall". (If you need to login, enter
"root" and no password).
>=20
> > Brightness is finally working on most or all. Thermal should show up in
> > hw.acpi and dev.cpu.
>=20
> Brightness levels are correctly shown (1-100) after loading the=20
> acpi_video kernel module, but I cannot change them. Maybe it=E2=80=99s th=
e=20
> Haswell chip not responding. I=E2=80=99m going to try CURRENT.
>=20
> Thermal hw.acpi sysctls show bogus values, but dev.cpu works after=20
> loading the coretemp kernel module.
>=20
> Best regards,
> Juan
>=20
> >
> > I don't have any experience on S series systems, only X and T, but I
> > suspect the ACPI is similar.
> > --
> > Kevin Oberman, Network Engineer, Retired
> > E-mail: rkoberman@gmail.com <mailto:rkoberman@gmail.com>
> > PGP Fingerprint: D03FB98AFA78E3B78C1694B318AB39EF1B055683
> _______________________________________________
> freebsd-acpi@freebsd.org mailing list
> http://lists.freebsd.org/mailman/listinfo/freebsd-acpi
> To unsubscribe, send any mail to "freebsd-acpi-unsubscribe@freebsd.org"

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