ACPI Exception AE_BAD_ADDRESS in Lenovo ThinkPad S440

[Lars Engels]

On Mon, Jul 20, 2015 at 02:34:01PM +0200, Juan Ramón Molina Menor wrote:
> Le 20/07/2015 05:48, Kevin Oberman a écrit :
> > On Sun, Jul 19, 2015 at 2:54 AM, Juan Ramón Molina Menor
> > <listjm at club-internet.fr <mailto:listjm at club-internet.fr>> wrote:
> >
> >     Hello.
> >
> >     I’ve just got a Lenovo ThinkPad S440 and would like to test FreeBSD
> >     10.2-BETA2 on it. I’ve 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’m not sure I’m doing it right and this
> >     is an issue for later.
> >
> >     I’ve created a PR with the information asked for in the ACPI chapter
> >     of the handbook:
> >     https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=201678
> >
> >     Best regards,
> >     Juan
> >     _______________________________________________
> >     freebsd-acpi at freebsd.org <mailto:freebsd-acpi at freebsd.org> mailing list
> >     http://lists.freebsd.org/mailman/listinfo/freebsd-acpi
> >     To unsubscribe, send any mail to
> >     "freebsd-acpi-unsubscribe at freebsd.org
> >     <mailto:freebsd-acpi-unsubscribe at 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.
> 
> Thanks Kevin. Could you please give me a hint for silencing these 
> errors? They are making very hard to use the installer or live USB for 
> testing purposes. I guess the BIOS will take care of thermal and fan 
> 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).
> 
> > Brightness is finally working on most or all. Thermal should show up in
> > hw.acpi and dev.cpu.
> 
> Brightness levels are correctly shown (1-100) after loading the 
> acpi_video kernel module, but I cannot change them. Maybe it’s the 
> Haswell chip not responding. I’m going to try CURRENT.
> 
> Thermal hw.acpi sysctls show bogus values, but dev.cpu works after 
> loading the coretemp kernel module.
> 
> Best regards,
> Juan
> 
> >
> > 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 at gmail.com <mailto:rkoberman at gmail.com>
> > PGP Fingerprint: D03FB98AFA78E3B78C1694B318AB39EF1B055683
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