kern/97383: Volume buttons on IBM Thinkpad crash system with
ACPI
Henrik Brix Andersen
henrik at brixandersen.dk
Fri Jun 30 17:51:11 UTC 2006
The following reply was made to PR kern/97383; it has been noted by GNATS.
From: Henrik Brix Andersen <henrik at brixandersen.dk>
To: bug-followup at FreeBSD.org, fotios at prometheus.csh.rit.edu
Cc:
Subject: Re: kern/97383: Volume buttons on IBM Thinkpad crash system with ACPI
Date: Fri, 30 Jun 2006 19:10:37 +0200
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I can reproduce this problem with FreeBSD 6.1-RELEASE on my IBM
ThinkPad X31.
Whenever I attempt to access the hardware through ACPI, either by
powering down (shutdown -h now), rebooting (shutdown -r now), loading
the acpi_ibm kernel module (kldload acpi_ibm), pressing the volume
keys etc, the system locks up with no sign as to why.
I have found many postings on various mailing lists (see e.g. [1] and
[2]) that suggest using PS2.EXE from IBM to disable the secondary IDE
channel, but I have yet to find a way to try that as I do not have
access to a Microsoft Windows environment.
[1]: http://lists.freebsd.org/pipermail/freebsd-acpi/2004-November/000870.h=
tml
[2]: http://lists.freebsd.org/pipermail/freebsd-current/2004-January/019435=
=2Ehtml
--=20
Henrik Brix Andersen <henrik at brixandersen.dk>
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