kern/97383: Volume buttons on IBM Thinkpad crash system with ACPI

Fri Jun 30 19:30:22 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 21:22:09 +0200

 I managed to get hold of an MS-DOS environment for running "PS2.EXE
 IDE2 Disable" from IBM [1] on my IBM ThinkPad X31 as adviced in the
 previously mentioned mailing list posts.

 After disabling the secondary IDE bus I can no longer reproduce the
 problem described here. Disabling the seconday IDE bus will, however,
 also make it impossible to use a secondary HDD or CDROM drive in an
 UltraBay docking station, so this is not an optimal solution - only a
 work-around.

 Footnote: this problem doesn't exist with other operating systems such
 as GNU/Linux, which indicates that it is a problem that can be solved
 in software.

 [1]: http://www-307.ibm.com/pc/support/site.wss/document.do?sitestyle=lenovo&lndocid=MIGR-4ZFPEG
 -- 
 Henrik Brix Andersen <henrik at brixandersen.dk>