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Date: Wed, 31 Dec 2003 20:51:49 -0800
From: Steve Kargl <sgk@troutmask.apl.washington.edu>
To: David Gilbert <dgilbert@dclg.ca>
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cc: freebsd-current@freeBSD.org
Subject: Re: Dell 5150 laptop and lost PS/2 touchpad
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On Wed, Dec 31, 2003 at 11:16:01PM -0500, David Gilbert wrote:
> >>>>> "Steve" == Steve Kargl <sgk@troutmask.apl.washington.edu> writes:
> 
> Steve> I'm not sure if this is a Dell BIOS problem, new interrupt code
> Steve> problem, or PS/2 device driver problem.  The Dell 5150 laptop
> Steve> has a Synaptic touchpad, which fails to attach with the GENERIC
> Steve> kernel from RC1 and a custom kernel from today sources.  A
> Steve> verbose boot shows:
> 
> I found it critical to patch the problems in the Dell BIOS version of
> the ACPI DSDT before I could get the touchpad to work on an 1100
> recently.
> 

ACPI was unimportant.  The problem is due to Dell's A25 BIOS
for the 5150.  You need to set an appropriate flag in 
/boot/devices.hint file to ignore probe errors on of psm.

-- 
Steve