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From: Stephen Dunn <nzlbob2332@gmail.com>
To: linux-acpi@vger.kernel.org
Subject: Boot fails on Thinkpad L420 without ACPI=off or nosmp
Date: Wed, 02 Nov 2011 12:12:29 +1300	[thread overview]
Message-ID: <7377461.xUP08Ft1Zz@linux-9am5.site> (raw)

Hello all

OS Information
OS:  Linux 3.1.0-rc9-1-desktop x86_64
System:  openSUSE 12.1 RC 1 (x86_64)
KDE:  4.7.2 (4.7.2)

Hardware Information
Lenovo Thinkpad L420 Model number 78544KM
i5-2520M(2.50GHz)
Intel HD Graphics

Problem
Fails to boot without boot option of either acpi=off, nosmp, or maxcpus=0

Almost immediately freezes. CapsLock does not work and only way to continue is 
to power off with the power button.

With debug on last line of output reads:
ACPI: CE: Look up EC in DSDT

Fails with kernel 3.04 and 3.1 and all distro's I have tried with.

Boots no problem with 32bit and with Windows 7

acpidump
https://docs.google.com/open?id=0B2IDfK0E8tJkMDFlYjM4MTEtNmM1Ni00ZGFkLTg2MzQtYTM2YTIyOWYzYmVm

Please let me know what other information I should provide.

Thank you

Regards
Steve

             reply	other threads:[~2011-11-01 23:12 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-11-01 23:12 Stephen Dunn [this message]
2011-11-07 18:26 ` Boot fails on Thinkpad L420 without ACPI=off or nosmp Len Brown
2011-11-08 10:12   ` Stephen Dunn

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