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From: Len Brown <len.brown@intel.com>
To: jnf <jnf@datakill.org>
Cc: linux-kernel@vger.kernel.org
Subject: Re: new laptop woes
Date: 11 May 2004 23:20:57 -0400	[thread overview]
Message-ID: <1084332057.12354.127.camel@dhcppc4> (raw)
In-Reply-To: <Pine.BSO.4.58.0405112032430.31433@metawire.org>

On Tue, 2004-05-11 at 21:37, jnf wrote:

> > try booting with "nolapic"
> 
> This worked - now seeing as it worked, and I can't find any mention of it 
> in the bootparam man page [and i havent dug through the source yet], what 
> exactly did i do?

Linux enables the Local APIC even on uni-processors systems so that it
can use the LOCal APIC timer.  This policy causes a significant
population of laptops to freeze when booted with ACPI enabled. 
Curiously, we've seen this failure go away on some laptops after a BIOS
upgrade -- so you shoul verify that you're running the latest BIOS for
your system.

Perhaps you could try the test patch here
http://bugzilla.kernel.org/show_bug.cgi?id=2044
and add a comment to the bug report on if it makes any difference or not.

> 
> > I escaped from CVS in 1994, underwent several years of therapy, and
> > haven't used it since.  I don't know what ACPI CVS is on SF, point me to
> > it and I'll be happy to delete it.
> 
> hehe no problem, I was under the impression that was the 'official' site 
> for acpi, but i found that odd seeing as nothing on the site seemed newer 
> than ~12 months, and i knew that ACPI had undergone some fixes/changes 
> since then.

/usr/src/MAINTAINERS lists me as the maintainer, and has this home page
for the project, which is updated periodically (tho not by me):
http://acpi.sourceforge.net/

cheers,
-Len



  reply	other threads:[~2004-05-12  3:21 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <A6974D8E5F98D511BB910002A50A6647615FB0B1@hdsmsx403.hd.intel.com>
2004-05-11 17:09 ` new laptop woes Len Brown
2004-05-12  1:37   ` jnf
2004-05-12  3:20     ` Len Brown [this message]
2004-05-13 12:55 Martin Knoblauch
  -- strict thread matches above, loose matches on Subject: below --
2004-05-11 16:24 jnf
2004-05-12  7:14 ` Helge Hafting
2004-05-12 15:19   ` jnf

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