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Date: Fri, 19 Oct 2007 11:36:59 +0200
From: Olaf Hering <olaf@aepfle.de>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Subject: Re: apm system does not power off anymore
Message-ID: <20071019093659.GA15509@aepfle.de>
References: <20071012125426.GA16626@aepfle.de> <20071014232316.4beb160f.akpm@linux-foundation.org>
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On Sun, Oct 14, Andrew Morton wrote:

> On Fri, 12 Oct 2007 14:54:26 +0200 Olaf Hering <olaf@aepfle.de> wrote:
> 
> > Does anyone know what is required to power off an old PIII 400mhz
> > system? At some point (2.6.18 I think), apm=power-off was required with
> > an SMP kernel. Now with 2.6.22 and 2.6.23, even that does not work
> > anymore.
> 
> We break old machines at an unacceptably high (IMO) rate and then don't
> fix them.  Please, bisect it?

CONFIG_APM was changed from =y to =m.
'modprobe -v apm power_off=1'  fixed it.