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Date: Thu, 29 Aug 2002 17:33:38 -0700 (PDT)
From: mike heffner <mdheffner@yahoo.com>
Subject: Re: PROBLEM:  conflict between apm and system clock on Inspiron 8100
To: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Frank.Otto@tc.pci.uni-heidelberg.de, linux-kernel@vger.kernel.org
In-Reply-To: <20020830094825.75fd8519.sfr@canb.auug.org.au>
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Hi Shephen,

I tried this early on, but I just tried it again to
make sure.  There is no noticeable effect from setting
apm=allow_ints at the boot prompt.  So either my
command is not getting set, or the BIOS itself is
restricting the interrupts?  Is there a way to check
that I did indeed allow interrupts?
  I don't know much about BIOS hacking, any
suggestions about how to get the code for the BIOS
(other than disassembling it)?  I bet Dell isn't going
to give it to me.  I am struggling to get them to even
understand the problem.

Thanks,
Mike


--- Stephen Rothwell <sfr@canb.auug.org.au> wrote:
> 
> OK, for the Dells, we autodetect the 4000 series and
> allow
> interrupts during BIOS calls, but not the 8000's
> (unless
> your RedHat patched kernel does this).  So could you
> try
> booting with "apm=allow_ints" on the command line
> (or load
> the apm modules with "allow_ints=1"). and try again.
>  If
> this changes things, then we need to add the 8100 to
> the
> list of things we automatically allow interrupts
> for.
> 
> The default from the very beginning has been to
> disable interrupts
> and on most machines this works fine.  The option of
> leaving
> interrupts enabled was introduced when we discovered
> that the
> Thinkpads won't resume if you disable them ...
> 


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