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SubjectRe: APM support with the Linux 2.1.108 kernel

On Tue, 14 Jul 1998, Daniel Pittman wrote:

> I have been using the 2.1.108 kernel without any patches on my laptop,
> and have had a new problem with the APM support - one not present in the
> 2.0.34 kernel.
>
> Unfortuantly, I could not tell you if this is new to the 2.1.x series,
> as I have just gone over to using them. In any case, the problem is
> that when APM is configured active, and the Power down on Halt option is
> enabled, the laptop no longer powers off. The shutdown operation
> completes successfully, and there are no other problems in this regard;
> it simply does not power off any longer.

This is actually a user-land change to the shutdown program. Upgrade
'shutdown' and use the '-o' option to power-off on shutdown.

> Additionally, the laptop has not does a successful suspend to disk under
> Linux at any point, but I need to do more checking before I know that is
> a bug - unless anyone can enlighten me...

This is a known problem that I've attempted to track down many times over
the past year and a half, without success. I'm out of possible causes,
and so far I haven't been successful in tracing my BIOS's APM code back to
any type of evil instruction. <sigh> *BSD is said to work; I wasn't able
to find any significant differences between the OpenBSD apm code and ours.
--Scott
@ @
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C. Scott Ananian: cananian@lcs.mit.edu / Declare the Truth boldly and
Laboratory for Computer Science/Crypto / without hindrance.
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