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SubjectRE: sleep forever in ACPI mode S3
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From
> From: C. Scott Ananian [mailto:cananian@lesser-magoo.lcs.mit.edu] 
> echo 3 > /proc/acpi/sleep
> appears to work correctly on my IBM Thinkpad X20 -- except that it's
> impossible to wake the machine back up.
> echo 1 > /proc/acpi/sleep
> has a similar problem -- ordinary keypresses don't wake the
> machine --
> but at least in this case the "power button" will bring the
> machine back.
> [neither the lid nor the sleep button do, though.]
>
> Is this a known problem? What keypresses are *supposed* to wake the
> machine? I looked through the code, but it looks like we
> punt off to the
> ACPI firmware to do the actual sleep -- can anyone enlighten me on the
> intended mechanism behind 'wake-from-sleep'?

Does it start to come back but then not make it, or is it just
unrevivifiable?

In any case, sleep/resume is a work in progress that won't work reliably
in the near-term.

Regards -- Andy
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