RE: sleep forever in ACPI mode S3

[Grover, Andrew]

> From: C. Scott Ananian [mailto:[e-mail]] 
> 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