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Re: ACPI suspend/resume

>>>>> "Erich" == Erich Schubert <erich@debian.org> writes:

>> Does anyone know how to make acpi suspend and resume my laptop?
Erich> Did you read any ACPI docs?  

What ACPI docs?  There's nothing in the kernel Documentation directory.
linux/Documentation/pm.txt doesn't talk about it at all; the acpid man
page doesn't mention it, nor does /usr/share/doc/acpid, nor does

And the ACPI4Linux pages have moved and links to them have been broken
since I got the laptop a couple of weeks ago.

Erich> echo 1 > /proc/acpi/sleep should
Erich> do the trick.  But this will *sleep* only.  ACPI does NOT
Erich> support suspend-to-disk, only suspend-to-ram (still needing
Erich> power!!)

echo 1 > /proc/acpi/sleep 

appears to do nothing.

echo 3 > /proc/acpi/sleep

puts the machine to sleep, but nothing I do seems to wake it up again?

cat /proc/acpi/sleep gives:
S0 S3 S4 S5 

Looking at drivers/acpi/ospm/system/sm_osl.c it doesn't look like the
code to handle states 3 or 4  exist yet... it's all #if 0 in the

Peter C

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