[PLUG] Resolved: e100 wake on lan not working

[Eric Wilhelm]

# from Lucas Nussbaum
# on Sunday 20 May 2007 09:28 pm:

>What's the content of /proc/acpi/wakeup ?

Wow!  That's exactly what I needed to know.  Thanks.

  $ cat /proc/acpi/wakeup
  Device  Sleep state     Status
  PCI1       4            disabled
  ...

So, once I do `echo PCI1 > /proc/acpi/wakeup`, it works from S3.

Recapping, this is what I've had to do.  It would have been great to 
have found this under the search "linux wake on lan howto" about 5 days 
ago.

  1.  Bios must be enabled for wol.
  2.  ethtool -s eth0 wol g
  3.  echo PCI1 > /proc/acpi/wakeup
  4.  echo mem > /sys/power/state
  5.  from another machine: `etherwake $mac_address`

Notes:

1.  Maybe the bios doesn't need to be enabled.  I dunno.  This board's 
bios/behavior is very frustrating -- the nic stays lit even if I set 
"onboard lan: disabled" in the bios!  :-/

2.  Just need to ensure that `ethtool eth0` says: "Supports Wake-on: g"

3.  The echo just toggles the value, so the following is more correct.  
Now, I just need to choose the "correct" place to put it in the init 
scripts.
  grep 'PCI1.*enabled' < /proc/acpi/wakeup >/dev/null || \
    echo PCI1  > /proc/acpi/wakeup

4.  I can't use /etc/acpi/sleep.sh on debian etch (at least not with the 
kernel from linux-image-2.6.18-4-686.)  It appears to have something to 
do with ifdown or rmmod (though manual ifdown and/or rmmod and str works 
fine), but I'm not going to dig around in that right now.

Also note, I still cannot wol from suspend-to-disk or poweroff with this 
board.  That *sort of* aligns with the MB docs, which say "S5 is only 
supported with WOL cable" and "onboard lan uses PME not WOL" -- except 
(ugh) putting the nic in legacy mode from the boot agent allows wol 
from cold power off, so hmmph.  In any case, what I really wanted was 
wake from ram and I got it so I'm happy.  Possibly S5 is fixed in 
2.6.21 or something -- if I get around to that I'll let you know.

Thanks to all for the help.

Hopefully google will index this, but it would really help to have some 
recent, easy-to-find documentation regarding the steps required for 
"linux wake-on-lan / driver / acpi / ethtool".  The scyld page appears 
to have been down for some time now and most everything else I found 
was at least a couple years old.

Thanks,
Eric
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