Most linux boxes I have used cannot wol unless their /proc/acpi entries
are fixed-up in addition of correct Bios and ethtool settings. On this
box:
Code:
--------------------
cat /proc/acpi/wakeup
Device S-state Status Sysfs node
P0P2 S4 enabled
PS2K S4 disabled pnp:00:0b
USB0 S4 disabled pci:0000:00:1d.0
USB1 S4 disabled pci:0000:00:1d.1
USB2 S4 disabled pci:0000:00:1d.2
USB3 S4 disabled pci:0000:00:1d.3
EUSB S4 disabled pci:0000:00:1d.7
MC97 S4 disabled
P0P4 S4 enabled pci:0000:00:1c.0
P0P5 S4 enabled
P0P6 S4 enabled pci:0000:00:1c.2
P0P7 S4 enabled pci:0000:00:1c.3
P0P8 S4 enabled
P0P9 S4 enabled
P0P3 S4 disabled pci:0000:00:1e.0
--------------------
See the "enabled" devices ? This is because...
Code:
--------------------
lspci -tv | grep -B5 -i ether
-[0000:00]-+-00.0 Intel Corporation Mobile 945GM/PM/GMS, 943/940GML and
945GT Express Memory Controller Hub
+-02.0 Intel Corporation Mobile 945GM/GMS, 943/940GML Express Integrated
Graphics Controller
+-1c.0-[0000:03]--
+-1c.2-[0000:02]--+-00.0 JMicron Technologies, Inc. JMicron 20360/20363 AHCI
Controller
| \-00.1 JMicron Technologies, Inc. JMicron 20360/20363 AHCI
Controller
+-1c.3-[0000:01]----00.0 Intel Corporation 82573L Gigabit Ethernet Controller
--------------------
... the integrated NIC is connected to the PCI 0 bus. Its ACPI name is
P0P7 (totally hardware dependant!)
Hence in my boot scripts (rc.local for example) I have added the
following code snippet:
Code:
--------------------
# Enable PME events (Wake-on-PCI) if they are disabled
# Correct BIOS setting needed. Ethtool needed too
if (/bin/grep P0P7 /proc/acpi/wakeup | /bin/grep disabled 2>&1 >> /dev/null)
; then
/bin/echo -n P0P7 > /proc/acpi/wakeup
fi
--------------------
And in the BIOS I have "WOL" as well as "wake from PCI devices"
selected.
HTH
--
epoch1970
------------------------------------------------------------------------
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