11.10 server 64bit WOL (Wake on LAN) do not work

1. Hardware: Dell Precision T3400 workstation with NIC BCM5754

2. Problem isolate:
two disks installed with Windows 7 and Ubuntu 11.10
Shutdown this workstation by Windows7, after sending the magic packet, WOL works
Shutdown this workstation by Ubuntu11.10, after sending the magic packet, WOL does NOT work
So, BIOS setting is OK, WOL sever is OK

3. Detail Information:
   a. result of ethtool eth0
   Settings for eth0:
        Supported ports: [ TP ]
        Supported link modes: 10baseT/Half 10baseT/Full
                                100baseT/Half 100baseT/Full
                                1000baseT/Half 1000baseT/Full
        Supports auto-negotiation: Yes
        Advertised link modes: 10baseT/Half 10baseT/Full
                                100baseT/Half 100baseT/Full
                                1000baseT/Half 1000baseT/Full
        Advertised pause frame use: Symmetric
        Advertised auto-negotiation: Yes
        Speed: 1000Mb/s
        Duplex: Full
        Port: Twisted Pair
        PHYAD: 1
        Transceiver: internal
        Auto-negotiation: on
        MDI-X: Unknown
        Supports Wake-on: g
        Wake-on: g
        Current message level: 0x000000ff (255)
                               drv probe link timer ifdown ifup rx_err tx_err

        b. Result Wakeup PCI device:
Device S-state Status Sysfs node
VBTN S4 *enabled
PCI0 S5 *disabled no-bus:pci0000:00
PCI4 S5 *enabled pci:0000:00:1e.0
PCI3 S5 *disabled
PCI1 S5 *disabled pci:0000:00:01.0
PCI6 S5 *disabled pci:0000:00:1c.5
USB0 S3 *disabled pci:0000:00:1d.0
USB1 S3 *disabled pci:0000:00:1d.1
USB2 S3 *disabled pci:0000:00:1d.2
USB3 S3 *disabled pci:0000:00:1a.0
USB4 S3 *disabled pci:0000:00:1a.1
USB5 S3 *disabled pci:0000:00:1a.2

       c. List PCI device
sudo lspci -k
04:00.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5754 Gigabit Ethernet PCI Express (rev 02)
        Subsystem: Dell Precision T3400
        Kernel driver in use: tg3
        Kernel modules: tg3