Problems with Ubuntu 12.04 Networking on Latitude D620

[Michael Butash]

Looks like you're not getting actual link - is the link up?

sudo mii-tool eth0

should see:

eth0: negotiated 1000baseT-FD flow-control, link ok

Should also see blinky lights on the nic.

Do you use a dock with it?  They sometimes switch between dock and 
build-in causing one or the other not to work or link, even sometimes 
getting stuck, but that's usually a driver/os thing.

-mb


On 06/14/2012 05:20 PM, Mark Phillips wrote:
> I installed Ubuntu 12.04 on a Dell Latitude D620. I didn't expect any
> issues based on googling this laptop and Linux. However, I cannot get
> Ethernet or wifi to work.
>
> lspci shows the correct hardware
>
> Ethernet controller; Broadcom Corporation NetXtreme BCM5752 Gigibit
> Ethernet PCI Express (rev 2)
> Network controller: Broadcom Corporation BCM4311 802.11b/g WLAN (rev 01)
>
> I went into Network Connections and added a Wired connection and gave it
> a name and selected the MAc address for eth0 (in the drop down list),
> and selected automatic (DHCP) as the method for iP4
>
> I looked at /etc/network/interfaces
> auto lo
> iface lo inet loopback
>
> so I tried adding
>
> auto eth0
>
> but no luck. grep -i eth /var/log/syslog gives
>
> Network Manager[2029]: <info> (eth0): new Ethernet device (driver:'tg3'
> ifindex: 2)
> Network Manager[2029]: <info> (eth0): exported as
> /org/freedesktop/NetworkManager/Devices/0
> Network Manager[2029]: <info> (eth0): mow managed
> Network Manager[2029]: <info> (eth0): device state change: unmanaged ->
> unavailable (reason 'managed') [10 2 0 2]
> Network Manager[2029]: <info> (eth0): bringing up device
> Network Manager[2029]: <info> (eth0): preparing device
> Network Manager[2029]: <info> (eth0): deactivating device (reason
> 'managed') [2]
> kernel: [1815.448547] ADDRCONF(NETDEV_UP): eth0: link is not ready
> kernel: [1815.449321] ADDRCONF(NETDEV_UP): eth0: link is not ready
>
> I looked at some forum posts on how to fix this, and the best I found
> was to edit NetworkManager.conf and set managed=true (it came false out
> of the box). That did not help.
>
> Thanks for any other suggestions you may have!
>
> Mark
>
>
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