I had similar issues with a D630. and it looks like 12.04 was not
installing the right drivers for the broadcom wireless.
http://ubuntuforums.org/showthread.php?t=1604868&page=58
they detail some easy steps to resolve. just plug in via Ethernet for
a few min and bingo.
just verify you have the same wireless device
From the tail end of my lspci output:
09:00.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5755M
Gigabit Ethernet PCI Express (rev 02)
0c:00.0 Network controller: Broadcom Corporation BCM4311 802.11b/g WLAN (rev 01)
On Thu, Jun 14, 2012 at 5:20 PM, Mark Phillips
<
mark@phillipsmarketing.biz> 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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--
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rolling over and going back to sleep after you hit the snooze button.
Stephen
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