I am running 11.04, no remix. After installation, I could use wireless networks, but not ethernet. When I click on the connections menu item, it says

Wired Network

disconnected

How do I fix this?

Here is the ethernet portion of ifconfig:

eth0      Link encap:Ethernet  HWaddr 00:16:36:86:f3:43  

      UP BROADCAST MULTICAST  MTU:1500  Metric:1

      RX packets:0 errors:0 dropped:0 overruns:0 frame:0

      TX packets:0 errors:0 dropped:0 overruns:0 carrier:0

      collisions:0 txqueuelen:1000 

      RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

      Interrupt:17

And the result of lspci:

00:00.0 Host bridge: Intel Corporation Mobile 945GM/PM/GMS, 943/940GML and 945GT Express Memory Controller Hub (rev 03)

00:02.0 VGA compatible controller: Intel Corporation Mobile 945GM/GMS, 943/940GML Express Integrated Graphics Controller (rev 03)

00:02.1 Display controller: Intel Corporation Mobile 945GM/GMS/GME, 943/940GML Express Integrated Graphics Controller (rev 03)

00:1b.0 Audio device: Intel Corporation N10/ICH 7 Family High Definition Audio Controller (rev 01)

00:1c.0 PCI bridge: Intel Corporation N10/ICH 7 Family PCI Express Port 1 (rev 01)

00:1d.0 USB Controller: Intel Corporation N10/ICH 7 Family USB UHCI Controller #1 (rev 01)

00:1d.1 USB Controller: Intel Corporation N10/ICH 7 Family USB UHCI Controller #2 (rev 01)

00:1d.2 USB Controller: Intel Corporation N10/ICH 7 Family USB UHCI Controller #3 (rev 01)

00:1d.3 USB Controller: Intel Corporation N10/ICH 7 Family USB UHCI Controller #4 (rev 01)

00:1d.7 USB Controller: Intel Corporation N10/ICH 7 Family USB2 EHCI Controller (rev 01)

00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev e1)

00:1f.0 ISA bridge: Intel Corporation 82801GBM (ICH7-M) LPC Interface Bridge (rev 01)

00:1f.1 IDE interface: Intel Corporation 82801G (ICH7 Family) IDE Controller (rev 01)

02:00.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5788 Gigabit Ethernet (rev 03)

02:09.0 CardBus bridge: Texas Instruments PCIxx12 Cardbus Controller

02:09.1 FireWire (IEEE 1394): Texas Instruments PCIxx12 OHCI Compliant IEEE 1394 Host Controller

02:09.4 Communication controller: Texas Instruments PCIxx12 GemCore based SmartCard controller

08:00.0 Network controller: Intel Corporation PRO/Wireless 3945ABG [Golan] Net

My /etc/network/interfaces looks like this:

auto lo

iface lo inet loopback



auto eth0

iface eth0 inet dhcp

And I get no output from sudo ifconfig eth0 up.

Output from nm-applet:

** (nm-applet:1824): DEBUG: old state indicates that this was not a disconnect 0

** (nm-applet:1824): DEBUG: old state indicates that this was not a disconnect 0

On second run of nm-applet:

** (nm-applet:2752): DEBUG: old state indicates that this was not a disconnect 0

** (nm-applet:2752): DEBUG: old state indicates that this was not a disconnect 0



** (nm-applet:2752): WARNING **: _nm_object_get_property: Error getting 'WpaFlags' for /org/freedesktop/NetworkManager/AccessPoint/10: (19) Method "Get" with signature "ss" on interface "org.freedesktop.DBus.Properties" doesn't exist







** (nm-applet:2752): WARNING **: _nm_object_get_property: Error getting 'RsnFlags' for /org/freedesktop/NetworkManager/AccessPoint/10: (19) Method "Get" with signature "ss" on interface "org.freedesktop.DBus.Properties" doesn't exist







** (nm-applet:2752): WARNING **: Error in getting active connection 'Vpn' property: (19) Method "Get" with signature "ss" on interface "org.freedesktop.DBus.Properties" doesn't exist





** (nm-applet:2752): WARNING **: _nm_object_array_demarshal: couldn't create object for /org/freedesktop/NetworkManager/ActiveConnection/0

** Message: <info>  No keyring secrets found for Auto HeyJude88/802-11-wireless-security; asking user.





** (nm-applet:2752): WARNING **: applet.c.2882 (applet_settings_new_secrets_requested_cb): couldn't find details for connection

** Message: <info>  No keyring secrets found for Auto HeyJude88/802-11-wireless-security; asking user.



** (nm-applet:2752): DEBUG: going for offline with icon: notification-network-wireless-disconnected

** (nm-applet:2752): DEBUG: foo_client_state_changed_cb

** (nm-applet:2752): DEBUG: foo_client_state_changed_cb

** (nm-applet:2752): DEBUG: foo_client_state_changed_cb

** (nm-applet:2752): DEBUG: going for offline with icon: notification-network-wireless-disconnected

** (nm-applet:2752): DEBUG: foo_client_state_changed_cb

Here's more to ifconfig:

wlan0     Link encap:Ethernet  HWaddr 00:18:de:31:70:20  

          inet addr:172.16.6.210  Bcast:172.16.6.255  Mask:255.255.255.0

          inet6 addr: fe80::218:deff:fe31:7020/64 Scope:Link

          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

          RX packets:2384 errors:0 dropped:0 overruns:0 frame:0

          TX packets:1367 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:1000 

          RX bytes:514654 (514.6 KB)  TX bytes:215138 (215.1 KB)