I just installed Ubuntu 9.04 on a brand new Acer Extensa 5635Z laptop, but ethernet networking does't work (wireless doesn't work either, but I'd be happy with ethernet for now).

eth0 isn't listed in /etc/network/interfaces:

$ cat /etc/network/interfaces 
auto lo
iface lo inet loopback

lshw does show the nic, but I can't make much sense out of the information:

$ sudo lshw -class network -sanitize
  *-network DISABLED
       description: Wireless interface
       product: AR928X Wireless Network Adapter (PCI-Express)
       vendor: Atheros Communications Inc.
       physical id: 0
       bus info: pci@0000:07:00.0
       logical name: wmaster0
       version: 01
       serial: [REMOVED]
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress msix bus_master cap_list logical ethernet physical wireless
       configuration: broadcast=yes driver=ath9k latency=0 module=ath9k multicast=yes wireless=IEEE 802.11bgn
  *-network UNCLAIMED
       description: Ethernet controller
       product: Attansic Technology Corp.
       vendor: Attansic Technology Corp.
       physical id: 0
       bus info: pci@0000:09:00.0
       version: c0
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress vpd cap_list
       configuration: latency=0
  *-network DISABLED
       description: Ethernet interface
       physical id: 1
       logical name: pan0
       serial: [REMOVED]
       capabilities: ethernet physical
       configuration: broadcast=yes driver=bridge driverversion=2.3 firmware=N/A link=yes multicast=yes

Thanks for your help!

2 Answers 2


First off, Ubuntu 9.04 does not currently support the Atheros AR8121/AR8113/AR8114/AR8131/AR8132 PCI-E Ethernet NICs.

To add support, I compiled and installed a kernel module:

  1. Download AR81Family-linux-v1.0.0.10.tar.gz from http://partner.atheros.com/Drivers.aspx
  2. tar -xzvf AR813X-linux-v1.0.0.9.tar.gz
  3. cd src
  4. make
  5. sudo make install
  6. sudo insmod atl1e.ko
  7. service networking restart (wasn't necessary in my case)

It will probably be easier to get your wireless working first then see if you can update over that, these instructions

 Re: Atheros ar928x wlan HELP

sudo su 
enter your password
echo 0 > /sys/devices/platform/asus-laptop/bluetooth
echo 1 > /sys/devices/platform/asus-laptop/wlan

AKA space_cadet in #ubuntu and ##windows
Ubuntu user #23413 

from here http://ubuntuforums.org/showthread.php?t=930667 may help

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