I just got my new Alienware 18x and I have installed Ubunt 12.04 (12.04.3) on my system. But unfortunately my wired and wireless both are not working. I am posting here output of all the important commands; I will highly appreciate if someone can help me out. Thanks in advance.
lspci -nnk | grep -iEA3 "(network|wireless|ethernet)"
09:00.0 Ethernet controller [0200]: Atheros Communications Inc. Device [1969:e091] (rev 10)
Subsystem: Dell Device [1028:05ab]
0a:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS5116 PCI Express Card Reader [10ec:5209] (rev 01)
Subsystem: Dell Device [1028:05ab]
0b:00.0 Network controller [0280]: Broadcom Corporation Device [14e4:43b1] (rev 03)
Subsystem: AzureWave Device [1a3b:2b23]
ifconfig
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:65536 Metric:1
RX packets:304 errors:0 dropped:0 overruns:0 frame:0
TX packets:304 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:24144 (24.1 KB) TX bytes:24144 (24.1 KB)
sudo lshw -C network
*-network UNCLAIMED
description: Ethernet controller
product: Atheros Communications Inc.
vendor: Atheros Communications Inc.
physical id: 0
bus info: pci@0000:09:00.0
version: 10
width: 64 bits
clock: 33MHz
capabilities: pm pciexpress msi msix bus_master cap_list
configuration: latency=0
resources: memory:d3600000-d363ffff ioport:3000(size=128)
*-network UNCLAIMED
description: Network controller
product: Broadcom Corporation
vendor: Broadcom Corporation
physical id: 0
bus info: pci@0000:0b:00.0
version: 03
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list
configuration: latency=0
resources: memory:d3400000-d3407fff memory:d3200000-d33fffff
rfkill list all
no output
ifconfig eth0 up
eth0: ERROR while getting interface flags: No such device
ifconfig wlan0 up
wlan0: ERROR while getting interface flags: No such device
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