Unable to turn on wifi in Ubuntu 12.04 live boot

Actually this is kind of weird but I tried running backtrack r3 and Ubuntu 12.04 live on my laptop but both the times I was not able to switch on my Wireless using the toggle switch, in fact normally in windows it turns on a led on my laptop when wireless is on. But in ubuntu and backtrack this led never glows.

I tried running rfkill list

0: dell-wifi: Wireless LAN
    Soft blocked: no
    Hard blocked: no
1: dell-bluetooth: Bluetooth
    Soft blocked: no
    Hard blocked: no

But still It is not able to detect my home network and not even the led glows.

Details about the wireless card.

# lshw -C network

*-network UNCLAIMED
   description: Network controller
   product: Broadcom Corporation
   vendor: Broadcom Corporation
   physical id: 0
   bus info: pci@0000:02:00.0
   version: 01
   width: 64 bits
   clock: 33MHz
   capabilities: bus_master cap_list
   configuration: latency=0
   resources: memory:f1900000-f1907fff

# iwconfig

lo        no wireless extensions.

usb0      no wireless extensions.

Please help Thanks

codeomnitrix

Posted 2013-03-17T17:11:33.203

Reputation: 135

Might help if we knew the wireless card in question. – terdon – 2013-03-17T17:17:17.273

thanks for response. it is dell wireless 1704 802.11 b/g/n (2.4GHz) as appear in windows device manager. please tell me if any other info needed – codeomnitrix – 2013-03-17T18:48:52.977

Ca you find out the chipset? It should be listed if you run lspci from the linux live session. – terdon – 2013-03-17T18:54:33.217

Here is what it shows $ lspci | grep Network

02:00.0 Network controller: Broadcom Corporation Device 4365 (rev 01) – codeomnitrix – 2013-03-17T19:13:28.490

Unable to turn on wifi in Ubuntu 12.04 live boot

No answers