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Possible Duplicate:
How can I get Broadcom BCM4311 Wireless working?

I installed ubuntu 10.11 on a Dell Inspiron E1505. The Broadcom driver is active, but the Wireless card isn't being detected. There is no MAC address in the Wireless Network Configuration. Ifconfig only shows the Wired NIC. Any suggestions?

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marked as duplicate by James Mar 30 '12 at 13:56

This question was marked as an exact duplicate of an existing question.

Sorry, I meant ubuntu 11.10. – Jason Nov 17 '11 at 18:24
Possible duplicate -… – James Mar 30 '12 at 13:56

From nfolamp blog:

I have an HP laptop model nx6325 with a Broadcom BCM4311 wireless card. After installing Ubuntu 11.10, I find that my wireless doesn’t work. The reason, Ubuntu detects the wireless but then loads the incorrect driver for this card.

I use the lspci command to display the details about my hardware. It will display all of your PCI connected hardware. I edited the output to show only the relevant information. The important information here for matching your hardware with mine is this indentifier [14e4:4312].

$ sudo lspci -v   
30:00.0 Network controller: Broadcom Corporation
BCM4311 802.11a/b/g (rev 01)
      Subsystem: Hewlett-Packard Company Broadcom 802.11a/b/g WLAN
     Flags: bus master, fast devsel, latency 0, IRQ 18
     Memory at c8000000 (32-bit, non-prefetchable) [size=16K]
     Capabilities: [40] Power Management version 2
     Capabilities: [58] MSI: Enable- Count=1/1 Maskable- 64bit-
     Capabilities: [d0] Express Legacy Endpoint, MSI 00
     Capabilities: [100] Advanced Error Reporting
     Capabilities: [13c] Virtual Channel
     Kernel driver in use: b43-pci-bridge
     Kernel modules: ssb   

$ sudo lspci -nn 
30:00.0 Network controller [0280]:  Broadcom Corporation BCM4311 802.11a/b/g
[14e4:4312] (rev 01)

The Solution

I am going to install the correct driver for this wireless card. Then I will remove the “incorrect” driver (bcmwl) which Ubuntu installed by default.

$ sudo apt-get update
$ sudo apt-get install firmware-b43-installer
$ sudo apt-get remove bcmwl-kernel-source
$ sudo reboot

Hopefully you found this useful.

If you have this same type of wireless chip in your laptop, these instructions might also work for you.

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