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Thread: 12.10 no wireless with BCM4312

  1. #1
    Join Date
    Jan 2008
    Indiana, USA
    Ubuntu 13.04 Raring Ringtail

    12.10 no wireless with BCM4312

    My primary issue is that my wireless does not work after I installed 12.10.

    The output to rfkill list all:

    5: hci0: Bluetooth
    Soft blocked: no
        Hard blocked: no
    The output to lshw -class network is:

       description: Ethernet interface
       product: 88E8040 PCI-E Fast Ethernet Controller
       vendor: Marvell Technology Group Ltd.
       physical id: 0
       bus info: pci@0000:09:00.0
       logical name: eth0
       version: 12
       serial: 00:21:9b:d6:46:51
       size: 100Mbit/s
       capacity: 100Mbit/s
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=sky2 driverversion=1.30 duplex=full ip= latency=0 link=yes multicast=yes port=twisted pair speed=100Mbit/s
       resources: irq:44 memory:fe8fc000-fe8fffff ioport:de00(size=256)    
       description: Network controller
       product: BCM4312 802.11b/g LP-PHY
       vendor: Broadcom Corporation
       physical id: 0
       bus info: pci@0000:0b:00.0
       version: 01
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list
       configuration: driver=b43-pci-bridge latency=0
       resources: irq:17 memory:fe7fc000-fe7fffff
    The output to lspci -nn for the pertinent information is:
    0b:00.0 Network controller [0280]: Broadcom Corporation BCM4312 802.11b/g LP-PHY [14e4:4315] (rev 01)
    Thus, it seems the solution would be to run:

    sudo apt-get install linux-headers-generic
    sudo apt-get install --reinstall bcmwl-kernel-source
    sudo modprobe wl
    However, here's the kicker, I don't have access to an ethernet connection right now. How can I install the necessary drivers through another computer? Is it possible to set up an ICS with Vista to download what I need?

  2. #2
    Join Date
    Aug 2011
    North Carolina, USA
    Ubuntu 11.04 Natty Narwhal

    Re: 12.10 no wireless with BCM4312

    I don't know if you ever figured out how to download the files to restore your wireless adapter or not, but your suggestion fixed mine.

    In my case, I used a USB WLAN adapter that IS recognized to install the necessary files.

    Thanks for the tip!

    73 DE N4RPS


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