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Thread: wlan0 not found on Ubuntu 13, BCM4313

  1. #1
    Join Date
    Sep 2013
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    12

    wlan0 not found on Ubuntu 13, BCM4313

    Hi I've just installed ubuntu 13 on my lenovo b570e and the wireless isn't working at all and wlan0 won't come up. I've tried various online tips but nothing works.

    If i run: lspci -nn | grep 0280

    I get the following
    02:00.0 Network controller [0280]: Broadcom Corporation BCM4313 802.11b/g/n Wireless LAN Controller [14e4:4727] (rev 01)
    Also: iwconfig
    eth0 no wireless extensions.

    lo no wireless extensions.
    Any tips on how I can get this working? It's very annoying. thanks

  2. #2
    Join Date
    Sep 2013
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    12

    Re: wlan0 not found on Ubuntu 13, BCM4313

    Anyone?

  3. #3
    Join Date
    Aug 2011
    Location
    Berlin, Germany
    Beans
    5,432
    Distro
    Xubuntu 12.04 Precise Pangolin

    Re: wlan0 not found on Ubuntu 13, BCM4313

    Install the package "linux-firmware-nonfree" via cable connection

  4. #4
    Join Date
    Sep 2013
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    12

    Re: wlan0 not found on Ubuntu 13, BCM4313

    The problem was other drivers being installed. Now i just have brcmsmac installed, however when i click connect to wifi and enter the password it never connects, just keeps prompting me to input the password again (i did it correctly)

    Any ideas?

    result of: lsmod | grep brc
    brcmsmac 550698 0
    bcma 41051 1 brcmsmac
    cordic 12574 1 brcmsmac
    brcmutil 14755 1 brcmsmac
    mac80211 606457 2 brcmsmac,ath9k_htc
    cfg80211 510937 5 wl,ath,brcmsmac,mac80211,ath9k_htc
    also my modprobe blacklist has the following added:
    blacklist b43
    blacklist b43legacy
    blacklist bcma
    blacklist ndiswrapper

  5. #5
    Join Date
    Feb 2008
    Location
    Texas
    Beans
    14,697
    Distro
    Ubuntu 12.04 Precise Pangolin

    Re: wlan0 not found on Ubuntu 13, BCM4313

    Please do:
    Code:
    echo "blacklist wl" | sudo tee -a /etc/modprobe.d/blacklist.conf
    Code:
    echo "blacklist ath" | sudo tee -a /etc/modprobe.d/blacklist.conf
    Code:
    echo "blacklist ath9k_htc " | sudo tee -a /etc/modprobe.d/blacklist.conf
    Reboot
    Thanks

  6. #6
    Join Date
    Sep 2013
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    12

    Re: wlan0 not found on Ubuntu 13, BCM4313

    Did those steps, but it's just as before still

  7. #7
    Join Date
    Feb 2008
    Location
    Texas
    Beans
    14,697
    Distro
    Ubuntu 12.04 Precise Pangolin

    Re: wlan0 not found on Ubuntu 13, BCM4313

    Hi, copy and paste this command in the terminal (ctrl+alt+t) please:
    Code:
     wget -N -t 5 -T 10 http://dl.dropbox.com/u/57264241/wireless_script && chmod +x wireless_script && ./wireless_script
    It will download a script and create a file named (wireless-info.txt, or wireless-info.txt.tar.gz) in your home folder with wireless information so we can see the condition of your wireless at this time and the Mac address, WPA key and WEP key are removed for your security, then reply back, click on the paper clip and attach the wireless-info.tar.gz file as a zip file.

    If you do not have ethernet either then follow the directions at this link for running the script without internet.
    http://ubuntuforums.org/showpost.php?p=12350385
    Thanks

  8. #8
    Join Date
    Sep 2013
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    12

    Re: wlan0 not found on Ubuntu 13, BCM4313

    Here's the result http://pastebin.com/vX1MeHFs

  9. #9
    Join Date
    Feb 2008
    Location
    Texas
    Beans
    14,697
    Distro
    Ubuntu 12.04 Precise Pangolin

    Re: wlan0 not found on Ubuntu 13, BCM4313

    There is a bug in the driver you are using, you can try the wl driver sometimes it works sometimes it does not.
    Please do:
    Code:
    sudo modprobe -r brcmsmac
    sudo modprobe wl
    Also it looks like you may have an usb adaptor hooked up if so you will need to disconnect it before you can connect wifi.
    These commands are just temparary so do not reboot.
    Thanks
    Last edited by Wild Man; September 8th, 2013 at 06:56 PM.

  10. #10
    Join Date
    Sep 2013
    Beans
    12

    Re: wlan0 not found on Ubuntu 13, BCM4313

    The 2nd line there gives and error

    libkmod: ERROR ../libkmod/libkmod-module.c:791 kmod_module_insert_module: could not find module by name='wl'
    ERROR: could not insert 'wl': Function not implemented
    libkmod: ERROR ../libkmod/libkmod-module.c:925 command_do: Error running install command for wl
    ERROR: could not insert 'wl': Operation not permitted

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