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Thread: A plethora of problems with the infamous Broadcom wifi drivers.

  1. #1
    Join Date
    Nov 2013
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    Angry A plethora of problems with the infamous Broadcom wifi drivers.

    Where to start.... We have multiple types of computers that do not have the wireless preinstalled when we install Ubuntu, they all are Broadcom variants. Most have Ubuntu 12.04 on them. Some have Lubuntu or Debian but still do not work. I have tried to follow the guide here (https://help.ubuntu.com/community/Wi...Driver/bcm43xx) and many fall under the "wl" category. When we go to add from additional drivers they start to install then we get a black screen with mostly gibberish text and that jockey backend crashed we reboot it and the driver is not installed. I have tried many other "solutions" on this very site and elsewhere on the internet but nothing has worked on any of our models yet. Some are even macs too. Some of these answers are too complicated, not well enough explained, or do not work. I was able to figure out the exact model and chip of all the wireless cards but the above guide only crashes all of them or just doesn't work. Can someone please provide a more definitive answer. If we can only work with even one model so we can get an idea this would be very helpful. Thank you in advance.

  2. #2
    Join Date
    Apr 2012
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    Re: A plethora of problems with the infamous Broadcom wifi drivers.

    Hi, how may machines total? are they currently "networked" together?
    and THE most important question...can you access the internet with the
    ethernet cable? getting one machine going will not get them all going, It will
    be different for each broadcom card type and computer type.
    On the MAC machines i would suggest this..
    from a Wired connection conneted to the internet..
    Code:
    sudo apt-get remove --purge bcmwl-kernel-source
    sudo apt-get install linux-firmware-nonfree
    sudo modprobe b43
    the other machines will require a query as to card type.
    please post..for each machine..the output of.
    Code:
    lspci -nnk | grep -iA3 net
    thanks.
    Last edited by Hadaka; November 6th, 2013 at 10:34 PM.
    Craving anchovy, herring and squid pizza.....with clam sauce

  3. #3
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    Nov 2013
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    Re: A plethora of problems with the infamous Broadcom wifi drivers.

    Thank you i will try the purge commands but there are many different types of computers. Several different types of Macs and HP Mini 1000 and several other PC types off the top of my head. I am not at work today but i would be here all day trying to post all of the different types. I would like to just at least figure out 1 or 2 in one scenario and try to go from there

  4. #4
    Join Date
    Feb 2008
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    Texas
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    Distro
    Ubuntu 14.04 Trusty Tahr

    Re: A plethora of problems with the infamous Broadcom wifi drivers.

    Please keep on computer per thread or make sure to only work with one at a time so as not to confuse people.
    Thanks

  5. #5
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    Nov 2013
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    Re: A plethora of problems with the infamous Broadcom wifi drivers.

    I am certainly not going to go through all of them here at once and i will specify whatever model it is that i am talking about.

  6. #6
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    Re: A plethora of problems with the infamous Broadcom wifi drivers.

    OK, regarding this particular MAC it is a IMAC A5 with the BCM4321 card. It does have an Ethernet port so i will try your first suggestion, once this is working i would like to move onto another machine. UPDATE: I followed your instructions, it recognizes the wifi adapter now in the network manager. However it does not seem to scan for wireless networks, no available networks show up in the list but if i enter the name of the network manually and with the password it is able to connect. So how do i get it to scan? I have also rebooted,

  7. #7
    Join Date
    Apr 2012
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    Re: A plethora of problems with the infamous Broadcom wifi drivers.

    Hi, to scan please do..
    Code:
    sudo iwlist wlan0 scan
    * or eth1 or whatever it is.
    also please post the output of..
    Code:
    cat etc/network/interfaces
    this must be done on EVERY machine..to see HOW
    you are managing your network,with the /etc/network file or network manager.
    There are other things we need to cover,but for now..let's see what you have.
    thanks.
    Craving anchovy, herring and squid pizza.....with clam sauce

  8. #8
    Join Date
    Nov 2013
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    23

    Re: A plethora of problems with the infamous Broadcom wifi drivers.

    Doing the scan once returned

    "No results"

    I ran it a second time and i got output, i would like to not have to do that every time i want to connect to to a wifi network.

    Code:
    root@iMac:~# iwlist wlan0 scan
    wlan0     Scan completed :
              Cell 01 - Address: 00:24:B2:13:AB:D2
                        Channel:1
                        Frequency:2.412 GHz (Channel 1)
                        Quality=63/70  Signal level=-47 dBm 
                        Encryption key:on
                        ESSID:"NETGEAR"
                        Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
                                  24 Mb/s; 36 Mb/s; 54 Mb/s
                        Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 48 Mb/s
                        Mode:Master
                        Extra:tsf=00000023282297bf
                        Extra: Last beacon: 16708ms ago
                        IE: Unknown: 00074E455447454152
                        IE: Unknown: 010882848B962430486C
                        IE: Unknown: 030101
                        IE: Unknown: 2A0100
                        IE: Unknown: 2F0100
                        IE: IEEE 802.11i/WPA2 Version 1
                            Group Cipher : CCMP
                            Pairwise Ciphers (1) : CCMP
                            Authentication Suites (1) : PSK
                        IE: Unknown: 32040C121860
                        IE: Unknown: DD090010180200F0000000
                        IE: Unknown: DD180050F2020101800003A4000027A4000042435E0062322F00
    
    root@iMac:~# cat /etc/network/interfaces
    auto lo
    iface lo inet loopback
    Last edited by jstratta; November 8th, 2013 at 04:07 PM. Reason: cuz

  9. #9
    Join Date
    Apr 2012
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    Re: A plethora of problems with the infamous Broadcom wifi drivers.

    ok, please post
    Code:
    cat /etc/network/interfaces
    its important that you read and post the commands
    i request to avoid confusion with multiple machines.
    thanks.
    Craving anchovy, herring and squid pizza.....with clam sauce

  10. #10
    Join Date
    Nov 2013
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    23

    Re: A plethora of problems with the infamous Broadcom wifi drivers.

    I did read. I posted the commands you requested. Its at the bottom of the code.

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