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Thread: WiFi always DOWN on Macbook Pro 2010 (7.1)

  1. #1
    Join Date
    Aug 2018
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    WiFi always DOWN on Macbook Pro 2010 (7.1)

    I'm having a really hard time getting WiFi work on my Macbook Pro 2010 (7.1) in Ubuntu.
    It used to work for many years, then I messed up something and was never able to bring it back to life. I tried using a fresh installation on the internal HDD and the Live USB to no avail.

    The card is:

    Code:
    :~$ lspci -nn |grep -i bcm
    02:00.0 Network controller [0280]: Broadcom Limited BCM4322 802.11a/b/g/n Wireless LAN Controller [14e4:432b] (rev 01)
    On a fresh install, I'd get the firmware:

    Code:
    :~$ sudo apt-get install firmware-b43-installer
    Make sure the modules are removed prior to inserting b43:

    Code:
    :~$ sudo modprobe -r b43 bcma
    :~$ sudo modprobe -r brcmsmac bcma
    :~$ sudo modprobe -r ssb
    :~$ sudo modprobe b43
    The WiFi is not blocked:

    Code:
    :~$ rfkill
    ID TYPE      DEVICE      SOFT      HARD
     1 bluetooth hci0   unblocked unblocked
     2 wlan      phy0   unblocked unblocked
    However the state of wlan0 is always DOWN:

    Code:
    :~$ ip a show wlan0
    4: wlan0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN group default qlen 1000
        link/ether f8:1e:df:ed:bd:8a brd ff:ff:ff:ff:ff:ff
    :~$ cat /sys/class/net/wlan0/operstate
    down
    
    This won't change no matter what I try to do:

    Code:
    :~$ sudo nmcli radio wifi on
    :~$ sudo ifconfig wlan0 up
    I still get
    Code:
    :~$ ip a show wlan0
    4: wlan0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN group default qlen 1000
        link/ether f8:1e:df:ed:bd:8a brd ff:ff:ff:ff:ff:ff
    :~$ cat /sys/class/net/wlan0/operstate
    down
    
    The WiFi card used to work for me in the past. It still works, when I boot to Mac OS X. I just don't seem to be able to get it from the DOWN state in Ubuntu. As far as I am aware, there is no hardware key on the Macbook Pro 2010, which could disable the card. Also, I tried Debian 9 on the computer instead of Ubuntu, to the same effect.

    Anyone with ideas where to start? Could it be something to do with power management?

    Thanks for any ideas and suggestions.

  2. #2
    Join Date
    Nov 2012
    Location
    Halloween Town
    Beans
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    Xubuntu Development Release

    Re: WiFi always DOWN on Macbook Pro 2010 (7.1)

    Thread moved to Apple Hardware Users.

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