Linux Wifi Troubleshooting on Macbook Pro

1. If the wl driver loads but doesn't seem to do anything: the ssb module may be the cause. Sometimes blacklisting ssb may not be enough to prevent it from loading and it loads anyway. (This is mostly seen on Ubuntu/Debian systems). From HERE

Check to see if ssb, wl or b43 is loaded:

CODE: SELECT ALL

lsmod  | grep "b43\|ssb\|wl"

If any of these are installed, remove them:

CODE: SELECT ALL

sudo rmmod b43
sudo rmmod ssb
sudo rmmod wl

Back up the current boot ramfs and generate a new one.

CODE: SELECT ALL

sudo cp /boot/initrd.img-`uname -r`  /path/to/somewheresafe
sudo update-initramfs -u

reboot