Ubuntu 12.04 wireless does not detect networks

Question

I installed Ubuntu on a partition of my MacBook Pro. Wireless connections work fine when I switch to OSX, but the wireless networks are not even detected when I boot Ubuntu. I installed Wicd as a new network manager, but I'm still having the same problem. Ubuntu works on a wired connection though.

I have searched the web for a solution... similar questions have been asked but I have not been able to find a way to fix this problem.

Any help would be greatly appreciated.

Solution

Check if it is blocked by hardware of software:

sudo rfkill list all

Sample session:

sk@ubuntu:~$ sudo rfkill list all
0: wifi: Wireless LAN
Soft blocked: yes
Hard blocked: no
1: phy0: Wireless LAN
Soft blocked: yes
Hard blocked: no
sk@ubuntu:~$ sudo rfkill unblock all
sk@ubuntu:~$ sudo rfkill list all
0: wifi: Wireless LAN
Soft blocked: no
Hard blocked: no
1: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no

Comments

[Aaron]

Did you try hooking your computer up to Ethernet and checking additional drivers or jockey? Just search for jockey in the dash and it will come up.