Wireless not working after installation

I've installed the latest ubuntu release (10.4) on my HP mini 110, the installation went smoothly but I don't have any wireless connection. (it says wireless disabled)

I installed ubuntu side by side with an already existing windows XP, on windows wireless works fine.

I tried both ubuntu desktop edition and netbook remix, but same problem on these two modes.

It happens both when I run ubuntu from the USB and when it's installed on the hard-drive.

I found many articles about the broadcom network card issues this netbook has, but they all suggest to run:

sudo apt-get update
sudo apt-get --reinstall install bcmwl-kernel-source
sudo reboot

(e.g. this official guide)

however this doesn't seem to solve my problem.

Solution 1:

Let me mention the simple answer that you have probably tried for future seekers. This has worked for me on my last two installs involving broadcom wireless drivers. It does however require a wired connection.

Start up System > Administration > Hardware Drivers
Let it build the database, then see if there is a Broadcom driver available that just needs to be "activated". If so do it and see if it works.

On previous versions I always got them working using a variety of complex fixes and commands. I've been pleased that the method listed here has worked very well recently.

Solution 2:

I had this problem just two days ago.

http://www.broadcom.com/docs/linux_sta/README.txt

First check you have the affected card:

sudo lspci -n | grep 14e4

Then check that you have the modules that are breaking your installation:

sudo lsmod  | grep "b43\|ssb\|wl"

(b43 and ssb are the offenders)

Then edit the kernel module blacklist file:

sudo gedit /etc/modprobe.d/blacklist.conf 

and add the following to the end:

blacklist ssb
blacklist b43

I then rebooted, re-ran the Additional Hardware tool (in the Administration menu) and it installed correctly and worked perfectly.