After having upgraded my Ubuntu from 12.10 to 13.04 the wireless device has stopped working. It simply does not show up in the panel nor in the network settings.
$ lspci -nn -d 14e4: 02:00.0 Network controller : Broadcom Corporation BCM4321 802.11a/b/g/n [14e4:4328] (rev 03)
I have enabled the Broadcom driver under addtional drivers. Also I have run
$ sudo apt-get install firmware-b43-installer b43-fwcutter
without error messages... However, when I run
$ sudo modprobe b43
my wifi shows up.
Now, my questions are:
- What does
- How to enable modprobe on startup automatically?
- Is this legit or a workaround that may lead to more trouble in future?