I have a Dell Inspiron 1520, which has the Dell Wireless 1390 card (based on the BCM4311 chipset). During installation, Ubuntu 12.04 detected the device and installed the Broadcom STA driver. However, Unity is not showing an icon for the wireless device, so I am unable to connect to any networks. Any ideas what I need to do to get this working?
Edit: lspci -v gives the following info
0c:00.0 Network controller: Broadcom Corporation BCM4311 802.11b/g WLAN (rev 01) Subsystem: Dell Wireless 1390 WLAN Mini-Card Flags: bus master, fast devsel, latency 0, IRQ 17 Memory at fe8fc000 (32-bit, non-prefetchable) [size=16K] Capabilities: <access denied> Kernel driver in use: b43-pci-bridge Kernel modules: wl, ssb
/proc/net/dev does not contain any entries for the device, however (it just has lo and eth0 listed).