Wifi fix in Ubuntu 12.04/12.10/13.04 (Broadcom 4313) – 3.4/3.8 kernel

Kishore's personnel blog

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3.2 Kernel

Had this wifi issue where my error was “wireless is disabled by hardware switch”. In my HP dv6, F12 is the wifi hardware switch. I pressed the switch F12 with no effect. There was nothing in the bios to fix as well. Stumbled across this link, and it worked like a charm.

Now my F12 switch works as intended. Here is the link for kernel supported broadcom wireless driver

3.4 Kernel

The reason for the upgrade ? Why 3.4 ? I use Nvidia 630M optimus chipset, and I found frequent freeze of the X windowing system. If you find such hang/freeze, then ditch 3.2 kernel and move on to 3.4 kernel. The 3.2 consumes more power, lots of heat (when you work from home, no air con) you can really feel it. I was forced…

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