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Ubuntu 12.10 wireless shutdown issue

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linux-howto

http://askubuntu.com – When I try to shutdown or restart my laptop it hangs at the point where it says "* will now halt" but never turns off. After some digging I have traced the root of the problem back to the wireless adapter. If I turn the wireless off before shutting down the system powers off correctly. The wirless card is a broadcom BCM4313 and the system appears to be using the Broadcom STA wl driver. It currently has modules wl and bcma loaded but I have tried disabling both using "modprobe -r" and trying to use the other but the problem still occurs. Can anybody advise me on what I can try next? (HowTos)