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Compaq CQ40 Wireless Driver

This did not work out-of the box for me with Kubuntu 9.10.
`lspci` showed me that the wireless device was:
03:00.0 Network controller: Broadcom Corporation BCM4312 802.11b/g (rev 01)
This is messed up. The driver provided by the manufacturer worked fine with the previous kernels and the previous releases of kubuntu (kernel 2.6.28 ). After some googling I found a broadcom driver in the Ubuntu ‘restriced’ repos which is provided by the package `bcmwl-kernel-source`.

So if you have the “restricted” repositories turned on in your machine this will work fine. You’ll just need a reboot sudo aptitude install bcmwl-kernel-source

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