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I have installed Ubuntu 12.04 today on my Inspiron 1545 and it works great.
I am on an ethernet connection but would like my wifi to work too.
I admit that this is my first time using any Linux distribution and I haven't got much experience with it.
When I go to my NetworkManager, he doesn't show me any Wifi connections. I already tried many codes according to other similar threads and installed a specific Broadcom driver but I still do not know how to proceed now.