I have been trying everything to get my Broadcom Wireless (4313) working on my Lenovo IdeaPad U410, but only with limited success.
This is the status:
tried brcmsmac driver of both the stock Ubuntu 12.04 kernel 3.2.0-26 and 3.5.0-030500rc6. Driver loads and card is detected (wlan0), but no wireless networks show up in network manager.
tried wl driver, both installed through jockey and manually installed from broadcom source. This makes it possible to connect to the network, but only has good speed when I put the laptop very close to one of my two access points. A few feet away already makes the bandwidth drop to virtually zero. (My sony laptop achieves maximum speeds even meters away from the access point).
So the questions are:
why does the brcmsmac show no networks?
why is the wl driver working but so limited?
Thanks for your support!