Take the 2-minute tour ×
Ask Ubuntu is a question and answer site for Ubuntu users and developers. It's 100% free, no registration required.

This question already has an answer here:

I have installed Ubuntu 12.10 on my Lenovo G550 laptop. It has a Broadcom 4312 Wireless LAN adapter which is not working.

04:00.0 Network controller [0280]: Broadcom Corporation BCM4312 802.11b/g LP-PHY [14e4:4315] (rev 01)

How do I fix it? How can I see what drivers are being used? I've downloaded what I think is the driver from the Broadcom site but have no idea how to get it installed.

Please keep in mind that I'm completely new at this Linux stuff.

share|improve this question

marked as duplicate by Luis Alvarado Jun 17 '13 at 18:53

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

Please run lspci -nn and edit your question to add your wireless card details. –  chili555 Nov 19 '12 at 13:26

1 Answer 1

The Broadcom 14e4:4315 needs this:

    sudo apt-get install linux-headers-generic
    sudo apt-get install --reinstall bcmwl-kernel-source
    sudo modprobe wl
share|improve this answer
You saved my day! –  Anton Derevyanko Apr 4 '13 at 21:10
you saved my day ! , thanks –  tawfekov Nov 19 '13 at 14:03
Mine was ok by the 2nd command... not sure if I type in the last one :) Thank you! –  Rui Pimentel Mar 20 at 19:55

Not the answer you're looking for? Browse other questions tagged or ask your own question.