Announcement

Collapse
No announcement yet.

Wireless post-installation problem

Collapse
This topic is closed.
X
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

    Wireless post-installation problem

    I've just installed Kubuntu on my laptop, and I cannot get my wireless NIC to work. It worked fine when trying Kubuntu from the usb, but I can't get it up and running now. Here are the details, the steps I took, and the problem:

    Kubuntu 14.04
    Broadcom Corporation Wireless 1395 WLAN Mini-Card

    When trying Kubuntu, it prompted me for non-free drivers that might be missing. I opened the Driver Manager and selected the "Using Broadcom 802.11 Linux STA wireless driver source from bcmwl-kernel-source" option, and then I hit "Apply". After that, changes were committed and wireless worked like a charm.

    After installation (nothing funny there, everything guided and no input on my part, besides the obvious user-password-etc. thing), I rebooted into Kubuntu. The first order of business was to get the interface up and running. So I did:

    System settings > Driver Manager

    Two options came up (and still do):

    "Using Broadcom 802.11 Linux STA wireless driver source from bcmwl-kernel-source"
    "Using Non-free firmware for Linux kernel drivers from linux-firmware-nonfree"

    Now, the problem is: it doens't matter what I do, what I select (both options, or either one of them), when I hit "Apply", I get prompted for my user password (expectedly), and then changes are apparently committed. BUT, no changes get committed at all, options reappear unselected, and wireless is still down.

    Any ideas?

    Best,
    Ramiro

    #2
    That card contains the legacy BCM4312 chip. Broadcom now supplies drivers for it:
    http://www.broadcom.com/support/802.11/linux_sta.php
    but those drivers are in the repository.

    How to get it working is described here: http://wireless.kernel.org/en/users/Drivers/b43

    Here is one example of how to get it working:
    http://ubuntuforums.org/showthread.php?t=2195872

    The key is extracting the proprietary firmware from the Windows drivers. "firmware-b43-installer" does this.
    Code:
    sudo apt-get purge --remove bcmwl-kernel-source b43-fwcutter firmware-b43-installer firmware-b43legacy-installer firmware-b43-lpphy-installer
    sudo apt-get install firmware-b43-installer
    Reboot.

    Additional help with Ubuntu systems is here but follow one or the other, not both.
    "A nation that is afraid to let its people judge the truth and falsehood in an open market is a nation that is afraid of its people.”
    – John F. Kennedy, February 26, 1962.

    Comment


      #3
      That did it. Thank you so much.

      Comment

      Working...
      X