Latest LQ Deal: Linux Power User Bundle
Go Back > Forums > Linux Forums > Linux - Newbie
User Name
Linux - Newbie This Linux forum is for members that are new to Linux.
Just starting out and have a question? If it is not in the man pages or the how-to's this is the place!


  Search this Thread
Old 12-08-2011, 03:52 AM   #1
LQ Newbie
Registered: Dec 2011
Posts: 3

Rep: Reputation: Disabled
Kubuntu 11.10 wifi problems broadcom


I know that there are a lot of other forums about this topic and I have read a lot of them, but as I am not an expert, I don't know how to solve my problem.
I have Acer Travelmate 2490 notebook. I wanted to upgrade from kubuntu 11.04 to 11.10 but something went wrong and finally I had to delete 11.04 and install 11.10 as a new system. Previously I had some help with the upgrades and every problem was solved, but now I did it on my own, and I don't remember to the solutions. My biggest problem is that my wifi doesn't work. When I click on knetwork manager I see WLAN unavaible (it's enabled) and if I click on it I see this:

Wireless 802.11
Connection State:
IP Address:
No IP address.
Connection Speed:
System Name:
MAC Address:

Based on the things I read in other forums I could find out the type of my wifi card with this command: "~$ lspci -vvnn | grep 14e4" and I got this:
"06:01.0 Ethernet controller [0200]: Broadcom Corporation BCM4401-B0 100Base-TX [14e4:170c] (rev 02)
06:02.0 Network controller [0280]: Broadcom Corporation BCM4318 [AirForce One 54g] 802.11g Wireless LAN Controller [14e4:4318] (rev 02)"

I would really appreciate if someone could help me. Please write exactly what should I do like you would explain something to an idiot

Old 12-08-2011, 09:32 PM   #2
LQ Guru
Registered: Jan 2006
Location: Virginia, USA
Distribution: Slackware, Debian, Mageia, and whatever VMs I happen to be playing with
Posts: 12,652
Blog Entries: 17

Rep: Reputation: 3259Reputation: 3259Reputation: 3259Reputation: 3259Reputation: 3259Reputation: 3259Reputation: 3259Reputation: 3259Reputation: 3259Reputation: 3259Reputation: 3259
The Broadcom drivers are available and in the restricted packages repos, which are not enabled by default.

I haven't used Kubuntu, so I can't point you directly to the exact location, but in Synaptic or its Kubuntu equivalent, find the list of repositories and enable the "restricted drivers" one.

You could also look around the control panel area for something that says "additional" or "proprietary" or "restricted" drivers or some such wording.
Old 12-09-2011, 06:43 AM   #3
LQ Newbie
Registered: Dec 2011
Posts: 3

Original Poster
Rep: Reputation: Disabled
Thank you for your answer.
I guess one problem was that I searched for drivers to "Broadcom Corporation BCM4401" instead of "Broadcom Corporation BCM4318". I found some advices here and I downloaded b43-fwcutter and firmware-b43-installer, but I don't know how to use them. I didn't find how to activate additional drivers in system settings, I just don't see anything which refers to additional drivers.
Old 12-09-2011, 07:18 AM   #4
Registered: Apr 2007
Location: West Virginia
Distribution: Mint
Posts: 778

Rep: Reputation: 201Reputation: 201Reputation: 201
I don't use kubuntu (I run Ubuntu) but there is in the settings a utility called "restricted drivers" or "additional drivers". You can use that to install what you need.

Last edited by jkirchner; 12-09-2011 at 07:23 AM.
Old 12-09-2011, 08:25 AM   #5
LQ Newbie
Registered: Dec 2011
Posts: 3

Original Poster
Rep: Reputation: Disabled
Thanks for all the answers. I still didn't find in system settings what you wrote, but I followed the instructions here and it worked!!


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Broadcom 802.11 Linux STA driver (broadcom-wl) - Problems (Fed15) Rian79 Linux - Wireless Networking 1 08-09-2011 10:10 AM
Ropy slow wifi in kubuntu feisty 7.04 using Broadcom Corporation BCM4310 slybob Linux - Wireless Networking 0 06-22-2007 04:49 AM
WiFi and Broadcom Infatuas Linux - Desktop 4 10-27-2006 06:28 AM
Broadcom Wifi Problems sampbar SUSE / openSUSE 3 01-07-2006 11:55 AM
Broadcom Wifi spaaarky21 Fedora 8 01-01-2005 11:19 AM > Forums > Linux Forums > Linux - Newbie

All times are GMT -5. The time now is 08:34 PM.

Main Menu
Write for LQ is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration