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I'm new to linux and installed Ubuntu 13.04 32bit on an older Dell Inspiron E1705 laptop. Both the wireless and wired ethernet connections are not recognized. I would appreciate any help getting either working but wireless would be the most useful. The WLAN card is a Broadcom BCM4311 b/g internal card. Please help Ubuntu power users, you are my only hope!

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New questions about end-of-life Ubuntu releases are considered off-topic as per the help center. These old releases are unsupported and their use is not recommended. They don't even get updates for newly discovered security vulnerabilities, which makes using them risky. If you install or upgrade to a supported release and this question still applies, please flag and/or comment to request it be reopened. –  Eric Carvalho Mar 16 '14 at 23:40
@EricCarvalho The duplicate you quoted is misleading and, in several places, absolutely incorrect. –  chili555 Mar 17 '14 at 0:10
Thank you for the response. I will follow the linked troubleshooting or switch to a current release and resubmit my question. –  user258998 Mar 17 '14 at 0:14
@chili555 The second answer (by Luis Alvarado) explains in details how to install the driver for OP's card. How can this be misleading? I have installed the driver for BCM4311 several times by following that exact instructions. I'm sure it is not incorrect. –  Eric Carvalho Mar 17 '14 at 0:19
@EricCarvalho I'm sorry, Additional Drivers, aka bcmwl-kernel-source is incorrect for Broadcom 4311. I will be happy to provide the same documentation I supplied to Luis. –  chili555 Mar 17 '14 at 0:33

2 Answers 2

up vote 3 down vote accepted

Please hook up the ethernet and open a terminal and do:

sudo modprobe b44

Your ethernet should now be working. Now do:

sudo apt-get purge bcmwl-kernel-source
sudo apt-get install firmware-b43-installer

Detach the ethernet, reboot and both should now be working. If it is not yet working, please do:

sudo apt-get purge bcmwl-kernel-source

Reboot. If it is still not working, look for clues here:

rfkill list all
dmesg | grep -e b44 -e eth0

The driver b44 is correct for your ethernet device. Your system shouldn't hang loading the correct driver. Please run:

dmesg > wifi.txt
lsmod >> wifi.txt

Find the file wifi.txt in your user directory and transfer it on a USB drive or similar and paste it here: http://paste.ubuntu.com Give us the link in your reply.

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after sudo modprobe b44 and entering my su password and enter, a white blinking cursor appears on a blank line. I have waited and nothing has happened. –  user258998 Mar 17 '14 at 0:17
Get back the command prompt with Ctrl+c. When you click the Network Manager icon, does it show an ethernet connection? Please confirm your ethernet device: lspci -nn | greo 0200 Thanks. –  chili555 Mar 17 '14 at 0:27
lspci -nn | grep 0200 returns 03:00.0 Ethernet controller [0200]: Broadcom Corporation BCM4401-B0 100Base-TX [14e4:170c] (rev 02) Nothing except Network Proxy is shown. There are no network connections. I appreciate the quick responses. I should add that there is a blue wifi button (Fn + F2) but pressing it does nothing. –  user258998 Mar 17 '14 at 0:31
B44 is correct for your ethernet. Is it still hung? Please see my edit. –  chili555 Mar 17 '14 at 0:35
Yes. I created an ethernet connection to test and it still hangs after sudo modprobe b44 –  user258998 Mar 17 '14 at 0:37

Other useful steps for the accepted answer.

Links to .deb packages for Ubuntu 13.04 / Raring:

sudo dpkg -i each_downloaded_package

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