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I got a Dell Latitude D620 from work on condition it had to be DBAN DOD wiped prior to removal. It is a DuoCore 1.6GHz 1GB RAM machine which sounded like LUBUNTU would be good fit... All of it worked including wireless on MS XP SP3.

So I installed LUBUNTU today and am working on on wired connection but wireless does not show up... Tried iwconfig in terminal, which I would copy and paste here but copy{CTRL+C} in Xterm just results in ^C, however it shows lo which looks like a loopback and eth0 which is my wired... No Wireless...

In System Information: Operating System reports Kernel "Linux 3.13.0-37generic (i686)" Operating System reports Distribution "Ubuntu 14.04.1 LTS" In Kernel Modules I see a wl but its blank however several 802.11 modules show up... In the PCI devices I see "Network Controller Broadcom Corporation BCM4311 802.11a/b/g (rev01)"... That all said the LED is off and the hardware switch is on. On WinXP the blue light was on when the switch was on... Here in PCI Devices it knows its Dell and seems to have Broadcom driver...

Is there something like Device manager in windows? Or is System Information as close to that as there is?

I see a couple other Questions requarding this specific model and none seem to have a solution... Concerns me starting into UBUNTU... Hopefully there is a solution. Thanks,

Gooderham
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5 Answers5

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http://nfolamp.wordpress.com/2011/10/15/ubuntu-11-10-getting-wireless-bcm4311-working/

above URL gave me the commands I needed in Terminal to make this work for me:

sudo apt-get update

sudo apt-get install firmware-b43-installer

sudo apt-get remove bcmwl-kernel-source

sudo reboot

The remove seemed to be the key I needed for my 1490 a/b/g card.

CTRL+Shift+C works on Mint so here is what I got on my D520... (Yes I have both a D520 and a D620... not a typo)

owner@Latit-D520 ~ $ uname -a

Linux Latit-D520 3.13.0-24-generic #47-Ubuntu SMP Fri May 2 23:31:42 UTC 2014 i686 i686 i686 GNU/Linux

owner@Latit-D520 ~ $ lspci -vnn | grep 14e4

02:00.0 Ethernet controller [0200]: Broadcom Corporation BCM4401-B0 100Base-TX [14e4:170c] (rev 02)

0c:00.0 Network controller [0280]: Broadcom Corporation BCM4311 802.11a/b/g [14e4:4312] (rev 01)

owner@Latit-D520 ~ $

I then compared my model at http://wireless.kernel.org/en/users/Drivers/b43

Gooderham
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I have a dell latitude d620 and the answer below did resolve my issue. I was hesitant about the "remove" command and tried it without first and it did not work. Repeating it with the remove did the trick!

    sudo apt-get update

    sudo apt-get install firmware-b43-installer

    sudo apt-get remove bcmwl-kernel-source

    sudo reboot
Brad McFadden
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For the Dell 620 under Linux Mint 18.1 go to Administration/Driver Manager and there will be a suggestion for video and the b43 software (WiFi) install both reboot. b43 turns on the WiFi light then connect to the WiFi of choice.

Kevin Reynolds
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Plug in an ethernet cable so you have an internet connection, then go to

Menu>Preferences>Additional Drivers

This should allow you to download and install the proprietary drivers that are needed for some Broadcom cards to run.

Duck
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I've been struggling with the same issue for about half a day. This fixed it!

Dell XPS M1530; Ubuntu 16.04; Broadcom BCM4311 [14e4:4312]

On boot I'd have a kernel log entry of: @wl_cfg80211_detach, unable to deref wl and I was not able to enable the wifi.

I tried following the advice to go into System Settings > Software & Updates > Additional Drivers but selecting Using Broadcom 802.11 Linux STA wireless driver... would not work.

I followed some advice from other forums to try to install bcmwl-kernel-source which also did not work.

Finally, the simple steps to remove bcmwl-kernel-source after install firmware-b43-installer worked! Thank you all.

tuTTy
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