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Possible Duplicate:
How do I install BCM43142 wireless drivers for Dell Vostro 3460/3560?
Ubuntu 12.10, Wireless not working

I received my new Dell Vostro 2420 last week and just got around to upgrading from Ubuntu 11.10 (Oneiric Ocelot) to Ubuntu 12.10 (Quantal Quetzal).

Unfortunately, like many others (after researching the issue), I no longer have Wi-Fi. I have tried every sudo command given that worked for others and still can't get my wireless to function.

I can connect via Ethernet, just not via Wi-Fi. As a matter of fact, when I use Fn + F2 to turn on Wi-Fi, only my Bluetooth comes on.

lspci 
 00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09)

 00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)

 00:16.0 Communication controller: Intel Corporation Panther Point MEI Controller #1 (rev 04)

 00:1a.0 USB controller: Intel Corporation Panther Point USB Enhanced Host Controller #2 (rev 04)

 00:1b.0 Audio device: Intel Corporation Panther Point High Definition Audio Controller (rev 04)

 00:1c.0 PCI bridge: Intel Corporation Panther Point PCI Express Root Port 1 (rev c4)

 00:1c.3 PCI bridge: Intel Corporation Panther Point PCI Express Root Port 4 (rev c4)

 00:1c.5 PCI bridge: Intel Corporation Panther Point PCI Express Root Port 6 (rev c4)

 00:1d.0 USB controller: Intel Corporation Panther Point USB Enhanced Host Controller #1 (rev 04)

 00:1f.0 ISA bridge: Intel Corporation Panther Point LPC Controller (rev 04)

 00:1f.2 SATA controller: Intel Corporation Panther Point 6 port SATA Controller [AHCI mode] (rev 04)

 00:1f.3 SMBus: Intel Corporation Panther Point SMBus Controller (rev 04)

 07:00.0 Network controller: Broadcom Corporation Device 4365 (rev 01)

 09:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 07)

This is what I am getting...

dpkg: error: --install needs at least one package archive file argument

Type dpkg --help for help about installing and deinstalling packages [*]; Use dselect or aptitude for user-friendly package management;
Type dpkg -Dhelp for a list of dpkg debug flag values;
Type dpkg --force-help for a list of forcing options;
Type dpkg-deb --help for help about manipulating *.deb files;

Options marked [*] produce a lot of output - pipe it through less or more !

Community
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Steven Guillory
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3 Answers3

1

I have the same hardware and had the same problem.

To fix, I downloaded/installed the http://jas.gemnetworks.com/debian/pool/main/w/wireless-bcm43142/wireless-bcm43142-dkms_6.20.55.19-1_amd64.deb .

Open a terminal, copy and paste the following:

wget http://jas.gemnetworks.com/debian/pool/main/w/wireless-bcm43142/wireless-bcm43142-dkms_6.20.55.19-1_amd64.deb
sudo dpkg -i wireless-bcm43142-dkms_6.20.55.19-1_amd64.deb

I found this solution from: Dell Vostro 2420 upgrade to 12.04.1 no wifi

Simply downloading/installing the above deb should work for you as long as you are using Ubuntu 12.10 64bit.

Good luck

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kris26
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Please can you open up a terminal and issue lspci then post the output? Also have you tried connecting via LAN?

Good you have a Broadcom Corporation Device 4365. Most people get affected after a kernel upgrade. First, install the prerequisites by opening a terminal and pasting, one line at a time:

sudo apt-get install linux-headers$(uname -r | grep -Po "\-[a-z].*")
sudo apt-get install build-essential dkms

If your PC is 32-bit/i386 then open a terminal and copy/paste the following

wget https://www.dropbox.com/s/n76dcsdtayvp0wm/wireless-bcm43142-dkms-6.20.55.19_i386.deb
sudo dpkg -i wireless-bcm43142-dkms-6.20.55.19_i386.deb

If 64-bit/amd64 then open a terminal and copy/paste the following

wget https://www.dropbox.com/s/jerkl6uqal5ylv3/wireless-bcm43142-dkms-6.20.55.19_amd64.deb
sudo dpkg -i wireless-bcm43142-dkms-6.20.55.19_amd64.deb

The suggestion was gotten from BCM43142 wireless drivers

Please let me know if it works!

Community
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Mighty
  • 147
  • Steven tried to add the results as an edit to your answer (rejected edit). He didn't understand the instructions and says: "This is what I am getting...

    dpkg: error: --install needs at least one package archive file argument"

    You'll need to be a bit more explicit in your instructions.

     – fabricator4 Dec 10 '12 at 09:27
  • Thanks @fabricator4 I've made my instructions more explicit. Hopefully it helps Steven. Cheers!!! – Mighty Dec 13 '12 at 19:33
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I think the new kernel and broadcom drivers are the reason for the problem. Run 

sudo apt-get install linux-headers-generic
sudo apt-get install --reinstall bcmwl-kernel-source
sudo modprobe wl

Now your wireless should start working.

Source:

Community
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Hashken
  • 6,282