Wireless not working on Dell Vostro 2420 running Ubuntu 14.04

[Adhin D]

Hi Friends,

I' m posting this on behalf of my friend who installed Ubuntu 14.04 on his Dell vostro 2420 laptop.

It looks like the wireless device is not even detected. Wirerless works fine in Windows.

Please help.... Please refer the lspci, lsusb outputs below:

faijas@faijas-Vostro:~$ lspci

00:00.0 Host bridge: Intel Corporation 3rd Gen Core processor DRAM Controller (rev 09)

00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09)

00:16.0 Communication controller: Intel Corporation 7 Series/C210 Series Chipset Family MEI Controller #1 (rev 04)

00:1a.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #2 (rev 04)

00:1b.0 Audio device: Intel Corporation 7 Series/C210 Series Chipset Family High Definition Audio Controller (rev 04)

00:1c.0 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 1 (rev c4)

00:1c.3 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 4 (rev c4)

00:1c.5 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 6 (rev c4)

00:1d.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #1 (rev 04)

00:1f.0 ISA bridge: Intel Corporation HM75 Express Chipset LPC Controller (rev 04)

00:1f.2 SATA controller: Intel Corporation 7 Series Chipset Family 6-port SATA Controller [AHCI mode] (rev 04)

00:1f.3 SMBus: Intel Corporation 7 Series/C210 Series Chipset Family SMBus Controller (rev 04)

07:00.0 Network controller: Broadcom Corporation BCM43142 802.11b/g/n (rev 01)

09:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 07)

 

faijas@faijas-Vostro:~$ lsusb

Bus 002 Device 003: ID 0bda:0138 Realtek Semiconductor Corp. RTS5138 Card Reader Controller

Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub

Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

Bus 001 Device 005: ID 0c45:6473 Microdia

Bus 001 Device 004: ID 0a5c:21d7 Broadcom Corp. BCM43142 Bluetooth 4.0

Bus 001 Device 003: ID 1d57:ad0a Xenta

Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub

Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

 

faijas@faijas-Vostro:~$ iwconfig

lo        no wireless extensions.

 

eth0      no wireless extensions.

 

faijas@faijas-Vostro:~$ ifconfig

eth0      Link encap:Ethernet  HWaddr e0:db:55:a2:0f:56 

          UP BROADCAST MULTICAST  MTU:1500  Metric:1

          RX packets:0 errors:0 dropped:0 overruns:0 frame:0

          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:1000

          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

 

lo        Link encap:Local Loopback 

          inet addr:127.0.0.1  Mask:255.0.0.0

          inet6 addr: ::1/128 Scope:Host

          UP LOOPBACK RUNNING  MTU:65536  Metric:1

          RX packets:201 errors:0 dropped:0 overruns:0 frame:0

          TX packets:201 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:0

          RX bytes:14895 (14.8 KB)  TX bytes:14895 (14.8 KB)

 

faijas@faijas-Vostro:~$ rfkill list all

0: hci0: Bluetooth

            Soft blocked: no

            Hard blocked: no

--

----------------------------------------------------------------------------------------------------------------

May the FOSS be with you... always

- Adhin

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[ganesh]

Hi Adhin,

It seems wireless chipset is Broadcom BCM43142.try this method

http://thedubiousdisc.wordpress.com/2013/10/13/making-bcm43142-wireless-driver-work-on-debian/

[Jomon John]

Hai Adhin,

Recently i installed Xubuntu 14.04 [amd64] on a laptop with same wifi
chipset BCM43412, anf found to be working fine.

The 'lspci' shows the chipset as

02:00.0 Network controller: Broadcom Corporation BCM43142 802.11b/g/n (rev 01)

To do this,

[1]. Just make a pacage index update with "sudo apt-get update"

[2]. Enable "Broadcom 802.11 Linux STA wireless driver source" from
3rd party proprietary driver section.

Thats all,

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[Adhin D]

Hi Friends,

Thanks for the tip.

I asked him to download & install the restricted drivers. Now the wifi connections can bee seen in the network manager. Never got an opportunity to verify the connection. Hope it is fine by now. I'll let you know wahen done.

[Omkar Chiplunkar]

Thanks This Works ......

Omkar

On Wednesday, April 30, 2014 3:26:55 PM UTC+5:30, Adhin wrote: