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I installed ubuntu on my new computer dell inspiron 15 3000 series

before it was windows and wifi worked well on it .

but on ubuntu it just can't work

when I type iwconfig on terminal here's what i get :

eth0      no wireless extentions.

lo        no wireless extentions.

when i type rfkill list all i get : 

 1: hci0 : Bluetooth 
           soft blocked : no 
           hard blocked : no

and when I type lspci -knn | grep Net -A2 i get : 

06:00.0 Network controller [0280]: Broadcom Corporation BCM43142 802.11b/g/n [14e4:4365] (rev 01)

Subsystem: Dell Wireless 1704 802.11n + BT 4.0 [1028:0016]

Kernel driver in use: bcma-pci-bridge
Ali Rafiq
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1 Answers1

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First go to System Settings, click on Software & Updates. Go to the Additional Drivers tab and see if the Broadcom card is listed. If so click on the Broadcom option.

And reboot only if the Broadcom source option appears.

IF there is no option for the Broadcom driver, in a terminal type 'sudo apt-get install ubuntu-restricted-extras' then go back to System Settings/Software & Updates. Click on Additional Drivers and choose Use Broadcom source option.

And again, reboot. I do the reboot because I've occasionally had problems where I had to rechoose the option fot it to work, but most of the time there were no problems.

Edgar Naser
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  • i don't have a wireless connection driver that's the problem, how could i install that package without eth or wifi ? – Ali Rafiq Jan 27 '16 at 21:23