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Wireless isn't working in ubuntu 14.04, even after installing bcmwl-kernel-source package & enabling it via: Software & Update/Additional Drivers Also, There are no options to enable a Wireless network in System Settings/Network. I work on a new Dell Inspirion 3543.

Here are the Network card details:

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]
    Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
    Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
    Interrupt: pin A routed to IRQ 255
    Region 0: Memory at f7200000 (64-bit, non-prefetchable) [disabled] [size=32K]
    Capabilities: <access denied>

07:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet controller [10ec:8136] (rev 07)
    Subsystem: Dell Device [1028:0656]

dpkg -l | grep bcmwl result:

ii  bcmwl-kernel-source             6.30.223.248+bdcom-0ubuntu1 

amd64        Broadcom 802.11 Linux STA wireless driver source

I already tried the answer:

Drivers for Broadcom BCM43142 on Ubuntu 14.04 (Trusty Tahr)

But still bcmwl-kernel-source wouldn't install correctly, it gets installed with no wl!

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7
  • user3305447 - is your issue solved ?
    – user399880
    Apr 20, 2015 at 17:37
  • No, it isn't solved ... any suggestions?!
    – user3305447
    Apr 20, 2015 at 20:35
  • Add the results of dpkg -l | grep bcmwl to your question. The -l is a lower case L not a 1(one)
    – Jeremy31
    Apr 21, 2015 at 10:11
  • done: ii bcmwl-kernel-source 6.30.223.248+bdcom-0ubuntu1 amd64 Broadcom 802.11 Linux STA wireless driver source
    – user3305447
    Apr 21, 2015 at 16:39
  • Possible duplicate of Installing Broadcom Wireless Drivers
    – αғsнιη
    Apr 21, 2015 at 17:07

1 Answer 1

Reset to default
1

Which kernel you are using (uname -a)?

I had the same problem after updating from 3.19 to 4.0 because the bcmwl-kernel-source package isn't working with 4.0 at the moment. If this is your problem, you can find more information about it (and the patch) here.

Edit: If someone is looking for the patch and how to apply it: longsleep (the author) updated the readme section of the project on how to build and install the package.

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5
  • Kernel: Linux 3.16.0-30-generic #40~14.04.1-Ubuntu SMP Thu Jan 15 17:43:14 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
    – user3305447
    Apr 20, 2015 at 15:04
  • If the patch is required, Would you please explain how to use it? because I'm new to Linux.
    – user3305447
    Apr 20, 2015 at 15:06
  • I'm afraid that my suggestion won't work for you because of the different kernel. I found another question with the same probleme here: askubuntu.com/questions/459654/…. Perhaps this can help you.
    – lumen
    Apr 21, 2015 at 8:08
  • Thank you, I already tried this answer but still having a problem in installing bcmwl-kernel-source .. it gets installed but without wl.
    – user3305447
    Apr 21, 2015 at 16:38
  • What does a sudo modprobe wl shows? And please use the script that David Foerster mentioned and post the results here.
    – lumen
    Apr 22, 2015 at 6:18

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