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Thread: No Wireless : Broadcom BCM4312 802.11b/g(rev 01)

  1. #1
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    No Wireless : Broadcom BCM4312 802.11b/g(rev 01)

    I have just done adual boot on my Dell Mini 1010 and cannot get a wireless connectionusing Ubantu but can with Windows XP. The fixed wire internetconnection works fine for both.


    I have tried using'Additional Drivers' but get an error message – failed to install.


    The systems info (when in Windows) gives :-
    Dell Wireless 1397WLAN Mini Card Version 5.10.79.7
    Chipset BCM4315/BCM 22062000


    Putting lspci code( when in Ubantu) gives:-
    Network ControllerBroadcom BCM 4312 802.11 b/g LP-PHY (rev 01)


    I have downloadedthe Synaptic Package Manager but not used the code 'bcmwl-kernal-source ' as yet as there are conflicting comments aboutthis in the numerous threads - I have tried to work through these butthere does not appear to be a satisfactory solution that I can see.


    Can someone give aclear method of approach on this – I do like the Ubantu concept !
    Last edited by angel mike; July 2nd, 2013 at 09:21 AM.

  2. #2
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    Re: No Wireless : Broadcom BCM4312 802.11b/g(rev 01)

    ...what version of ubuntu are you using, try a software update...but bheck your software sources first if the needed repos are with check marks.

  3. #3
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    Re: No Wireless : Broadcom BCM4312 802.11b/g(rev 01)

    I have just downloaded ubantu 12.04 from the ubantu web site

  4. #4
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    Re: No Wireless : Broadcom BCM4312 802.11b/g(rev 01)

    Putting lspci code( when in Ubantu) gives:-
    Network ControllerBroadcom BCM 4312 802.11 b/g LP-PHY (rev 01)
    What does this report?
    Code:
    lspci -nn -d 14e4:
    I wish all the Broadcom questions were this easy!
    "Oh, Ubuntu, you are my favorite Linux-based operating system" --Dr. Sheldon Cooper, Ph.D.

  5. #5
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    Re: No Wireless : Broadcom BCM4312 802.11b/g(rev 01)

    lspci -nn -d 14e4: gives 03:00.0 Network controller [0280]: Broadcom Corporation BCM4312 802.11b/g LP-PHY [14e4:4315] (rev 01)
    Thanks for replying - I hope your right about it being an easy question !
    The ubantu version is 12.04 LTS Desktop and is upto date by the way - downloaded from ubantu.com.

  6. #6
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    Re: No Wireless : Broadcom BCM4312 802.11b/g(rev 01)

    Quote Originally Posted by angel mike View Post
    lspci -nn -d 14e4: gives 03:00.0 Network controller [0280]: Broadcom Corporation BCM4312 802.11b/g LP-PHY [14e4:4315] (rev 01)
    Thanks for replying - I hope your right about it being an easy question !
    The ubantu version is 12.04 LTS Desktop and is upto date by the way - downloaded from ubantu.com.
    I've been known to be right a couple of times...

    Please hook up that working ethernet and do:
    Code:
    sudo apt-get install linux-headers-generic bcmwl-kernel-source
    After it completes, detach the ethernet and reboot. Then use your new wireless to give us your report.
    "Oh, Ubuntu, you are my favorite Linux-based operating system" --Dr. Sheldon Cooper, Ph.D.

  7. #7
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    Re: No Wireless : Broadcom BCM4312 802.11b/g(rev 01)

    I did that but it did not work - here's the output

    Reading package lists .... Done
    Building dependency tree
    Reading state information... Done
    E:Unable to locate package bcmwl-kernal-source

    The ethernet was working - I reconnected it and was able to use google.

  8. #8
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    Re: No Wireless : Broadcom BCM4312 802.11b/g(rev 01)

    Kernel with an E, not kernal with an A. Please try again.
    "Oh, Ubuntu, you are my favorite Linux-based operating system" --Dr. Sheldon Cooper, Ph.D.

  9. #9
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    Re: No Wireless : Broadcom BCM4312 802.11b/g(rev 01)

    Sorry about that - thanks for your patience ! Unfortunately still no wireless connection. Output now reads :

    Reading package lists ...Done
    Building dependency tree
    Reading state information...Done
    linux-headers-generic is already the newest version
    bcmwl-kernel-source is already the newest version
    0 upgrade, 0 newly installed, 0 to remove and 0 not upgraded

    Regards Mike

  10. #10
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    Re: No Wireless : Broadcom BCM4312 802.11b/g(rev 01)

    Let's probe a bit deeper:
    Code:
    sudo modprobe wl
    iwconfig
    rfkill list all
    dmesg | grep wl
    Thanks.
    "Oh, Ubuntu, you are my favorite Linux-based operating system" --Dr. Sheldon Cooper, Ph.D.

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