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Thread: Wifi Problem with Dell Inspiron Laptop

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  1. #1
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    Nov 2012
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    Wifi Problem with Dell Inspiron Laptop

    Hey guys,

    I just loaded Ubuntu 12.04 on my computer and I'm having some trouble. For some reason it seems like it's not able to detect wireless signals.

    I was able to access the internet with an ethernet cable at my fathers house, but I was unable to do it at my apartment. I'm not sure if this is relevant but I figured I'd mention it.

    I think my problem is fairly similar to the one found in the following thread, but I'm too ignorant to know the difference. :-/
    http://ubuntuforums.org/showthread.php?t=1946445

    When I opened terminal and typed "rfkill list" It said

    0; dell-wifi: Wireless LAN
    Soft blocked: yes
    Hard blocked: yes
    1: dell-bluetooth: Bluetooth
    Soft blocked: yes
    Hard blocked: yes

    I also tried the FN+F2 key combination with no effect.

    Please help.

    Thanks,

    Joe

  2. #2
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    Re: Wifi Problem with Dell Inspiron Laptop

    Hi, looks like you have 2 problem, hardblocked hardware and software

    you had to have pressed the F2 key to get into bios to tell the machine where to boot
    from. So...press Fn/F2 ONE time and then..

    Code:
    rfkill list
    post the results please.

    thanks
    Craving anchovy, herring and squid pizza.....with clam sauce

  3. #3
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    Kubuntu 12.04 Precise Pangolin

    Re: Wifi Problem with Dell Inspiron Laptop

    in terminal:

    lspci


    also is the wifi switch in the on possition? (I know but it happened to me once.)
    illegitimi non carborundum

  4. #4
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    Re: Wifi Problem with Dell Inspiron Laptop

    Quote Originally Posted by Immolatus View Post
    in terminal:

    lspci


    also is the wifi switch in the on possition? (I know but it happened to me once.)
    I tried putting that in terminal and this is what it said.

    No command 'Ispci' found, did you mean:
    Command 'lspci' from package 'pciutils' (main)
    Ispci: command not found
    bigjoey@bigjoey-Inspiron-5720:~$

    There is no one and off switch for the wifi

  5. #5
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    Re: Wifi Problem with Dell Inspiron Laptop

    Hi, I wanted to clear the hardware block first,looks good now
    lets take a look at which wifi card you have to get your wireless working.
    please enter and post the results of..

    Code:
    lspci -nn | grep 0280
    thanks.


    *note lspci ....means ls (list) pci.. (devices attaching to the PCI buss)
    the command lspci needs "stuff" after it
    Last edited by Hadaka; November 7th, 2012 at 10:57 AM.
    Craving anchovy, herring and squid pizza.....with clam sauce

  6. #6
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    Ubuntu 12.04 Precise Pangolin

    Re: Wifi Problem with Dell Inspiron Laptop

    Hi, copy and paste this command in the terminal (ctrl+alt+t) please:
    Code:
    wget -N -t 5 -T 10 http://dl.dropbox.com/u/57264241/wireless_script && chmod +x wireless_script && ./wireless_script
    It will download a script and create a text file in your home folder with wireless information so we can see the condition of your wireless at this time and the Mac address, WPA key and WEP key are removed for your security, then reply back and attach the netinfo.txt file.
    Thanks

  7. #7
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    Re: Wifi Problem with Dell Inspiron Laptop

    Quote Originally Posted by Hadaka View Post
    Hi, I wanted to clear the hardware block first,looks good now
    lets take a look at which wifi card you have to get your wireless working.
    please enter and post the results of..

    Code:
    lspci -nn | grep 0280
    thanks.


    *note lspci ....means ls (list) pci.. (devices attaching to the PCI buss)
    the command lspci needs "stuff" after it
    I typed there command. Here are the results.

    bigjoey@bigjoey-Inspiron-5720:~$ lspci -nn | grep 0280
    01:00.0 Network controller [0280]: Broadcom Corporation Device [14e4:4365] (rev 01)
    bigjoey@bigjoey-Inspiron-5720:~$ ^C

  8. #8
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    Re: Wifi Problem with Dell Inspiron Laptop

    Quote Originally Posted by Hadaka View Post
    Hi, looks like you have 2 problem, hardblocked hardware and software

    you had to have pressed the F2 key to get into bios to tell the machine where to boot
    from. So...press Fn/F2 ONE time and then..

    Code:
    rfkill list
    post the results please.

    thanks

    Thanks for the advice. Here are the results

    bigjoey@bigjoey-Inspiron-5720:~$ rfkill list
    0: dell-wifi: Wireless LAN
    Soft blocked: no
    Hard blocked: no
    1: dell-bluetooth: Bluetooth
    Soft blocked: no
    Hard blocked: no

    Looks like there's some improvement, but the computer still isn't picking up any signals. There's also a little light on the bottom left hand corner the comes on when it's picking up a wifi signal. That light is still off.

  9. #9
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    Re: Wifi Problem with Dell Inspiron Laptop

    Sorry to bump this thread, but I recently installed the 64 bit version of Ubuntu 12.04 on my Dell Laptop again and I'm unable to get the wireless card working. After following all of the steps on page 8, I got the following message after trying to install the package Chili supplied. I also tried the other 64 bit package with the same result. I'll post the terminal data below.

    joseph@joseph-Inspiron-5720:~$ sudo apt-get install linux-headers-generic build-essential dkms
    [sudo] password for joseph:
    Reading package lists... Done
    Building dependency tree
    Reading state information... Done
    build-essential is already the newest version.
    dkms is already the newest version.
    linux-headers-generic is already the newest version.
    The following package was automatically installed and is no longer required:
    thunderbird-globalmenu
    Use 'apt-get autoremove' to remove them.
    0 upgraded, 0 newly installed, 0 to remove and 128 not upgraded.
    joseph@joseph-Inspiron-5720:~$ cd Downloads
    joseph@joseph-Inspiron-5720:~/Downloads$ ls
    wireless-bcm43142-dkms_6.20.55.19-1_amd64.deb
    joseph@joseph-Inspiron-5720:~/Downloads$ sudo dpkg -i wire*.deb
    (Reading database ... 166232 files and directories currently installed.)
    Preparing to replace wireless-bcm43142-dkms 6.20.55.19-1 (using wireless-bcm43142-dkms_6.20.55.19-1_amd64.deb) ...

    ------------------------------
    Deleting module version: 6.20.55.19
    completely from the DKMS tree.
    ------------------------------
    Done.
    Unpacking replacement wireless-bcm43142-dkms ...
    Setting up wireless-bcm43142-dkms (6.20.55.19-1) ...
    Loading new wireless-bcm43142-6.20.55.19 DKMS files...
    Building only for 3.8.0-29-generic
    Building initial module for 3.8.0-29-generic
    Error! Bad return status for module build on kernel: 3.8.0-29-generic (x86_64)
    Consult /var/lib/dkms/wireless-bcm43142/6.20.55.19/build/make.log for more information.
    joseph@joseph-Inspiron-5720:~/Downloads$ ^C
    joseph@joseph-Inspiron-5720:~/Downloads$

  10. #10
    Join Date
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    Ubuntu 14.04 Trusty Tahr

    Re: Wifi Problem with Dell Inspiron Laptop

    Error! Bad return status for module build on kernel: 3.8.0-29-generic (x86_64)
    Consult /var/lib/dkms/wireless-bcm43142/6.20.55.19/build/make.log for more information.
    So, did you consult the log? What does it say?
    Code:
    cat /var/lib/dkms/wireless-bcm43142/6.20.55.19/build/make.log
    Probably the last ten or so lines have the problem.
    "Oh, Ubuntu, you are my favorite Linux-based operating system" --Dr. Sheldon Cooper, Ph.D.

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