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Thread: Inspiron 15R 5520 failure to detect wireless device

  1. #1
    Join Date
    Jun 2012
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    Inspiron 15R 5520 failure to detect wireless device

    Hallo,

    I have a problem with the wireless device on a Dell Inspiron 15R 5520 using ubuntu 12.04 (32bit). It seems that the wireless device is not detected at all by Ubuntu. It is neither listed in the dropdown menue for network settings, nor can I choose it in the menue for system settings, where only cable and proxy are listed. The wireless works fine under windows 7, though. I assumed that all hardware should be recognized by Ubuntu since the computer is listed as certified in Ubuntu's hardware list, although with a pre-installed Ubuntu: http://www.ubuntu.com/certification/.../201201-10377/

    Here are a few results from commands that have been suggested for the problem in an earlier thread (http://ubuntuforums.org/showthread.php?t=2010710):

    Code:
    cat /etc/lsb-release; uname -a
    DISTRIB_ID=Ubuntu
    DISTRIB_RELEASE=12.04
    DISTRIB_CODENAME=precise
    DISTRIB_DESCRIPTION="Ubuntu 12.04 LTS"
    Linux fdw2012 3.2.0-26-generic-pae #41-Ubuntu SMP Thu Jun 14 16:45:14 UTC 2012 i686 i686 i386 GNU/Linux
    Code:
    lspci -nnk | grep -iA2 net
    07:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet controller [10ec:8136] (rev 05)
        Subsystem: Dell Device [1028:056a]
        Kernel driver in use: r8169
    --
    08:00.0 Network controller [0280]: Broadcom Corporation Device [14e4:4365] (rev 01)
        Subsystem: Dell Device [1028:0016]
    Code:
    lsusb
    Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
    Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
    Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
    Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
    Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
    Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
    Bus 001 Device 003: ID 0bda:0129 Realtek Semiconductor Corp. 
    Bus 001 Device 004: ID 0c45:648d Microdia 
    Bus 002 Device 003: ID 0a5c:21d7 Broadcom Corp.
    Code:
    iwconfig
    lo        no wireless extensions.
    
    eth0      no wireless extensions.
    Code:
    rfkill list all
    0: dell-wifi: Wireless LAN
        Soft blocked: no
        Hard blocked: no
    1: dell-bluetooth: Bluetooth
        Soft blocked: no
        Hard blocked: no
    Code:
    lsmod
    Module                  Size  Used by
    nls_iso8859_1          12617  0 
    nls_cp437              12751  0 
    vfat                   17308  0 
    fat                    55605  1 vfat
    parport_pc             32114  0 
    ppdev                  12849  0 
    bnep                   17830  2 
    rfcomm                 38139  0 
    bluetooth             158438  10 bnep,rfcomm
    snd_hda_codec_hdmi     31775  1 
    snd_hda_codec_conexant    52516  1 
    joydev                 17393  0 
    snd_hda_intel          32765  3 
    snd_hda_codec         109562  3 snd_hda_codec_hdmi,snd_hda_codec_conexant,snd_hda_intel
    snd_hwdep              13276  1 snd_hda_codec
    snd_pcm                80845  3 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec
    snd_seq_midi           13132  0 
    dell_wmi               12601  0 
    sparse_keymap          13658  1 dell_wmi
    snd_rawmidi            25424  1 snd_seq_midi
    snd_seq_midi_event     14475  1 snd_seq_midi
    dell_laptop            17767  0 
    dcdbas                 14098  1 dell_laptop
    snd_seq                51567  2 snd_seq_midi,snd_seq_midi_event
    snd_timer              28931  2 snd_pcm,snd_seq
    snd_seq_device         14172  3 snd_seq_midi,snd_rawmidi,snd_seq
    uvcvideo               67203  0 
    videodev               86588  1 uvcvideo
    snd                    62064  16 snd_hda_codec_hdmi,snd_hda_codec_conexant,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
    fglrx                2909855  0 
    rts5139               279622  0 
    soundcore              14635  1 snd
    snd_page_alloc         14108  2 snd_hda_intel,snd_pcm
    psmouse                72919  0 
    serio_raw              13027  0 
    i915                  414655  2 
    drm_kms_helper         45466  1 i915
    drm                   197692  3 i915,drm_kms_helper
    mei                    36570  0 
    i2c_algo_bit           13199  1 i915
    wmi                    18744  1 dell_wmi
    video                  19068  1 i915
    mac_hid                13077  0 
    lp                     17455  0 
    parport                40930  3 parport_pc,ppdev,lp
    usbhid                 41906  0 
    hid                    77367  1 usbhid
    r8169                  56321  0

    Thanks for all suggestions!

  2. #2
    Join Date
    Aug 2006
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    Ubuntu 12.04 Precise Pangolin

    Re: Inspiron 15R 5520 failure to detect wireless device

    Looks like you have an unsupported device:

    Network controller [0280]: Broadcom Corporation Device [14e4:4365]

    Perhaps a kernel update will fix it, not really sure.

    https://answers.launchpad.net/ubuntu...uestion/200767

  3. #3
    Join Date
    Feb 2008
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    Re: Inspiron 15R 5520 failure to detect wireless device

    Can you plug in with a cable, do an update then check in 'Additional Drivers'?

  4. #4
    Join Date
    Jun 2012
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    9

    Re: Inspiron 15R 5520 failure to detect wireless device

    Hi Bucky Ball,

    Thanks for you reply. By update you mean a kernel update with this command?

    Code:
    sudo apt-get install --reinstall linux-image-$(uname -r)
    As to now, there is only a proprietory graphics driver listed for "additional drivers"

    Thanks!

  5. #5
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    Re: Inspiron 15R 5520 failure to detect wireless device

    No. I mean a simple update. To upgrade packages as well (if available and you should always run the update command first):

    Code:
    sudo apt-get update
    sudo apt-get upgrade
    Stick with the kernel you have and you know is working for now. You don't want to confuse the issue by installing a kernel which may have other issues and break the system in some other way (or cause a totally different wireless problem). And maybe you could also post back the result of:

    Code:
    sudo lshw -C network
    Thanks.

    PS: In Software Centre, do you have b43-fwcutter and b43-firmware-installer (that last one could be wrong but do a search for b43 and you'll find it)?
    Last edited by Bucky Ball; July 2nd, 2012 at 02:34 PM.

  6. #6
    Join Date
    Feb 2008
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    Ubuntu 12.04 Precise Pangolin

    Re: Inspiron 15R 5520 failure to detect wireless device

    Hi, I to believe as well at the moment your device is not supported by ubuntu the only option you have is to use ndiswrapper, I have not helped anyone with ndiswrapper before so it is really not my area of expertise but here is a link.
    https://help.ubuntu.com/community/Wi...er/Ndiswrapper
    Thanks

  7. #7
    Join Date
    Jun 2012
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    Re: Inspiron 15R 5520 failure to detect wireless device

    Thank you both wildemann39 and Bucky Ball

    I tried Bucky's suggestion. And there was no different result in additional drivers. There are various b43 options in the software centre. I installed the two you mentioned but there was no effect on the wireless so far. And none of the listed packages' descriptions indicated that it is designed for the 4365 device.

    The result from the commad reads as follows as far as the wireless is concerned:

    Code:
    sudo lshw -C network
          
          *-network UNGEFORDERT
               Beschreibung: Network controller
               Produkt: Broadcom Corporation
               Hersteller: Broadcom Corporation
               Physische ID: 0
               Bus-Informationen: pci@0000:08:00.0
               Version: 01
               Breite: 64 bits
               Uhr: 33MHz
               Fähigkeiten: pm msi pciexpress bus_master cap_list
               Konfiguration: latency=0
               Ressourcen: memory:c1500000-c1507fff
    @wildeman
    If you are right and the device is currently unsupported, will it be likely that a proper driver will become available within reasonable time? I fear that ndiswrapper is not really an option for me. I still wonder, why the machine is certified for Ubuntu 11.10 and does not work with 12.04.

    Thanks for all your help!

  8. #8
    Join Date
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    Ubuntu 12.04 Precise Pangolin

    Re: Inspiron 15R 5520 failure to detect wireless device

    Hi, it is very hard to tell, you can have a look at the link in post 2.

    If you know the driver the device used in 11.10 then we might be able to add it.
    Thanks

  9. #9
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    Re: Inspiron 15R 5520 failure to detect wireless device

    Yea, do you still have 11.10 installed by any chance? You could run this again:

    Code:
    sudo lshw -C network
    ... in 11.10 and that would give you the driver being used and other details. I also wonder why, if it 'just worked' in 11.10, it is not doing the same in 12.04. Can't imagine its drivers would have been taken out. But then, 12.04 is new and there will be glitches.

  10. #10
    Join Date
    Jun 2012
    Beans
    9

    Re: Inspiron 15R 5520 failure to detect wireless device

    Thanks for all your answers. Since I bought this computer only last week I don't have 11.10 on it. Can it be possible that Dell changed the device since certification? The one listed here for Inspiron 5520 looks different to me: http://www.ubuntu.com/certification/...77/components/. On the other hand, the description in the link from post 2 clearly states that the same device worked in 11.10.

    It seems however that developers are working on the problem. The Problem with Broadcom [14e4:4365] was dealt with here: https://bugs.launchpad.net/ubuntu/+s...ux/+bug/921911 and then moved to here: https://bugs.launchpad.net/ubuntu/+s...ux/+bug/863051 since both devices seem to require the same driver. I guess I'll just have to wait and hope.

    Thanks for your time and effort!

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