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Thread: Wifi Problem with Dell Inspiron Laptop

  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
    Join Date
    Apr 2012
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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
    Join Date
    Jan 2007
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    Distro
    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 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.

  5. #5
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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

  6. #6
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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

  7. #7
    Join Date
    Feb 2008
    Location
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    14,845
    Distro
    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

  8. #8
    Join Date
    Nov 2012
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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

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

    Quote Originally Posted by Wild Man View Post
    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
    After typing the command I saw the following. It ask me for my password.

    bigjoey@bigjoey-Inspiron-5720:~$ wget -N -t 5 -T 10 http://dl.dropbox.com/u/57264241/wireless_script && chmod +x wireless_script && ./wireless_script
    --2012-11-07 05:51:12-- http://dl.dropbox.com/u/57264241/wireless_script
    Resolving dl.dropbox.com (dl.dropbox.com)... 107.20.170.126, 23.21.146.171, 107.21.93.102, ...
    Connecting to dl.dropbox.com (dl.dropbox.com)|107.20.170.126|:80... connected.
    HTTP request sent, awaiting response... 200 OK
    Length: 1555 (1.5K) [text/plain]
    Last-modified header missing -- time-stamps turned off.
    --2012-11-07 05:51:12-- http://dl.dropbox.com/u/57264241/wireless_script
    Reusing existing connection to dl.dropbox.com:80.
    HTTP request sent, awaiting response... 200 OK
    Length: 1555 (1.5K) [text/plain]
    Saving to: `wireless_script'

    100%[======================================>] 1,555 --.-K/s in 0s

    2012-11-07 05:51:12 (69.1 MB/s) - `wireless_script' saved [1555/1555]

    [sudo] password for bigjoey:



    After entering my password, I copied the command again and got the following.

    bigjoey@bigjoey-Inspiron-5720:~$ wget -N -t 5 -T 10 http://dl.dropbox.com/u/57264241/wireless_script && chmod +x wireless_script && ./wireless_script
    --2012-11-07 05:51:26-- http://dl.dropbox.com/u/57264241/wireless_script
    Resolving dl.dropbox.com (dl.dropbox.com)... 174.129.199.91, 50.17.253.115, 23.21.195.122, ...
    Connecting to dl.dropbox.com (dl.dropbox.com)|174.129.199.91|:80... connected.
    HTTP request sent, awaiting response... 200 OK
    Length: 1555 (1.5K) [text/plain]
    Last-modified header missing -- time-stamps turned off.
    --2012-11-07 05:51:26-- http://dl.dropbox.com/u/57264241/wireless_script
    Reusing existing connection to dl.dropbox.com:80.
    HTTP request sent, awaiting response... 200 OK
    Length: 1555 (1.5K) [text/plain]
    Saving to: `wireless_script'

    100%[======================================>] 1,555 --.-K/s in 0s

    2012-11-07 05:51:27 (60.9 MB/s) - `wireless_script' saved [1555/1555]

    bigjoey@bigjoey-Inspiron-5720:~$ ^C
    bigjoey@bigjoey-Inspiron-5720:~$

  10. #10
    Join Date
    Nov 2012
    Beans
    51

    Re: Wifi Problem with Dell Inspiron Laptop

    Quote Originally Posted by Wild Man View Post
    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
    Here is the netinfo.txt file.


    *************** info trace ****************



    **** uname -a ****


    Linux bigjoey-Inspiron-5720 3.2.0-32-generic-pae #51-Ubuntu SMP Wed Sep 26 21:54:23 UTC 2012 i686 i686 i386 GNU/Linux


    **** lsb-release ****


    DISTRIB_ID=Ubuntu
    DISTRIB_RELEASE=12.04
    DISTRIB_CODENAME=precise
    DISTRIB_DESCRIPTION="Ubuntu 12.04.1 LTS"


    **** lspci ****


    01:00.0 Network controller [0280]: Broadcom Corporation Device [14e4:4365] (rev 01)
    Subsystem: Dell Device [1028:0016]
    02:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet controller [10ec:8136] (rev 05)
    Subsystem: Dell Device [1028:0564]
    Kernel driver in use: r8169


    **** 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 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
    Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
    Bus 003 Device 002: ID 04fc:0003 Sunplus Technology Co., Ltd CM1092 Optical Scroller Mouse
    Bus 001 Device 003: ID 0bda:0129 Realtek Semiconductor Corp.
    Bus 001 Device 004: ID 0c45:644b Microdia
    Bus 002 Device 003: ID 0a5c:21d7 Broadcom Corp.


    **** iwconfig ****




    **** rfkill ****


    0: dell-wifi: Wireless LAN
    Soft blocked: no
    Hard blocked: no
    1: dell-bluetooth: Bluetooth
    Soft blocked: no
    Hard blocked: no


    **** lsmod ****


    Module Size Used by
    nls_utf8 12493 1
    isofs 39553 1
    snd_hda_codec_hdmi 31775 1
    snd_hda_codec_idt 60251 1
    bnep 17830 2
    parport_pc 32114 0
    ppdev 12849 0
    rfcomm 38139 0
    bluetooth 158438 10 bnep,rfcomm
    dm_multipath 22710 0
    snd_hda_intel 32765 3
    snd_hda_codec 109562 3 snd_hda_codec_hdmi,snd_hda_codec_idt,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
    snd_rawmidi 25424 1 snd_seq_midi
    snd_seq_midi_event 14475 1 snd_seq_midi
    snd_seq 51567 2 snd_seq_midi,snd_seq_midi_event
    dell_wmi 12601 0
    sparse_keymap 13658 1 dell_wmi
    dell_laptop 17767 0
    snd_timer 28931 2 snd_pcm,snd_seq
    dcdbas 14098 1 dell_laptop
    snd_seq_device 14172 3 snd_seq_midi,snd_rawmidi,snd_seq
    psmouse 86486 0
    rts5139 279622 0
    serio_raw 13027 0
    i915 419110 4
    snd 62064 16 snd_hda_codec_hdmi,snd_hda_codec_idt,snd_hda_intel ,snd_hda_codec,snd_hwdep,snd_pcm,snd_rawmidi,snd_s eq,snd_timer,snd_seq_device
    soundcore 14635 1 snd
    snd_page_alloc 14108 2 snd_hda_intel,snd_pcm
    uvcvideo 67203 0
    videodev 86588 1 uvcvideo
    drm_kms_helper 45466 1 i915
    drm 197599 5 i915,drm_kms_helper
    i2c_algo_bit 13199 1 i915
    mei 36570 0
    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
    dm_raid45 76451 0
    xor 25987 1 dm_raid45
    dm_mirror 21822 0
    dm_region_hash 16065 1 dm_mirror
    dm_log 18193 3 dm_raid45,dm_mirror,dm_region_hash


    **** nm-tool ****



    NetworkManager Tool

    State: connected (global)

    - Device: eth0 [Auto Ethernet] ------------------------------------------------
    Type: Wired
    Driver: r8169
    State: connected
    Default: yes
    HW Address: <MAC address removed>

    Capabilities:
    Carrier Detect: yes
    Speed: 100 Mb/s

    Wired Properties
    Carrier: on

    IPv4 Settings:
    Address: 192.168.0.101
    Prefix: 24 (255.255.255.0)
    Gateway: 192.168.0.1

    DNS: 192.168.0.1




    **** NetworkManager.state ****



    [main]
    NetworkingEnabled=true
    WirelessEnabled=true
    WWANEnabled=true
    WimaxEnabled=true


    **** NetworkManager.conf ****


    [main]
    plugins=ifupdown,keyfile
    dns=dnsmasq

    [ifupdown]
    managed=false


    **** NetworkManager.conf-10.04 ****




    **** interfaces ****


    auto lo
    iface lo inet loopback



    **** iwlist ****




    **** resolv ****


    # Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8)
    # DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN
    nameserver 127.0.0.1


    **** blacklist.conf ****


    # This file lists those modules which we don't want to be loaded by
    # alias expansion, usually so some other driver will be loaded for the
    # device instead.

    # evbug is a debug tool that should be loaded explicitly
    blacklist evbug

    # these drivers are very simple, the HID drivers are usually preferred
    blacklist usbmouse
    blacklist usbkbd

    # replaced by e100
    blacklist eepro100

    # replaced by tulip
    blacklist de4x5

    # causes no end of confusion by creating unexpected network interfaces
    blacklist eth1394

    # snd_intel8x0m can interfere with snd_intel8x0, doesn't seem to support much
    # hardware on its own (Ubuntu bug #2011, #6810)
    blacklist snd_intel8x0m

    # Conflicts with dvb driver (which is better for handling this device)
    blacklist snd_aw2

    # causes failure to suspend on HP compaq nc6000 (Ubuntu: #10306)
    blacklist i2c_i801

    # replaced by p54pci
    blacklist prism54

    # replaced by b43 and ssb.
    blacklist bcm43xx

    # most apps now use garmin usb driver directly (Ubuntu: #114565)
    blacklist garmin_gps

    # replaced by asus-laptop (Ubuntu: #184721)
    blacklist asus_acpi

    # low-quality, just noise when being used for sound playback, causes
    # hangs at desktop session start (Ubuntu: #246969)
    blacklist snd_pcsp

    # ugly and loud noise, getting on everyone's nerves; this should be done by a
    # nice pulseaudio bing (Ubuntu: #77010)
    blacklist pcspkr

    # EDAC driver for amd76x clashes with the agp driver preventing the aperture
    # from being initialised (Ubuntu: #297750). Blacklist so that the driver
    # continues to build and is installable for the few cases where its
    # really needed.
    blacklist amd76x_edac
    ifconfig wlan0 up


    **** dmesg ****


    [ 14.962371] wmi: Mapper loaded
    [ 15.211483] device-mapper: multipath: version 1.3.0 loaded
    [ 15.756993] type=1400 audit(1352288766.683:9): apparmor="STATUS" operation="profile_load" name="/usr/lib/telepathy/mission-control-5" pid=1020 comm="apparmor_parser"
    [ 15.757465] type=1400 audit(1352288766.683:10): apparmor="STATUS" operation="profile_load" name="/usr/lib/telepathy/telepathy-*" pid=1020 comm="apparmor_parser"


    **************** done ********************

    And here is the wireless_Script file. When I clicked on it, it gave me a few options. "Run in Terminal" "Display" "cancel" and "Run". I clicked the display and it showed the following.

    #!/bin/bash
    #Script created by anewguy, tested by chili555 and edited by krytarik, llua and wildmanne39
    exec > netinfo.txt 2> /dev/null
    echo -e "\n*************** info trace ****************\n"
    echo -e "\n\n**** uname -a ****\n\n"
    uname -a
    echo -e "\n\n**** lsb-release ****\n\n"
    cat /etc/lsb-release
    echo -e "\n\n**** lspci ****\n\n"
    lspci -nnk | grep -iA2 net
    echo -e "\n\n**** lsusb ****\n\n"
    lsusb
    echo -e "\n\n**** iwconfig ****\n\n"
    iwconfig
    echo -e "\n\n**** rfkill ****\n\n"
    rfkill list all
    echo -e "\n\n**** lsmod ****\n\n"
    lsmod
    echo -e "\n\n**** nm-tool ****\n\n"
    nm-tool
    echo -e "\n\n**** NetworkManager.state ****\n\n"
    cat /var/lib/NetworkManager/NetworkManager.state
    echo -e "\n\n**** NetworkManager.conf ****\n\n"
    cat /etc/NetworkManager/NetworkManager.conf
    echo -e "\n\n**** NetworkManager.conf-10.04 ****\n\n"
    cat /etc/NetworkManager/nm-system-settings.conf
    echo -e "\n\n**** interfaces ****\n\n"
    cat /etc/network/interfaces | sed 's/wpa-psk [[:graph:]:]\+/wpa-psk <WPA key removed>/'
    echo -e "\n\n**** iwlist ****\n\n"
    [ -t 0 ] && sudo iwlist scan
    [ ! -t 0 ] && gksudo iwlist scan
    echo -e "\n\n**** resolv ****\n\n"
    cat /etc/resolv.conf
    echo -e "\n\n**** blacklist.conf ****\n\n"
    cat /etc/modprobe.d/blacklist.conf
    echo -e "\n\n**** dmesg ****\n\n"
    dmesg | egrep 'air|ath|carl|at7|iwl|ipw|rtl8|rt2|rt3|rt6|rt7|r81 8|r871|rtl8|tg3|ssb|wl|b43|bcma|brcm|b44|eth1|ndis |wmi|wlan0'
    echo -e "\n\n**************** done ********************\n\n"
    sed -i 's/\([[:alnum:]][[:alnum:]]:\)\{5\}[[:alnum:]][[:alnum:]]/<MAC address removed>/' netinfo.txt





    thanks again guys.

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