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Thread: Dell Inspiron 17R SE 7720 / Intel 2230

  1. #1
    Join Date
    Apr 2013
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    Dell Inspiron 17R SE 7720 / Intel 2230

    I just bought my self a new laptop: Dell Inspiron 17R SE 7720 and installed Ubuntu 12.04.1 LTS 64 bits. However, my wireless connection isnt working... Actually, sometimes it will connect for like a minute and disconnect after that, but that is a rare occurrence. My wireless card is an intel2230. Since I'm new to Ubuntu, I'm not sure how to download dell drivers on Ubuntu. It seems that a lot of people with the Dell 17r have had that problem with wireless, according to my searches, but I haven't found a solution. Can somebody help me please?

    Thanks!

  2. #2
    Join Date
    Aug 2011
    Location
    Berlin, Germany
    Beans
    5,888
    Distro
    Ubuntu Gnome 14.04 Trusty Tahr

    Re: Problem with my wireless on Ubuntu

    Hi,

    please open a terminal with CTRL+ALT+T and show the outputs of these commands:
    Code:
    lspci -nnk | grep -iA2 net
    lsusb
    lsmod
    iwconfig
    rfkill list

  3. #3
    Join Date
    Apr 2013
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    1

    Re: Dell Inspiron 17R SE 7720 / Intel 2230

    root@ubuntu:~# lspci -nnk | grep -iA2 net
    01:00.0 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]
    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
    root@ubuntu:~# lsusb
    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 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 003: ID 0bda:0129 Realtek Semiconductor Corp.
    Bus 001 Device 004: ID 0c45:644b Microdia
    Bus 002 Device 003: ID 0a5c:21d7 Broadcom Corp.
    root@ubuntu:~# lsmod
    Module Size Used by
    pppoe 17511 2
    pppox 13158 1 pppoe
    ipt_MASQUERADE 12663 1
    iptable_filter 12706 1
    iptable_nat 12977 1
    nf_nat 20316 2 ipt_MASQUERADE,iptable_nat
    nf_conntrack_ipv4 14080 3 iptable_nat,nf_nat
    nf_conntrack 66307 4 ipt_MASQUERADE,iptable_nat,nf_nat,nf_conntrack_ipv 4
    nf_defrag_ipv4 12649 1 nf_conntrack_ipv4
    ip_tables 17791 2 iptable_filter,iptable_nat
    x_tables 21898 4 ipt_MASQUERADE,iptable_filter,iptable_nat,ip_table s
    bridge 79264 0
    stp 12811 1 bridge
    llc 14160 2 bridge,stp
    snd_hda_codec_hdmi 31423 1
    snd_hda_codec_idt 59761 1
    dell_wmi 12601 0
    sparse_keymap 13658 1 dell_wmi
    snd_hda_intel 32515 3
    snd_hda_codec 111547 3 snd_hda_codec_hdmi,snd_hda_codec_idt,snd_hda_intel
    snd_hwdep 13272 1 snd_hda_codec
    dell_laptop 17161 0
    dcdbas 14054 1 dell_laptop
    snd_pcm 80163 3 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec
    coretemp 13168 0
    kvm_intel 126745 0
    kvm 357806 1 kvm_intel
    microcode 18209 0
    snd_seq_midi 13132 0
    snd_rawmidi 25382 1 snd_seq_midi
    snd_seq_midi_event 14475 1 snd_seq_midi
    rts5139 281367 0
    btusb 17950 0
    snd_seq 51255 2 snd_seq_midi,snd_seq_midi_event
    uvcvideo 71277 0
    psmouse 84843 0
    videobuf2_core 32070 1 uvcvideo
    serio_raw 13031 0
    videodev 95841 2 uvcvideo,videobuf2_core
    videobuf2_vmalloc 12756 1 uvcvideo
    videobuf2_memops 13184 1 videobuf2_vmalloc
    snd_timer 24411 2 snd_pcm,snd_seq
    snd_seq_device 14137 3 snd_seq_midi,snd_rawmidi,snd_seq
    snd 61991 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
    lpc_ich 16925 0
    i915 457161 3
    mei 35796 0
    soundcore 14599 1 snd
    snd_page_alloc 14036 2 snd_hda_intel,snd_pcm
    drm_kms_helper 45271 1 i915
    drm 230463 4 i915,drm_kms_helper
    i2c_algo_bit 13197 1 i915
    video 18847 1 i915
    wmi 18590 1 dell_wmi
    parport_pc 31968 0
    ppdev 12817 0
    rfcomm 37276 16
    bnep 17707 2
    bluetooth 183228 22 btusb,rfcomm,bnep
    binfmt_misc 17260 1
    mac_hid 13037 0
    lp 13299 0
    parport 40753 3 parport_pc,ppdev,lp
    r8169 55976 0
    root@ubuntu:~# iwconfig
    ppp0 no wireless extensions.

    pan1 no wireless extensions.

    lo no wireless extensions.

    eth0 no wireless extensions.

    root@ubuntu:~# rfkill list
    0: hci0: Bluetooth
    Soft blocked: no
    Hard blocked: no

  4. #4
    Join Date
    Apr 2013
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    Re: Dell Inspiron 17R SE 7720 / Intel 2230

    timur@timur:~$ lspci -nnk | grep -iA2 net
    02:00.0 Network controller [0280]: Intel Corporation Centrino Wireless-N 2230 [8086:0887] (rev c4)
    Subsystem: Intel Corporation Centrino Wireless-N 2230 BGN [8086:4462]
    Kernel driver in use: iwlwifi
    --
    03:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet controller [10ec:8136] (rev 05)
    Subsystem: Dell Device [1028:0578]
    Kernel driver in use: r8169




    timur@timur:~$ 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 0bda:58bf Realtek Semiconductor Corp.
    Bus 002 Device 003: ID 8087:07da Intel Corp.



    timur@timur:~$ 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 0bda:58bf Realtek Semiconductor Corp.
    Bus 002 Device 003: ID 8087:07da Intel Corp.





    timur@timur:~$ lsmod
    Module Size Used by
    btusb 18332 2
    nls_utf8 12557 0
    udf 94613 0
    crc_itu_t 12707 1 udf
    bnep 18281 2
    rfcomm 47604 12
    bluetooth 180153 23 btusb,bnep,rfcomm
    parport_pc 32866 0
    nvidia 9367655 0
    ppdev 17113 0
    snd_hda_codec_hdmi 32474 1
    snd_hda_codec_idt 70795 1
    arc4 12529 2
    uvcvideo 72627 0
    snd_hda_intel 33719 3
    snd_hda_codec 127706 3 snd_hda_codec_hdmi,snd_hda_codec_idt,snd_hda_intel
    snd_hwdep 17764 1 snd_hda_codec
    snd_pcm 97275 3 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec
    rts5139 351188 0
    videodev 98259 1 uvcvideo
    snd_seq_midi 13324 0
    i915 477626 2
    v4l2_compat_ioctl32 17128 1 videodev
    snd_rawmidi 30748 1 snd_seq_midi
    snd_seq_midi_event 14899 1 snd_seq_midi
    drm_kms_helper 46978 1 i915
    drm 241971 3 i915,drm_kms_helper
    snd_seq 61929 2 snd_seq_midi,snd_seq_midi_event
    dell_laptop 18119 0
    psmouse 97485 0
    iwlwifi 401140 0
    snd_timer 29990 2 snd_pcm,snd_seq
    snd_seq_device 14540 3 snd_seq_midi,snd_rawmidi,snd_seq
    dcdbas 14490 1 dell_laptop
    i2c_algo_bit 13423 1 i915
    snd 79041 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
    dell_wmi 12681 0
    serio_raw 13211 0
    sparse_keymap 13890 1 dell_wmi
    video 19651 1 i915
    mei 41616 0
    soundcore 15091 1 snd
    mac80211 506862 1 iwlwifi
    snd_page_alloc 18529 2 snd_hda_intel,snd_pcm
    cfg80211 205774 2 iwlwifi,mac80211
    wmi 19256 1 dell_wmi
    mac_hid 13253 0
    lp 17799 0
    parport 46562 3 parport_pc,ppdev,lp
    r8169 62154 0





    timur@timur:~$ iwconfig
    lo no wireless extensions.


    wlan0 IEEE 802.11bgn ESSID:"ThomsonB0AFE0"
    Mode:Managed Frequency:2.462 GHz Access Point: 58:98:35:B0:AF:E0
    Bit Rate=1 Mb/s Tx-Power=16 dBm
    Retry long limit:7 RTS thrff Fragment thrff
    Power Managementff
    Link Quality=39/70 Signal level=-71 dBm
    Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
    Tx excessive retries:12 Invalid misc:21 Missed beacon:0


    eth0 no wireless extensions.




    timur@timur:~$ rfkill list
    0: dell-wifi: Wireless LAN
    Soft blocked: no
    Hard blocked: no
    1: dell-bluetooth: Bluetooth
    Soft blocked: no
    Hard blocked: no
    2: phy0: Wireless LAN
    Soft blocked: no
    Hard blocked: no
    4: hci0: Bluetooth
    Soft blocked: no
    Hard blocked: no

  5. #5
    Join Date
    Aug 2011
    Location
    Berlin, Germany
    Beans
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    Distro
    Ubuntu Gnome 14.04 Trusty Tahr

    Re: Dell Inspiron 17R SE 7720 / Intel 2230

    @ tannurishu:

    You need to install a patched driver version for this card:
    Code:
    sudo mkdir /usr/src/hybrid-portsrc_x86_64-5.100.82.112
    wget http://media.cdn.ubuntu-de.org/forum/attachments/10/06/2865859-hybrid-portsrc_x86_64-v5_100_82_112_patched_dkms.tar.gz
    sudo tar xvf 2865859-hybrid-portsrc_x86_64-v5_100_82_112_patched_dkms.tar.gz -C /usr/src/hybrid-portsrc_x86_64-5.100.82.112 
    sudo apt-get install --reinstall linux-headers-$(uname -r) linux-headers-generic build-essential dkms
    sudo dkms add -m hybrid-portsrc_x86_64 -v 5.100.82.112
    sudo dkms build -m hybrid-portsrc_x86_64 -v 5.100.82.112
    sudo dkms install -m hybrid-portsrc_x86_64 -v 5.100.82.112
    From here: http://forum.ubuntuusers.de/topic/w-...00-82-112-DKMS
    Do not activate the Broadcom-STA driver in "additional drivers"!!!

    @Timur Ridjanovic

    Deactivate the N-mode of your driver (bug)
    Code:
    echo "options iwlwifi 11n_disable=1" | sudo tee /etc/modprobe.d/iwlwifi.conf
    sudo modprobe -rfv iwlwifi
    sudo modprobe -v iwlwifi

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