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Thread: No wifi adapters found Ubuntu 18.04

  1. #1
    Join Date
    Jul 2019
    Beans
    3

    No wifi adapters found Ubuntu 18.04

    I dual booted Ubuntu on a laptop I bought recently and it says there's no wifi adapters found. Here are the following outputs from the terminal:

    Code:
    sudo lshw -c net
      *-network UNCLAIMED       
           description: Network controller
           product: Intel Corporation
           vendor: Intel Corporation
           physical id: 0
           bus info: pci@0000:0c:00.0
           version: 1a
           width: 64 bits
           clock: 33MHz
           capabilities: pm msi pciexpress msix cap_list
           configuration: latency=0
           resources: memory:c2300000-c2303fff
      *-network
           description: Ethernet interface
           product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
           vendor: Realtek Semiconductor Co., Ltd.
           physical id: 0.1
           bus info: pci@0000:0d:00.1
           logical name: enp13s0f1
           version: 12
           serial: 80:fa:5b:85:1f:b9
           size: 1Gbit/s
           capacity: 1Gbit/s
           width: 64 bits
           clock: 33MHz
           capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
           configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=full firmware=rtl8411-2_0.0.1 07/08/13 ip=192.168.20.116 latency=0 link=yes multicast=yes port=MII speed=1Gbit/s
           resources: irq:18 ioport:3000(size=256) memory:c2204000-c2204fff memory:c2200000-c2203fff
    I've tried to git clone https://github.com/lwfinger/rtlwifi_new.git to fix this but it doesn't work.

    Code:
    sudo lsmod
    Module                  Size  Used by
    bnep                   20480  2
    snd_hda_codec_hdmi     49152  2
    nls_iso8859_1          16384  1
    x86_pkg_temp_thermal    16384  0
    intel_powerclamp       16384  0
    snd_hda_codec_realtek    94208  1
    coretemp               16384  0
    snd_hda_codec_generic    73728  1 snd_hda_codec_realtek
    kvm_intel             204800  0
    kvm                   593920  1 kvm_intel
    snd_hda_intel          40960  4
    irqbypass              16384  1 kvm
    snd_hda_codec         126976  4 snd_hda_intel,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_hda_codec_realtek
    crct10dif_pclmul       16384  0
    crc32_pclmul           16384  0
    snd_hda_core           81920  5 snd_hda_intel,snd_hda_codec,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_hda_codec_realtek
    snd_hwdep              20480  1 snd_hda_codec
    ghash_clmulni_intel    16384  0
    pcbc                   16384  0
    snd_pcm                98304  4 snd_hda_intel,snd_hda_codec,snd_hda_core,snd_hda_codec_hdmi
    uvcvideo               86016  0
    videobuf2_vmalloc      16384  1 uvcvideo
    videobuf2_memops       16384  1 videobuf2_vmalloc
    snd_seq_midi           16384  0
    videobuf2_v4l2         24576  1 uvcvideo
    snd_seq_midi_event     16384  1 snd_seq_midi
    videobuf2_core         40960  2 uvcvideo,videobuf2_v4l2
    btusb                  45056  0
    aesni_intel           188416  0
    btrtl                  16384  1 btusb
    btbcm                  16384  1 btusb
    snd_rawmidi            32768  1 snd_seq_midi
    aes_x86_64             20480  1 aesni_intel
    videodev              184320  3 uvcvideo,videobuf2_core,videobuf2_v4l2
    crypto_simd            16384  1 aesni_intel
    btintel                16384  1 btusb
    glue_helper            16384  1 aesni_intel
    joydev                 24576  0
    input_leds             16384  0
    cryptd                 24576  3 crypto_simd,ghash_clmulni_intel,aesni_intel
    snd_seq                65536  2 snd_seq_midi_event,snd_seq_midi
    intel_wmi_thunderbolt    16384  0
    media                  40960  2 uvcvideo,videodev
    bluetooth             548864  11 btrtl,btintel,bnep,btbcm,btusb
    serio_raw              16384  0
    snd_seq_device         16384  3 snd_seq,snd_rawmidi,snd_seq_midi
    snd_timer              32768  2 snd_seq,snd_pcm
    rtsx_pci_ms            20480  0
    snd                    81920  19 snd_hda_intel,snd_hwdep,snd_seq,snd_hda_codec,snd_timer,snd_rawmidi,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_seq_device,snd_hda_codec_realtek,snd_pcm
    memstick               16384  1 rtsx_pci_ms
    ecdh_generic           24576  1 bluetooth
    soundcore              16384  1 snd
    shpchp                 36864  0
    tpm_crb                16384  0
    intel_hid              16384  0
    acpi_pad              180224  0
    mac_hid                16384  0
    sparse_keymap          16384  1 intel_hid
    sch_fq_codel           20480  2
    parport_pc             36864  0
    ppdev                  20480  0
    lp                     20480  0
    parport                49152  3 lp,parport_pc,ppdev
    ip_tables              28672  0
    x_tables               40960  1 ip_tables
    autofs4                40960  2
    hid_generic            16384  0
    usbhid                 49152  0
    nouveau              1716224  0
    rtsx_pci_sdmmc         24576  0
    mxm_wmi                16384  1 nouveau
    i2c_algo_bit           16384  1 nouveau
    psmouse               147456  0
    ttm                   106496  1 nouveau
    drm_kms_helper        172032  1 nouveau
    nvme                   32768  0
    r8169                  86016  0
    syscopyarea            16384  1 drm_kms_helper
    ahci                   36864  0
    rtsx_pci               65536  2 rtsx_pci_sdmmc,rtsx_pci_ms
    sysfillrect            16384  1 drm_kms_helper
    mii                    16384  1 r8169
    sysimgblt              16384  1 drm_kms_helper
    fb_sys_fops            16384  1 drm_kms_helper
    nvme_core              61440  5 nvme
    libahci                32768  1 ahci
    drm                   401408  3 nouveau,ttm,drm_kms_helper
    i2c_hid                20480  0
    hid                   118784  3 i2c_hid,hid_generic,usbhid
    wmi                    24576  3 intel_wmi_thunderbolt,mxm_wmi,nouveau
    video                  45056  1 nouveau
    It'd be great if someone can help me with this issue

    Code:
    lspci -nnk | grep -iA2 net
    0c:00.0 Network controller [0280]: Intel Corporation Device [8086:2723] (rev 1a)
        Subsystem: Intel Corporation Device [8086:0084]
    0d:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTL8411B PCI Express Card Reader [10ec:5287] (rev 01)
    --
    0d:00.1 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 12)
        Subsystem: CLEVO/KAPOK Computer RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [1558:8520]
        Kernel driver in use: r8169
        Kernel modules: r8169
    Last edited by DuckHook; November 17th, 2020 at 02:16 AM. Reason: Removed interfering formatting.

  2. #2
    Join Date
    May 2014
    Location
    /home
    Beans
    9,189
    Distro
    Ubuntu 18.04 Bionic Beaver

    Re: No wifi adapters found Ubuntu 18.04

    Try Ubuntu 20.04 as the wifi should be supported

  3. #3
    Join Date
    Mar 2011
    Location
    19th Hole
    Beans
    Hidden!
    Distro
    Ubuntu 20.04 Focal Fossa

    Re: No wifi adapters found Ubuntu 18.04

    Hello avatarhzh,

    Please use the default fonts and styles when posting. Unusual fonts and styles are difficult to read for those on small screens or with compromised eyesight. Thanks!

  4. #4
    Join Date
    Jun 2010
    Location
    London, England
    Beans
    Hidden!
    Distro
    Ubuntu Development Release

    Re: No wifi adapters found Ubuntu 18.04

    If this laptop has Microsoft Windows installed and WiFi is switched off in Windows then when Ubuntu loads WiFi does not get switched on. Also, a laptop might used a combination of key presses to switch WiFi on & off to reduce battery usage. You might need to check the BIOS/UEFI settings utility to make sure that WiFi is switched on. Run this command

    Code:
    rfkill list
    If the printout says Soft blocked: yes then WiFi is switched off in software and a driver may be required. If the printout says Hard blocked: yes then the WiFi adapter is not switched on.

    Regards.


    Regards
    Last edited by grahammechanical; November 17th, 2020 at 02:29 AM.
    It is a machine. It is more stupid than we are. It will not stop us from doing stupid things.
    Ubuntu user #33,200. Linux user #530,530


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