Linux Mint 21 – wifi disappeared?

  • Question


    I’m using Mint 21 on an HP 17-y002na laptop. It’s been connected via ethernet cable for much of the time since I updated to 21, but has had wifi capability at times. Last week I noticed that the symbol showing ethernet connection was absent from my panel, but wired connection still works. Unplugged, I get no wifi options or connection

    Since then I have tried to sort it to no avail, and I think I may be doing more harm than good, so I’m asking for help. Current situation is:

    iwconfig returns

    `lo no wireless extensions.`

    `eno1 no wireless extensions.`

    sudo lspci -nnkv shows (amongst other things not related to wifi)

    `03:00.0 Network controller [0280]: Broadcom Inc. and subsidiaries BCM43142 802.11b/g/n [14e4:4365] (rev 01)`

    `DeviceName: WLAN Broadcom 43142 bgn 1×1`
    `Subsystem: Hewlett-Packard Company BCM43142 802.11b/g/n [103c:804a]`
    `Flags: bus master, fast devsel, latency 0, IRQ 31`
    `Memory at f0b00000 (64-bit, non-prefetchable) [size=32K]`
    `Capabilities: [40] Power Management version 3`
    `Capabilities: [58] Vendor Specific Information: Len=78 <?>`
    `Capabilities: [48] MSI: Enable- Count=1/1 Maskable- 64bit+`
    `Capabilities: [d0] Express Endpoint, MSI 00`
    `Capabilities: [100] Advanced Error Reporting`
    `Capabilities: [13c] Virtual Channel`
    `Capabilities: [160] Device Serial Number 00-00-01-ff-ff-bb-68-14`
    `Capabilities: [16c] Power Budgeting <?>`
    `Kernel driver in use: bcma-pci-bridge`
    `Kernel modules: bcma, wl`

    If I try to run ‘sudo modprobe -r bcma && sudo modprobe wl’ I get ‘modprobe: ERROR: could not insert ‘wl’: Invalid argument’ reported

    The contents of /etc/modprobe.d/blacklist-bcm43.conf

    `# Warning: This file is autogenerated by bcmwl. All changes to this file will b>`

    `blacklist b43`

    `blacklist b43legacy`

    `blacklist ssb`

    `#blacklist bcm43xx`

    `blacklist brcm80211`

    `blacklist brcmfmac`

    `blacklist brcmsmac`

    `#blacklist bcma`

    Wifi is (still) enabled in my BIOS/UEFI set up

    I do want to be able to use it without having to be ethernet connected

    Any information, advice or guidance appreciated. Thank you in advance,


    Edit – Driver Manager shows I am using bcmwl-kernel-source version\~22.04.1

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  • Replies
      Did you try just running Driver Manager and installing the recommended driver?
      sudo apt install bcmwl-kernel-source


      inxi -Nxx
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