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I cant able to use WIFI in ubuntu LTS 20.04 operating system, Please help me on this to fix the issue.

As of now i am using the USB tethering.

I have ran command below:-

"sudo lshw|grep -A15 'network|Wireless' && lspci | grep BCM && sudo lspci -nnk | grep -i network -A2"

The results below for above command:-

       *-network
            description: Ethernet interface
            product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
            vendor: Realtek Semiconductor Co., Ltd.
            physical id: 0
            bus info: pci@0000:01:00.0
            logical name: enp1s0
            version: 15
            serial: 9c:5a:44:38:16:cf
            capacity: 1Gbit/s
            width: 64 bits
            clock: 33MHz
            capabilities: pm msi pciexpress msix bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
            configuration: autonegotiation=on broadcast=yes driver=r8169 firmware=rtl8168h-2_0.0.2 02/26/15 latency=0 link=no multicast=yes port=MII
            resources: irq:30 ioport:3000(size=256) memory:f0404000-f0404fff memory:f0400000-f0403fff
    *-pci:1

   *-network UNCLAIMED
        description: Network controller
        product: QCA9377 802.11ac Wireless Network Adapter
        vendor: Qualcomm Atheros
        physical id: 0
        bus info: pci@0000:02:00.0
        version: 31
        width: 64 bits
        clock: 33MHz
        capabilities: pm msi pciexpress cap_list
        configuration: latency=0
*-generic:1 UNCLAIMED
     description: Encryption controller
     product: Carrizo Platform Security Processor
     vendor: Advanced Micro Devices, Inc. [AMD]
     physical id: 8
     bus info: pci@0000:00:08.0
     version: 00

           description: Wireless interface
           product: Android
           vendor: Android
           physical id: 2
           bus info: usb@2:2
           version: 3.18
           serial: 83e3de9d7d34
           capabilities: usb-2.00
           configuration: driver=rndis_host maxpower=500mA speed=480Mbit/s
   *-usbhost:1
        product: xHCI Host Controller
        vendor: Linux 5.4.0-42-generic xhci-hcd
        physical id: 1
        bus info: usb@3
        logical name: usb3
        version: 5.04






*-network
       description: Ethernet interface
       physical id: 1
       bus info: usb@2:2
       logical name: usb0
       serial: 02:4d:d1:2b:75:be
       capabilities: ethernet physical
       configuration: broadcast=yes driver=rndis_host driverversion=22-Aug-2005 firmware=RNDIS device ip=192.168.42.200 link=yes multicast=yes
nobody
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Johnson Amalraj
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  • Please try this answer and report back. You might need to name your folder /lib/firmware/ath10k/QCA9377 – Raffles Sep 12 '20 at 12:22
  • Hi Raffles, your are told me to create folders under firmware as ath10k/QCA9377. Already the folder was present /lib/firmware/ath10k/QCA9377 – Johnson Amalraj Sep 13 '20 at 03:19
  • These problems are usually due to kernel, drivers or having secure boot enabled in BIOS/UEFI. Can you say what machine it is? – Raffles Sep 13 '20 at 09:32
  • My device is Lenovo E4125, Yes it's UEFI mode only, But in BIOS settings i have disabled the secure boot. Kindly let me know if there is any solution for this issue – Johnson Amalraj Sep 13 '20 at 19:10
  • Will try my best. Your UEFI mode and BIOS settings should be good. Do you see any drivers in the Additional Drivers tab in Software and Updates? – Raffles Sep 13 '20 at 21:59
  • And please make sure that there isn't a physical switch on your machine, usually a function key, which switches the WiFi on and off. – Raffles Sep 13 '20 at 22:09
  • There is no update in Additional drivers tab, I have already checked. There is no physical switch also.
    FYI, when I am using external WIFI adapter its working, build in adapter is not working. I think the latest ubuntu version only i faced the issue, pervious version the wifi is working     – Johnson Amalraj Sep 14 '20 at 05:26

0 Answers0