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Thread: phy0 disappear (and no wifi scan) after installation of 18.04.4 LTS on lenovo s340

  1. #1
    Join Date
    Feb 2020
    Beans
    2

    phy0 disappear (and no wifi scan) after installation of 18.04.4 LTS on lenovo s340

    I am trying to install Ubuntu Mate 18.04.4 on my lenovo ideapad s340. The wifi is working when I try the OS via bootable usb as well as throughout the installation progress. I run the wireless info script and the result is as follows:
    https://pastebin.com/txRLhYPb


    However, after a fresh installation (third party driver installed as well), I cannot find any wireless network after I log in. The result of wireless info script is as follows:
    https://pastebin.com/5U3FSMyi


    I try out several methods in this forum as well as the Internet like "blacklist ideapad-laptop"... However, I guess the problem is not hard block due to the ideapad hotkey. As I am aware of, aafgarci (https://ubuntuforums.org/showthread.php?t=2436060) seems to have similar problem. When I tried to install 18.04.3 two months ago, the wifi was even not available throughout the installation progress. I used Windows in the mean time for my work.


    Please let me know if I can do anything. Thank you very much for your time.
    Last edited by hemanlmf; March 3rd, 2020 at 06:54 PM. Reason: Problem solved after reading the latest post

  2. #2
    Join Date
    Nov 2004
    Beans
    5

    Re: phy0 disappear (and no wifi scan) after installation of 18.04.4 LTS on lenovo s34

    yep, I have the same problem. Dell Inspiron 13 5000, WiFI works in the USB installer, but after installing it acts like there's no wifi adapter.

  3. #3
    Join Date
    Feb 2008
    Location
    Texas
    Beans
    29,818
    Distro
    Ubuntu 20.04 Focal Fossa

    Re: phy0 disappear (and no wifi scan) after installation of 18.04.4 LTS on lenovo s34

    Hello Jim Z, please start your own thread so you and the OP of this thread can get the individual help you both need, most of the time while the issue seems the same the cause is different.

    Thanks

  4. #4
    Join Date
    Feb 2020
    Beans
    2

    Re: phy0 disappear (and no wifi scan) after installation of 18.04.4 LTS on lenovo s34

    Many thanks to @chili555 in https://ubuntuforums.org/showthread.php?t=2437891, the problem is fixed by booting 5.3.0-28-generic kernel in grub now.

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