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Realtek Rtl8821CU Driver Installation in Ubuntu 20.04 – Step-by-step

January 12, 2022 | By the+gnu+linux+evangelist.

Installing

  1. 2. Enabling Realtek rtl8821CU Driver PPA

    Add Realtek rtl8821CU Driver PPA for Ubuntu GNU/Linux

    Enabling Realtek rtl8821CU Driver Repo for Ubuntu

  2. 3. Installing Realtek rtl8821CU Driver

    Then to Install Realtek rtl8821CU Driver in Linux
    Currently 2 Flavors of the Driver are available.
    For the default one run:

    sudo apt install rtl8821cu-dkms

    Instead for the Latest Kernels you may try:

    sudo apt install rtl8821cu-next-dkms

    Finally, in case of Issue to remove it:

    sudo apt-get purge rtl8821cu*

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