Overview：Most linux operating systems (such as Ubuntu) do not integrate Realtek RTL8821CE driver in the system library, so you can’t use WIFI in the operating system, and if you want to use WIFI networking, you need to install the driver manually. Here is how to install the driver:
Q：How to check the NIC model under Ubuntu system? A：After entering the system desktop, press Ctrl+Alt+T key combination to open “Terminal”, enter the following command to query the detailed network card model. sudo lshw -c network Enter the password and press Enter (e.g. 123456) PS: The password field will not be displayed, just press Enter to confirm after you finish typing. The network card models queried in the following figure are: (Wired NIC) RTL8111/8168/8411 (Wireless NIC) RTL8821CE
I. Prepare the installation environment 1-1. Use wired network to connect to the Internet, and install git and dkms tools first. Ctrl+Alt+T keys to open the terminal, and enter the following commands in the terminal: Update apt source sudo apt update Install the required software sudo apt install git
The installation was successful, type git --version to see the version.
1-2. sudo apt install build-essential build-essential is a C/C++ build environment bucket that installs all the packages needed to build C/C++.
sudo apt install dkms
DKMS stands for Dynamic Kernel Module Support and is used to maintain Linux drivers that are not integrated into the kernel.
Download Driver and Installation 2-1. Download the RTL8821CE driver, unzip it to the Downloads directory after downloading.
2-2. Open the terminal with Ctrl+Alt+T, and enter the following command in the terminal to open the directory where the driver file is located: ls cd Downloads cd Drives-Realtek-RTL8821CE-master cd Drives-Realtek-RTL8821CE-master PS: “Drives-Realtek-RTL8821CE-master” is the name of the folder, the name of your folder may not be the same as the one in this blog post, please enter the corresponding command according to the actual name of the folder or modify the filename by yourself!
2-3. Run the following commands in the terminal to compile the file and install the driver sudo make sudo make install sudo modprobe 8821ce sudo reboot If no error is reported during the installation, you can see the WIFI after reboot under normal circumstances.
Seems a bit strange to not be using screenshots?
But thanks for the guide.
Just use a second computer and a USB drive? Put the dkms package there too if needed (with dependencies).
There’s multiple ways to connect to network even without Wi-Fi. Wired:
Ethernet
USB Tethering from smartphone
PPP over serial (OK, I am just joking here)
Wireless:
Bluetooth (Multiple possible profiles: PAN, LAP, DUN.)I usually use Bluetooth unless I need more bandwidth. It saves me some battery on phone and it’s also more resilient to RFI as it uses FHSS. It’s much better for remote control using KDE connect than Wi-Fi. There’s almost no latency and lag.
Isn’t RTL8821CE Wi-Fi+Bluetooth? I think you wouldn’t be able to use Bluetooth without a functioning driver.
Alternatively, since we’re talking about Ubuntu, you could just open the driver manager and install the driver with a simple click of a button.
Same goes for Linux Mint.
