Keywords: Realtek, RTL823, WiFI, Ubuntu 18.04, Ubuntu 19.04, Ubuntu 19.10, DKMS, HP, rtl8192ce, rtl8192cu, rtl8192se, rtl8192de, rtl8188ee, rtl8192ee, rtl8723ae, rtl8723be, rtl8821ae, rtl8822be, rtl8723de
If you are having a HP laptop and facing issue regarding WiFi adaptor not found, then it might be due to absence of Realtek WiFi driver.
If you have installed Realtek WiFi driver in past and it’s gone now after kernel update or upgrade, then you have to reinstall them using DKMS method. DKMS stands for Dynamic Kernel Module Support support. And it will work in each kernel on your system.
You need to manually download and install the driver. In order to download and install the driver you need to connect your laptop to internet using Ethernet cable.
In this post we will download newest Realtek WiFi driver source for – (rtl8192ce, rtl8192cu, rtl8192se, rtl8192de, rtl8188ee, rtl8192ee, rtl8723ae, rtl8723be, rtl8821ae, rtl8822be and rtl8723de). We will use ‘git’ and ‘DKMS’ tool for downloading and installation of the required drivers.
Please follow the steps mentioned below to download and install Realtek WiFi drivers in Ubuntu 18.04, Ubuntu 19.04 & Ubuntu 19.10.
Step 1. Install ‘git’, ‘DKMS’ and other required tools.
Execute the below command in the terminal.
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$ sudo apt install git build-essential dkms |
Step 2. Download the Realtek Wifi Driver Source using ‘git’
Execute following command to download the source code.
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$ git clone -b extended https://github.com/lwfinger/rtlwifi_new.git |
Step 3. Link the driver source with ‘dkms’
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$ sudo dkms add ./rtlwifi_new |
Step 4. Install the driver
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$ sudo dkms install rtlwifi-new/0.6 |
If no error occurs, you will see the out-put something like below screenshot.
Step 5. Reboot the system.
If you still do not see wifi driver first reboot the system before going to Step 6.
Step 6. Load the driver manually
Execute following command
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$sudo modprobe -r <module-name> && sudo modprobe <module-name> $ sudo modprobe -r rtl8723de && sudo modprobe rtl8723de |
Step 6. Update the configuration file if module does not load automatically after restart
Execute following command
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$ echo "options rtl8723de ant_sel=3" | sudo tee /etc/modprobe.d/rtl8723de.conf |
Note: I have used ant-sel=3, You can try by changing this between 1-4. It’s related to signal strength.
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Note: The featured image of this post is a screen-shot captured in Ubuntu 19.04 and is property of Ubuntu.
