I’ve been doing a lot of Linux Mint installations lately and one very annoying thing that I found in 2 laptops was the non availability of WiFi driver. Apparently, it’s a new hardware and is not in the Linux kernel.
The hardware is
Realtek device d723. This new WiFi hardware is being shipped in new PCs and laptops now. Without having the internet, one can’t do almost anything. So it’s important to have this fixed up.
UPDATE : Ubuntu 18.04 will have the driver support
Open a terminal and do the command
lspci. You will see all the PCI devices of your system. If you have the
d723 device, you can see it at the bottom :
Or to quickly know if you have the
d723 WiFi hardware, do :
lspci | grep d723
smlinux has made a driver for
d723. Compiling it and installing it will help you connect to WiFi.
First step is to identify the version of your Linux kernel :
The driver is different according to the Linux kernel version. Only the driver to download will vary. Rest of the installation steps are the same.
First, install the packages necessary for building :
sudo apt-get install build-essential dkms
Now according to the kernel version download the driver :
4.11 and up
If the Linux kernel version is 4.11 or greater (>=4.11), then download this file :
wget -d -c -O 'rtl8723de.zip' https://github.com/smlinux/rtl8723de/archive/4.11-up.zip
4.10 and down
If the Linux kernel version is 4.10 or below (<=4.10), then download this file :
wget -d -c -O 'rtl8723de.zip' https://github.com/smlinux/rtl8723de/archive/4.10-down.zip
Build & Install
Now let’s build the driver and install it.
After the download of the driver zip file, extract it :
Go into the extracted folder, build it and install it :
cd rtl8723de make sudo make install
After the installation, restart your computer. After the restart, you’ll be able to connect to WiFi :