Ubuntu – Installing Wi-Fi driver for Realtek Semiconductor RTL8723DE Device [10ec:d723]

driversnetworkingrealtek-wirelesswireless

How do I install Wi-Fi drivers for Realtek RTL8723DE device in Ubuntu 16.04?

lspci -v | grep -i network
02:00.0 Network controller: Realtek Semiconductor Co., Ltd. Device d723

Best Answer

You may use the driver hosted at Larry Finger's rtlwifi_new git repository. You would have to disable secure boot from the the BIOS/EFI first. Also make sure you have linux-headers for the respective kernel(s) and build-essential package installed. Then follow the steps below (you need to be connected to the internet by some other mean).

Install git and dkms if they're not installed by running
```
sudo apt install git dkms
```

Clone the repository

git clone -b extended --single-branch https://github.com/lwfinger/rtlwifi_new.git

Run the following commands to install

sudo dkms add rtlwifi_new
sudo dkms install rtlwifi-new/0.6

Reboot.

This should also work with newer kernels (and hence on Ubuntu 18.04 too).

Note: If you get very weak signal try changing your antenna selection

sudo tee /etc/modprobe.d/rtl8723de.conf <<< "options rtl8723de ant_sel=2"

(or ant_sel=1 if 2 doesn't help).

(Source)

See this for Bluetooth: How to activate bluetooth device for RTL8723DE?

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Just go to the drivers section and activate the driver. But as far as I'm concerned you'll need an Internet connection to install it (i.e. LAN). At least that worked for me, but I use Ubuntu GNOME 13.10

Why do you want to install Ubuntu 12.04?

Ubuntu – How to activate bluetooth device for RTL8723DE

Support for this bluetooth device had been just added to the 4.17rc kernel.

The code can be easily backported to kernels 4.4 - 4.15. I made a PPA with DKMS packages for bionic and xenial with the updated btrtl module.

It can be installed by

sudo add-apt-repository ppa:hanipouspilot/bluetooth
sudo apt update
sudo apt install btrtl-rtl8723de-dkms

You may also need firmware for this device if it is not there. Look into your /lib/firmware/rtl_bt directory. If there are no rtl8723d_config.bin and rtl8723d_fw.bin files, clone the latest linux-firmware by

git clone git://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git

and get the files from there. It is not that hard. Sorry that I forgot to add the firmware to the package.

The DKMS should survive kernel upgrades.

Important!: Ubuntu 18.04 has the 5.3 HWE kernel now. REMOVE this package if you are on 5.3+ kernels. Otherwise BT won't work.

Best Answer

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