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Archives For November 30, 1999

How to Install RTL8723DE Wifi Driver in Ubuntu 19.04

Last updated: January 13, 2021

HP Linux Imaging and Printing

This tutorial is a rewritten of the previous ‘Fix ‘No WiFi Adapter Found’ for HP Laptops with Ubuntu 18.04‘, since wireless will stop working after installed or upgraded to a new Linux Kernel.

Following steps will install the newest Realtek rtlwifi codes including rtl8192ce, rtl8192cu, rtl8192se, rtl8192de, rtl8188ee, rtl8192ee, rtl8723ae, rtl8723be, rtl8821ae, rtl8822be and rtl8723de in Ubuntu with DKMS (Dynamic Kernel Module Support) support. So it will work in each kernel on your system.

1. Connect your laptop to a wired network, and then open terminal from application menu.

2. Run command to install some required tools:

sudo apt install git build-essential dkms

Type user password (no asterisk feedback due to security reason) when it prompts and hit Enter.

3. Now grab the rtlwifi_new codes via command:

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

4. Add the source to the tree for builds with DKMS support.

sudo dkms add ./rtlwifi_new

5. Finally install the drivers via command:

sudo dkms install rtlwifi-new/0.6

6. If everything works OK, Wifi should work immediately (it works in my case in Ubuntu 19.04).

If not, try commands to load the new installed module (rtl8723de in the case):

sudo modprobe -r rtl8723de && sudo modprobe rtl8723de

7. And Wifi works after reboot without doing any configuration, at least in my case in Ubuntu 19.04.

If not, try command to write it into configuration file (replace 3 to 1, 2 or 4 if signal is weak).

echo "options rtl8723de ant_sel=3" | sudo tee /etc/modprobe.d/rtl8723de.conf

In addition, if you happened to update your system with newest Kernel packages without reboot. You need to reinstall the kernel packages to get the module work after reboot.

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Fix ‘No WiFi Adapter Found’ for HP Laptops with Ubuntu 18.04

Last updated: January 13, 2021

This tutorial is a quick fix for HP laptops that wireless does not work on Ubuntu 18.04 Gnome desktop.

On my cheap laptop HP 246 G6 I found that the wireless network does not work out-of-box after installed Ubuntu 18.04. No wifi option in system tray menu, and System Settings says ‘No Wifi adapter found‘.

This happens on many HP devices including HP 15-bs000, 15-bs100, 15g-br000, 15q-bu000, and Pavilion 15-br000, HP 280 G3, 290 G1, and more. And the reason is Ubuntu does not support RTL8723de wifi driver.

Here’s what I did to fix no wifi adapter issue in Ubuntu 18.04:

1. Reboot and go to BIOS to make sure wireless network are enabled. And plug laptop into a wired connection.

2. Open terminal either via Ctrl+Alt+T shortcut key or by searching for ‘terminal’ from software launcher.

3.1 You may first install the building tools first via command:

sudo apt-get install linux-headers-$(uname -r) build-essential git

3.2 Run command to get the Realtek rtlwifi codes that includes rtl8192ce, rtl8192cu, rtl8192se, rtl8192de, rtl8188ee, rtl8192ee, rtl8723ae, rtl8723be, and rtl8821ae.:

git clone https://github.com/lwfinger/rtw88.git

4. In this terminal window, install the drivers via command:

cd rtw88/ && make && sudo make install

Type your password (no asterisk feedback) when it prompts and hit Enter.

5. If the installation success, run 2 commands load the new driver:

sudo modprobe -r rtl8723de

sudo modprobe rtl8723de

Wireless network starts working in my case:

6. If that does not work, you may remove and blacklist the broadcom drivers and restart:

sudo apt purge bcmwl-kernel-source

sudo sed -i '/blacklist bcma/ d' /etc/modprobe.d/blacklist.conf

sudo sed -i '/blacklist brcmsmac/ d' /etc/modprobe.d/blacklist.conf

In addition, (thanks to jeremy31) if you notice weak signal try command:

sudo modprobe -r rtl8723de && sleep 5 && sudo modprobe rtl8723de ant_sel=1

and see if it is better, if not run:

sudo modprobe -r rtl8723de && sleep 5 && sudo modprobe rtl8723de ant_sel=2

(REQUIRED) Or write the rule into configuration. REPLACE X with whatever setting (1, 2, or 3) worked best.

echo "options rtl8723de ant_sel=X" | sudo tee /etc/modprobe.d/rtl8723de.conf

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