No Wifi adapter in ubuntu 18.04.1 for hp 15-dy0004au, AMD Ryzen 3

[PhanidharSwarna]

Hello,
I installed ubuntu 18.04.1 along with windows 10 in dual boot[Secure boot disabled], WiFi seems to work perfectly in windows but when it comes to ubuntu 18.04 it just doesn't appear at all.
I tried to capture the results that will help in diagnosis 

the results are published to pastebinit @ http://paste.ubuntu.com/p/f9vqgcZ2cR/
can any expert help me to get this resolved please...!

[erico]

I recommend checling to see which kernel is installed. At the following Realtek Semiconductor web document the are Linux drivers by kernel number for the RT8111 NIC.

A Realtek RT8111 device is a LAN device, not wireless.

Be aware that as far as I understand, there is an Intel wireless adapter installed in the desktop. That is llikely to be why there are no drivers available. 

In the Windows 10 installation, check to see what is installed as a ethernet LAN device and wireless adapter by looking in the Device Manager.     

[PhanidharSwarna]

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@erico wrote:

I recommend checling to see which kernel is installed. At the following Realtek Semiconductor web document the are Linux drivers by kernel number for the RT8111 NIC.

A Realtek RT8111 device is a LAN device, not wireless.

Be aware that as far as I understand, there is an Intel wireless adapter installed in the desktop. That is llikely to be why there are no drivers available. 

In the Windows 10 installation, check to see what is installed as a ethernet LAN device and wireless adapter by looking in the Device Manager.     

---

---

@erico wrote:

I recommend checling to see which kernel is installed. At the following Realtek Semiconductor web document the are Linux drivers by kernel number for the RT8111 NIC.

A Realtek RT8111 device is a LAN device, not wireless.

Be aware that as far as I understand, there is an Intel wireless adapter installed in the desktop. That is llikely to be why there are no drivers available. 

In the Windows 10 installation, check to see what is installed as a ethernet LAN device and wireless adapter by looking in the Device Manager.     

---

---

@erico wrote:

I recommend checling to see which kernel is installed. At the following Realtek Semiconductor web document the are Linux drivers by kernel number for the RT8111 NIC.

A Realtek RT8111 device is a LAN device, not wireless.

Be aware that as far as I understand, there is an Intel wireless adapter installed in the desktop. That is llikely to be why there are no drivers available. 

In the Windows 10 installation, check to see what is installed as a ethernet LAN device and wireless adapter by looking in the Device Manager.     

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kernel installed: 4.15.0-36-generic

Adapter details: Realtek RTL8723DE 802.11b/g/n PCIe Adapter

[erico · Accepted solution]

A driver for the adapter is available in the GIT sources

See the following forum thread from 2017 which shows how to download and install with the appropriate terminal commands.

https://h30434.www3.hp.com/t5/Notebook-Wireless-and-Networking/Realtek-8723DE-wifi-module-amp-Blueto...

[PhanidharSwarna]

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@erico wrote:

A driver for the adapter is available in the GIT sources

See the following forum thread from 2017 which shows how to download and install with the appropriate terminal commands.

https://h30434.www3.hp.com/t5/Notebook-Wireless-and-Networking/Realtek-8723DE-wifi-module-amp-Blueto...

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A big thanks to you erico, i was able to resolve the issue

i am providing all the steps consolidated which may help any other user to get things done with just 3 simple steps.

Step1: Verify if your linux kernel is above 4.17 to check that simply type
uname -r
if it is not above 4.17 u should follow step 2 else u can jump to step 3

Step2: Download required files and install to upgrade your kernel to 4.18.14
wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.18.14/linux-headers-4.18.14-041814_4.18.14-041814.2...
wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.18.14/linux-headers-4.18.14-041814-generic_4.18.14-...
wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.18.14/linux-modules-4.18.14-041814-generic_4.18.14-...
wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.18.14/linux-image-unsigned-4.18.14-041814-generic_4...
sudo dpkg -i *.deb
now reboot your system and verify with step 1 to check if the kernel has been upgraded

Step3: Install the driver
sudo apt-get install dkms git build-essential

git clone -b extended https://github.com/lwfinger/rtlwifi_new.git
sudo dkms add ./rtlwifi_new
sudo dkms install rtlwifi-new/0.6
sudo cp -r rtlwifi_new/firmware/rtlwifi/ /lib/firmware/rtlwifi
echo "options rtl8723de ant_sel=2" | sudo tee /etc/modprobe.d/rtl8723de.conf

[cirogg]

Hello! Im new at Linux and using terminal and i have the same problem

Im at step 3. I cant execute the first line. it says that the "-b" is wrong. Can it be possible?

@PhanidharSwarna

@erico

[PhanidharSwarna]

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@cirogg wrote:

Hello! Im new at Linux and using terminal and i have the same problem

Im at step 3. I cant execute the first line. it says that the "-b" is wrong. Can it be possible?

@PhanidharSwarna

@erico

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There may be some representational error but this would be the actual CMD

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

[erico]

You have not stated which flavor of Linux you are running and that would help.

Open the terminal as a root user or use the sudo command as normal user and input the admin password when requested.

Once you have the terminal as a root user there should be no problem running the command.