No WiFi adapter found in Ubuntu 18.04, HP Laptop 15q-bu0xx

I've installed my Ubuntu 18.04 with minimal installation mode with keeping the option to install WiFi drivers along. But still I couldn't use the WiFi, since the setting is showing that there is no WiFi devices found.

Attaching pastebin link from terminal outputs. Tried most of the solutions mentioned in forum like , sudo apt-get install --reinstall bcmwl-kernel-source

http://paste.ubuntu.com/p/52nm6tsyqz/

Code:

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sudo apt remove bcmwl-kernel-source && sudo apt install git dkms
git clone -b extended https://github.com/lwfinger/rtlwifi_new.git
sudo dkms add ./rtlwifi_new
sudo dkms install rtlwifi-new/0.6

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Reboot
If you notice weak signal try

Code:

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

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and see if it is better, if not do

Code:

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

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Wow! That was a huge help. Thanks.

thank you jeremy 31, Now wifi adapter is on.

Is there any way to do run this modrobe command automatically while booting up? It's becoming irritating to run this everytime inorder to connect to WiFi!

Yes

Code:

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

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Replace X with whatever setting worked best

HI,
I installed the minimal version of Ubuntu 18.04 and the problem is wifi gets disconnected and automatically airplane mode gets turned on which i couldn't disable manually. so I used the commands you have given and i rebooted it after few minutes the wifi option wasn't there and says "wifi adapter is not found " please help me out here.

Quote:

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Originally Posted by flash1996

HI,
I installed the minimal version of Ubuntu 18.04 and the problem is wifi gets disconnected and automatically airplane mode gets turned on which i couldn't disable manually. so I used the commands you have given and i rebooted it after few minutes the wifi option wasn't there and says "wifi adapter is not found " please help me out here.

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Please start your own new question and include the diagnostics report from here: https://ubuntuforums.org/showthread.php?t=370108

Hi @jeremy31,

Thanks for posting the solution but i tried the way you have asked and that didn't resolved my problem "wifi adapter is not found ". can you please help i have added logs for my device info over here https://pastebin.com/qzsL029z.

Hi jeremy
My laptop is Dell Inspiron 3442. I've also the same problem that showing '' no wifi adapter .''So I can't use wifi on my laptop that recently installed Ubuntu 18.04 alongside with window 10. I tried with your codes. The first line of codes work.But others do not.Please help.