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Wi-fi not enable on Lenovo thinkpad L420 in Ubuntu 20.04

vn flag

I am new to Ubuntu. I tried installing Ubuntu 20.04 on my Lenovo L420 laptop, WiFi is not enabled. I checked WiFi adapter it is already enabled. Even Bluetooth is working.

After I installed Ubuntu 20.04 airplane mode is automatically enabled. Then I am not able to disable airplane mode.

I used this command to disable airplane mode sudo rfkill unblock all.

I checked in additional drivers list it is showing No additional drivers available.

enter image description here

I am new here please help me to solve this issue.

Note: In this same laptop I installed same Ubuntu 20.04 that time WiFi was working.

mchid avatar
bo flag
What does `rfkill list` return?
mchid avatar
bo flag
Also, try to toggle the wireless radio switch. It should be located on the right side of the laptop near the front.
Ramesh S avatar
vn flag
@mchid yes it is enabled already. `rfkill list` shows this one https://ibb.co/0KYm48V
mchid avatar
bo flag
Hard block refers to your hardware switch.
Ramesh S avatar
vn flag
@mchid: Am using Lenovo L420 thinkpad laptop. I enabled `wi-fi` toggle switch.
Ramesh S avatar
vn flag
@mchid please check this image I enabled wifi toggle https://ibb.co/SspyDrV
mchid avatar
bo flag
What does `lsmod | grep pad` return? Also, it's better to just paste the output into a reply or add it to the question as opposed to a screenshot.
mchid avatar
bo flag
If it returns `ideapad_laptop` please refer to [this answer](https://askubuntu.com/a/487210/167115)
mchid avatar
bo flag
If that command works, then refer to [this answer](https://askubuntu.com/a/484376/167115) to make the change permanent by blacklisting the module. Also, please let me know if it works and I will mark this question as a duplicate of the other question.
Ramesh S avatar
vn flag
@mchid: `lsmod | grep pad` returns this https://ibb.co/7J0jHyz
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