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I don't have Wifi on my laptop (Dell, Linux Ubuntu 20.04 no dualboot) since I rebooted it. Before, I had no problem and I did not change anything. On the reboot, I had a blue screen talking about "MOK Management" and I choose to "Continue boot". Once on the OS, resolution has been changed and I lost Wifi options. I rebooted it again, resolution has came back to normal but still no Wifi. Oh and I can't connect though Ethernet either.

Here are some infos, sorry for the quality I had to take it myself with my phone : kernel 5.11, Wifi Intel AX201 https://ibb.co/N24wzrt

I saw a lot of answers about it but I can't make it works so if you can help me, it would be great.

EDIT :

Result of sudo modprobe iwlwifi && sudo dmesg | grep iwl :

modprobe: ERROR: ../libkmod/libkmod-module.c:838 kmod_module_insert_module() could not find module by name='iwlwifi'
modprobe: ERROR: could not insert 'iwlwifi': Unknown symbol in module, or unknown parameter (see dmesg)

EDIT 2 :

Empty result for sudo dmesg | grep iwl

Result for sudo dkms status : backport-iwlwifi, 8324: added

Result for modinfo iwlwifi | grep filename : modinfo: ERROR: Module iwlwifi not found.

Maxime Picard
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  • Start by disabling Secure Boot in UEFI and troubleshoot from there. – ChanganAuto Sep 10 '21 at 13:54
  • @ChanganAuto I checked and disabled it already, did not resolve anything – Maxime Picard Sep 10 '21 at 14:03
  • Please edit your question to show the result of the terminal command: `sudo modprobe iwlwifi && sudo dmesg | grep iwl` Welcome to Ask Ubuntu. – chili555 Sep 10 '21 at 16:10
  • @chili555 Done, and thanks for the welcoming :) – Maxime Picard Sep 10 '21 at 16:41
  • Verrry interesting! May we now see: `sudo dmesg | grep iwl` and also: `sudo dkms status` and finally: `modinfo iwlwifi | grep filename` – chili555 Sep 10 '21 at 19:40
  • @chili555 Done ! Hope it will help, because it does not give me any clue as a newbie :D – Maxime Picard Sep 10 '21 at 20:04
  • Please try: `sudo dkms remove backport-iwlwifi/8613 --all` Reboot and show us again: `modinfo iwlwifi | grep filename` – chili555 Sep 10 '21 at 21:11
  • @chili555 The remove command show `Error! There are no instances of module: backport-iwlwifi 8613 located in the DKMS tree`. But the autocomplete show me a backport-iwlwifi/8324. Same message after reboot for the `modinfo` command – Maxime Picard Sep 10 '21 at 21:15
  • Let us [continue this discussion in chat](https://chat.stackexchange.com/rooms/129483/discussion-between-chili555-and-maxime-picard). – chili555 Sep 10 '21 at 21:35
  • In our chat, we learned thet the package *linux-modules-extra* that provides the driver iwlwifi, among others, was not installed. We therefore undertook the same fix as the duplicate and all is working as expected. – chili555 Sep 10 '21 at 22:40
  • @chili555 Thanks again for your time, you're amazing ! – Maxime Picard Sep 10 '21 at 22:41
  • J’étais heureux de le faire, mon ami! – chili555 Sep 10 '21 at 22:44

0 Answers0