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.