Restore WIFI after updating from nuveau to Nvidia drivers in Ubuntu

edit grub :

sudo nano /etc/default/grub

edit GRUB_TIMEOUT=10 (add 10 seconds to read entries)

comment #GRUB_TIMEOUT_STYLE=hidden

then run sudo update-grub

reboot, instead of select "Ubuntu", select "Advanced" then select an older kernel version without (Recovert). 

note that you need to count the entry position of your choice:

0 : ubuntu

1 : advanced

select 1

next menù:

0: ubuntu kernel 1

1: ubuntu kernel 1 recovery

2: ubuntu kernel 2

we select 1 ""advanced", then 2 for "ubuntu kernel 2"

 

after boot, wifi should works,  now we booted with an older version. we should now remove the new (broken kernel) and add redownload it and stop trying to trust Nvidia. 

dpkg -l | grep linux-image

 linux-image-5.19.0-21-generic                       
 linux-image-5.19.0-26-generic                       
 linux-image-5.19.0-28-generic                       
 linux-image-5.19.0-29-generic                       
 linux-image-generic-hwe-22.04                       
 linux-image-unsigned-5.19.0-29-generic              

so, purge the last one  linux-image-5.19.0-29-generic                      

sudo apt-get purge linux-image-5.19.0-29-generic          

sudo apt-get purge linux-headers-5.19.0-29-generic          

sudo apt autoremove

reboot

 

boh, it should works.