well first I removed 5.40.0-42 and a newer one (don’t remember)
everything was fine so I decided to update the system
it install a nvidia-5 driver and I got this big screen
I followed answer 1 at this topic but didn’t install sddm
now I cannot use another driver from the list
because I always got this error
do I upgrade to new kernels to fix this issue ?
(hopefully won’t take a bad effect in my audio config)
ok, my sound config is gone again 
Why did you follow to install bumblebee? It’s for hybrid cards?
Run the software updater and click “partial upgrade”.
I didn’t install bumblebee, just update the one I had
but didn’t use the partial upgrade option
ok!!!
believe it or not, I got it working again 
what I did… after reading several pages, most of them with likely same command I did this
reboot and enter terminal instead of login
removed all nvidia packages
removed all audio and alsa packages (still not working)
sudo rm /var/lib/apt/lists/lock
sudo rm /var/lib/dpkg/lock
sudo rm /var/lib/dpkg/lock-frontend
sudo dpkg --configure -a
sudo apt clean
sudo apt update --fix-missing
sudo apt install -f
sudo dpkg --configure -a
sudo apt upgrade
sudo apt dist-upgrade
sudo reboot
then when I reboot I still didn’t got correctly set my config, but!
I reinstall gnome-software
in additional drivers I change to the nouveau driver, didn’t change anything
then I install again ubuntu-drivers and run
sudo ubuntu-drivers autoinstall
reboot and voila!
now I have to get back my sound
you are Super Persistent +1 - well done 
