I just did another update with headers (actually 5.4.0-58-generic).
I put back notifications from settings before rebooting, and it seems to working perfectly now.
I did apt autoremove after reboot, while I did it before the reboot the first time (cf my post #7).
Hello, me again.
I just did another update with headers (actually 5.4.0-58-generic).
I put back notifications from settings before rebooting, and it seems to working perfectly now.
I did apt autoremove after reboot, while I did it before the reboot the first time (cf my post #7).