Next time the problem starts happening please run:
journalctl -b0 > journal.txt
and attach the resulting text file here.
Separately, please also try selecting 'Ubuntu on Wayland' from the login screen, just before you enter your password.
Next time the problem starts happening please run:
journalctl -b0 > journal.txt
and attach the resulting text file here.
Separately, please also try selecting 'Ubuntu on Wayland' from the login screen, just before you enter your password.