A laptop with a fresh installation of 18.10 would not boot to the desktop.
Subsequently, I started with options and viewed my logs (journalctl -p err | grep gnome) and saw this message produced for process gnome-session-binary:
Unrecoverable failure in required component org.gnome.Shell.desktop
CRITICAL: We failed, but the fail whale is dead. Sorry....? Please edit your question adding the enabled extensions?gsettings get org.gnome.shell enabled-extensions | tr ', ' ',\n', might be useful also some info of your machine:inxi -SCGM -! 31 -y 80. – Pablo Bianchi Sep 18 '19 at 17:57