Yes it appears the crash is: Dec 25 15:18:52 x1c5 gnome-session[3657]: gnome-session-binary[3657]: WARNING: App 'org.gnome.Shell.desktop' exited with code 1 Dec 25 15:18:52 x1c5 gnome-session-binary[3657]: WARNING: App 'org.gnome.Shell.desktop' exited with cod
which looks likely to be caused by: Dec 25 15:18:52 x1c5 gnome-shell[3813]: JS ERROR: Error: No valid stylesheet found for 'Yaru/gnome-shell.css' loadTheme@resource:///org/gnome/shell/ui/main.js:358:15 _loadDefaultStylesheet@resource:///org/gnome/shell/ui/main.js:306:5 _initializeUI@resource:///org/gnome/shell/ui/main.js:160:5 start@resource:///org/gnome/shell/ui/main.js:136:5 @<main>:1:31 Dec 25 15:18:52 x1c5 gnome-shell[3813]: Execution of main.js threw exception: Script <main> threw an exception So yes it does sound like a theming problem. My only suggestion right now is to find a way to reset/reinstall any theme-related changes you have made. That might fix it but it won't tell us exactly what kind of change caused the problem :( ** Changed in: gnome-shell (Ubuntu) Status: New => Incomplete ** Summary changed: - gnome-shell 3.30.1-2ubuntu1.18.10.1 prevents DE access (unable to login) + gnome-shell 3.30.1-2ubuntu1.18.10.1 fails to start with JS ERROR: Error: No valid stylesheet found for 'Yaru/gnome-shell.css' -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1809092 Title: gnome-shell 3.30.1-2ubuntu1.18.10.1 fails to start with JS ERROR: Error: No valid stylesheet found for 'Yaru/gnome-shell.css' To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1809092/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs