Thanks. That log shows gnome-shell (for the login screen?) died because Xorg went away:
Feb 23 07:30:15 gnome-shell[3625]: gnome-shell: Fatal IO error 11 (Resource temporarily unavailable) on X server :0. Also there is evidence of a common freezing problem that happens with the Nvidia driver: Feb 23 08:31:40 gnome-shell[8333]: Window manager warning: MetaSyncRing: Sync object is not ready -- were events handled properly? Feb 23 08:31:40 gnome-shell[8333]: Window manager warning: MetaSyncRing: Sync object is not ready -- were events handled properly? Next please follow the instructions in comments #5 and #11 and attach the resulting text files here in full. Please also check for crashes from the system using these instructions: https://wiki.ubuntu.com/Bugs/Responses#Missing_a_crash_report_or_having_a_.crash_attachment ** Changed in: gnome-shell (Ubuntu) Status: New => Incomplete ** Changed in: gnome-shell-extension-ubuntu-dock (Ubuntu) Status: New => Incomplete ** Bug watch added: gitlab.gnome.org/GNOME/mutter/-/issues #1516 https://gitlab.gnome.org/GNOME/mutter/-/issues/1516 -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-shell in Ubuntu. https://bugs.launchpad.net/bugs/1912246 Title: [nvidia] gnome-shell freezes randomly after upgrading to groovy To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1912246/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
