Thanks. It looks like the login screen crashed; août 16 00:34:28 Aspire-E5-575G org.gnome.Shell.desktop[1624]: XIO: fatal IO error 4 (Appel système interrompu) on X server ":0" août 16 00:34:28 Aspire-E5-575G org.gnome.Shell.desktop[1624]: after 3038 requests (3038 known processed) with 3 events remaining.
but the user session did not crash. So it's possible the death of the login screen shell caused a VT switch and that made you think the user session was lost. So next time it happens please try pressing Ctrl+Alt+F2 to return to your session. I also noticed this, which will prevent Wayland from being used: août 16 00:34:23 Aspire-E5-575G systemd[1998]: org.gnome.Shell@wayland.service - GNOME Shell on Wayland was skipped because of an unmet condition check (ConditionEnvironment=XDG_SESSION_TYPE=wayland). août 16 00:34:23 Aspire-E5-575G systemd[1998]: Starting org.gnome.Shell@x11.service - GNOME Shell on X11... -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2076106 Title: Xorg freeze (black screen, only the X mouse cursor moving) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/2076106/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
