I'm really not sure what's going on there. There's no evidence of a crash and if there is a hang then this looks like the last things gnome- shell said:
Mar 22 04:07:03 u-Inspiron-3670 gnome-shell[1577]: g_array_unref: assertion 'array' failed Mar 22 04:07:03 u-Inspiron-3670 gnome-shell[1577]: g_array_unref: assertion 'array' failed Mar 22 04:07:03 u-Inspiron-3670 gnome-shell[1577]: g_array_unref: assertion 'array' failed Mar 22 04:07:03 u-Inspiron-3670 gnome-shell[1577]: clutter_input_device_get_device_id: assertion 'CLUTTER_IS_INPUT_DEVICE (device)' failed Mar 22 04:07:03 u-Inspiron-3670 gnome-shell[1577]: clutter_input_device_get_device_id: assertion 'CLUTTER_IS_INPUT_DEVICE (device)' failed Mar 22 04:07:03 u-Inspiron-3670 gnome-shell[1577]: clutter_input_device_get_device_id: assertion 'CLUTTER_IS_INPUT_DEVICE (device)' failed Mar 22 04:07:03 u-Inspiron-3670 gnome-shell[1577]: clutter_input_device_get_device_id: assertion 'CLUTTER_IS_INPUT_DEVICE (device)' failed Mar 22 04:07:03 u-Inspiron-3670 gnome-shell[1577]: clutter_input_device_get_device_id: assertion 'CLUTTER_IS_INPUT_DEVICE (device)' failed Mar 22 04:07:03 u-Inspiron-3670 gnome-shell[1577]: clutter_input_device_get_device_id: assertion 'CLUTTER_IS_INPUT_DEVICE (device)' failed Mar 22 04:07:03 u-Inspiron-3670 gnome-shell[1577]: clutter_input_device_get_device_id: assertion 'CLUTTER_IS_INPUT_DEVICE (device)' failed Mar 22 04:07:03 u-Inspiron-3670 gnome-shell[1577]: clutter_input_device_get_device_id: assertion 'CLUTTER_IS_INPUT_DEVICE (device)' failed Mar 22 04:07:03 u-Inspiron-3670 gnome-shell[1577]: clutter_input_device_get_device_id: assertion 'CLUTTER_IS_INPUT_DEVICE (device)' failed Mar 22 04:07:11 u-Inspiron-3670 kernel: NVRM: GPU at PCI:0000:01:00: GPU-7eba71ac-fd71-c5c9-f569-09f6406e66c7 Mar 22 04:07:11 u-Inspiron-3670 kernel: NVRM: GPU Board Serial Number: Mar 22 04:07:11 u-Inspiron-3670 kernel: NVRM: Xid (PCI:0000:01:00): 16, Head 00000000 Count 00008a93 Mar 22 04:07:11 u-Inspiron-3670 gnome-shell[1577]: clutter_input_device_get_device_type: assertion 'CLUTTER_IS_INPUT_DEVICE (device)' failed Mar 22 04:07:11 u-Inspiron-3670 gnome-shell[1577]: JS ERROR: TypeError: device is null _init/<@resource:///org/gnome/shell/ui/keyboard.js:518:1 It's slightly interesting the kernel message from Nvidia is in the middle. ** Changed in: linux (Ubuntu) Status: Incomplete => New ** Changed in: nvidia-graphics-drivers-390 (Ubuntu) Status: Incomplete => New ** Changed in: nvidia-graphics-drivers-410 (Ubuntu) Status: Incomplete => New ** Also affects: gnome-shell (Ubuntu) Importance: Undecided Status: New -- 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/1821194 Title: [nvidia] Screen frozen after switch to other tty and do login & logout To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1821194/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs