Thanks. Those both show gnome-shell is idle and not frozen in any obvious way. So that gives me two ideas:
* I wonder if this is one of those rare cases where it's starting on the wrong VT. Please try: Ctrl+Alt+F4, Ctrl+Alt+F2 etc and see if you can find the missing session when it appears to freeze.
* I wonder if the 'qxl' kernel graphics driver is failing to report (virtual) presentation events with correct timestamps. That would cause the apparently idle symptoms we are seeing and is also a bug we've seen in the VMware kernel driver (fixed a long time ago).
Thanks. Those both show gnome-shell is idle and not frozen in any obvious way. So that gives me two ideas:
* I wonder if this is one of those rare cases where it's starting on the wrong VT. Please try: Ctrl+Alt+F4, Ctrl+Alt+F2 etc and see if you can find the missing session when it appears to freeze.
* I wonder if the 'qxl' kernel graphics driver is failing to report (virtual) presentation events with correct timestamps. That would cause the apparently idle symptoms we are seeing and is also a bug we've seen in the VMware kernel driver (fixed a long time ago).