Also attaching the results of `sudo journalctl --dmesg --priority warning > journalctl_dmsg_warnings.log` it does seem to have some nvidia errors and tracebacks. It doesn't mean much to me, but perhaps it has useful information in it.
** Attachment added: "journalctl_dmsg_warnings.log" https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/2064037/+attachment/5772123/+files/journalctl_dmsg_warnings.log -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2064037 Title: GDM session crashes after returning from a screen-off. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/2064037/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs