We have been running a Debian 9 machine for some uptime tests.
The gui seems to hang occassionally, with some logs spewing about XID 62, most of the time.
We are able to reboot the machine, only after killing the Xorg process, and waiting a few minutes for the reboot to happen.
Based on an nvidia reference list for XIDs, it seems to mean that its a possible driver issue?
nvidia-bug-report-.log.gz (8.7 MB)