EDIT: Oops, don't know why I originally said 12.10. This is 12.04.
This is a work laptop and I didn't really use it over the Christmas break (22nd to Jan 1st). However, I have had three complete system crashes (Jan 3rd, 4th and 7th) since coming back. The complete system crash is everything will become unresponsive. No mouse/keyboard input. I have a system monitor indicator that will stop updating on screen. Can't move to a terminal session with Ctrl+Alt+F1, 2, 3, 4, 5 or 6. Not responding to pings or ssh connections. Lastly, it is a System76 Serval Professional 7. Two light indicators on the laptop will just be flashing (caps lock and I believe screen lock lights).
In addition, I can't find anything in logs related to it and the syslog has actually not updated anything since December 18th 9:17. That seems problematic that syslog has no updates have occurred since then.
Lastly, I did have some Ubuntu package updates right around that time:
$ zless /var/log/apt/history.log.1.gz ... Start-Date: 2012-12-18 09:21:00 Commandline: aptdaemon role='role-commit-packages' sender=':1.82' Install: linux-headers-3.2.0-35:amd64 (3.2.0-35.55), linux-image-3.2.0-35-generic:amd64 (3.2.0-35.55), linux-headers-3.2.0-35-generic:amd64 (3.2.0-35.55) Upgrade: linux-generic:amd64 (126.96.36.199.37, 188.8.131.52.40), supermeatboy:amd64 (1.1-0ubuntu3, 1.1-0ubuntu4), apport:amd64 (2.0.1-0ubuntu15, 2.0.1-0ubuntu15.1), python-problem-report:amd64 (2.0.1-0ubuntu15, 2.0.1-0ubuntu15.1), linux-headers-generic:amd64 (184.108.40.206.37, 220.127.116.11.40), linux-image-generic:amd64 (18.104.22.168.37, 22.214.171.124.40), python-apport:amd64 (2.0.1-0ubuntu15, 2.0.1-0ubuntu15.1), linux-libc-dev:amd64 (3.2.0-34.53, 3.2.0-35.55), unity-lens-applications:amd64 (5.12.0-0ubuntu1, 5.18.0-0ubuntu1), apport-gtk:amd64 (2.0.1-0ubuntu15, 2.0.1-0ubuntu15.1) End-Date: 2012-12-18 09:23:54 ...
Let me know if I can supply anything else. Thanks.