Comment by etfb

Well, that was fun. The upgrade crashed halfway through. I rebooted in recovery mode, finished the upgrade using the dpkg repair option, and then restarted a few times and found that it still wasn't working. Looked like a video problem, so I checked /etc/X11 and found the xorg.conf files had been backed up and not replaced. A comment in the last one inspired me to run nvidia-xconfig and it worked fine. Pretty typical when you use Nvidia drivers, and still a lot less painful than upgrading Windows XP to 7.