Ready for this one?
I haven't used my DisplayLink adapter in a few weeks, the drivers have long been uninstalled.
This week I was having some memory problems, related to the 16GB I updated to back in Sept. I finally isolated the bad DIMM, so I am running on one 8GB. I decided to boot into single user mode to double check this one with memtest overnight (this included a fsck of the main HD).
This morning I rebooted, and I have no login screen...I guess the location and login, and my Finder is crashing, just like I had the DL drivers installed. I ran the uninstaller from my Desktop, and it said no drivers found (which was correct).
I rebooted, and the login screen was there that time. I had to leave for work, but I thought this was a very bizarre issue.
TL;DR: I had the no login/Finder crashing problem with NO DisplayLink drivers installed after I ran memtest in single user mode overnight.
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