*** This bug is a duplicate of bug 2068107 ***
https://bugs.launchpad.net/bugs/2068107
Thank you but I figured the problem out. The evdi module was indeed the
problem and removing it allowed the upgrade to run to completion. The evdi
module was necessary to run DisplayLink which I no longer
Public bug reported:
this bug appeared during an upgrade. It appears to be related to the
audio card on my Asus laptop. I purchased the laptop with pre-installed
MS Windows and subsequently installed Ubuntu. So, I suspect there might
be a driver problem or some such although I don't know enough