Upgrade says "partial" due to Nvidia drivers or something

[Macoy Madson]

The upgrader showed up automatically saying it can only do a partial upgrade. I hit continue and the bug window appeared. It seems to be related to the Ubuntu desktop and the 3rd party Nvidia drivers I installed for my GTX 970.

Description: Ubuntu 16.04.3 LTS
Release: 16.04

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: ubuntu-release-upgrader-core 1:16.04.22
ProcVersionSignature: Ubuntu 4.4.0-97.120-generic 4.4.87
Uname: Linux 4.4.0-97-generic x86_64
NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia
ApportVersion: 2.20.1-0ubuntu2.10
Architecture: amd64
CrashDB: ubuntu
CurrentDesktop: Unity
Date: Sat Jul 21 11:11:14 2018
InstallationDate: Installed on 2016-02-12 (890 days ago)
InstallationMedia:

PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: No upgrade log present (probably fresh install)
VarLogDistupgradeTermlog: