After an update, my system would no longer boot into the graphical login.

[Jordan Waughtal]

I use two graphics cards. Primary AMD RX480
                          Secondary Nvidia Quadro NVS 290
Both use opensource drivers.

When I updated yesterday, my computer no longer will boot with the Nvidia card installed.

I also created a thread on the forums.
https://ubuntuforums.org/showthread.php?t=2373392

ProblemType: Bug
DistroRelease: Ubuntu 17.10
Package: plymouth 0.9.2-3ubuntu17
ProcVersionSignature: Ubuntu 4.13.0-12.13-generic 4.13.3
Uname: Linux 4.13.0-12-generic x86_64
ApportVersion: 2.20.7-0ubuntu2
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Thu Oct 5 22:52:28 2017
DefaultPlymouth: /usr/share/plymouth/themes/ubuntu-logo/ubuntu-logo.plymouth
InstallationDate: Installed on 2017-09-19 (16 days ago)
InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Alpha amd64 (20170917)
MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M.
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.13.0-12-generic root=UUID=30372589-bba8-41d1-835c-009e1a46dfcc ro drm.debug=0xe plymouth:debug
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcFB: 0 amdgpudrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.13.0-12-generic root=UUID=30372589-bba8-41d1-835c-009e1a46dfcc ro drm.debug=0xe plymouth:debug
SourcePackage: plymouth
TextPlymouth: /usr/share/plymouth/themes/ubuntu-text/ubuntu-text.plymouth
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 06/03/2016
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: P3.40
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: X99 Extreme4
dmi.board.vendor: ASRock
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: To Be Filled By O.E.M.
dmi.chassis.version: To Be Filled By O.E.M.
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP3.40:bd06/03/2016:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnX99Extreme4:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
dmi.product.family: To Be Filled By O.E.M.
dmi.product.name: To Be Filled By O.E.M.
dmi.product.version: To Be Filled By O.E.M.
dmi.sys.vendor: To Be Filled By O.E.M.