Booting/Rebooting to the encrypted drive screen, doesn't allow you to type in the box. -- See Screenshot.
--It forces a reset of the VM in my case. The following boot takes you through the Grub2 screen, to a text prompt login that works and allows you to type and auth.
--After auth, it loads to the plasma5 login screen.
Hardware Profile = https://gist.github.com/anonymous/2c98a06b53d1729e2907
Imaged Attached.
ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: xorg 1:7.7+7ubuntu2
ProcVersionSignature: Ubuntu 3.18.0-13.14-generic 3.18.5
Uname: Linux 3.18.0-13-generic x86_64
ApportVersion: 2.16.1-0ubuntu2
Architecture: amd64
CurrentDesktop: KDE
Date: Mon Mar 2 22:35:55 2015
InstallationDate: Installed on 2015-03-03 (0 days ago)
InstallationMedia: Kubuntu 15.04 "Vivid Vervet" - Alpha amd64 (20150224.1)
SourcePackage: xorg
Symptom: display
UpgradeStatus: No upgrade log present (probably fresh install)
Ubuntu 15.04 (vivid) reached end-of-life on February 4, 2016.
This release of Ubuntu is no longer receiving maintenance updates. If this is still an issue using a maintained version of Ubuntu please let us know.
Paul White
[Ubuntu Bug Squad]