Screensaver stops responding to input until killed

[Paul]

Occasionally, kscreenlocker_greet stops responding to any user input. The mouse cursor changes to a text input cursor when hovering over the password field (which you would expect for an X program), but typing, hitting Escape, etc. have no effect. The only way to unlock the screen is to kill the kscreenlocker_greet process from a VT, after which it restarts and works normally.

This would greatly befuddle a casual user.

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: libkscreenlocker5 5.12.6-0ubuntu0.1
ProcVersionSignature: Ubuntu 4.15.0-23.25-generic 4.15.18
Uname: Linux 4.15.0-23-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.2
Architecture: amd64
Date: Wed Jul 18 10:06:56 2018
InstallationDate: Installed on 2018-03-12 (127 days ago)
InstallationMedia: Kubuntu 18.04 LTS "Bionic Beaver" - Alpha amd64 (20180310)
SourcePackage: kscreenlocker
UpgradeStatus: No upgrade log present (probably fresh install)

[Scarlett Gately Moore (scarlettmoore)]

This bug is very old, if it is still an issue please update the bug with info from a supported release.

[Launchpad Janitor (janitor)]

[Expired for kscreenlocker (Ubuntu) because there has been no activity for 60 days.]