Public bug reported:
When locking the screen via the xfce menu or light-locker tool the
screen sits at a blank/black screen. Moving the mouse or pressing a
button on the keyboard does nothing. After searching I found I could
just enter my password blindly and it would unlock the screen. Also
going to a console tty and back to the graphical login would then show a
login screen.
ProblemType: Bug
DistroRelease: Ubuntu 18.10
Package: lightdm 1.28.0-0ubuntu1
Uname: Linux 4.19.0-041900-generic x86_64
ApportVersion: 2.20.10-0ubuntu13
Architecture: amd64
CurrentDesktop: XFCE
Date: Thu Nov 8 13:29:14 2018
InstallationDate: Installed on 2017-11-06 (366 days ago)
InstallationMedia: Xubuntu 17.10 "Artful Aardvark" - Release amd64 (20171017.1)
LightdmConfig:
[LightDM]
logind-check-graphical=true
display-setup-script=xrandr --output eDP-1 --primary
SourcePackage: lightdm
UpgradeStatus: Upgraded to cosmic on 2018-10-22 (17 days ago)
** Affects: lightdm (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug cosmic
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https://bugs.launchpad.net/bugs/1802225
Title:
LightDM login doesn't display after screen lock
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