Screen locking issue data leak~

[Cass Stephen]

Closing laptop (HP-ProBook-6470b) lid lights go out and appears to sleep.

Opening lid displays last desktop & window contents, mouse cursor does move around but screen cannot be interacted with.

Then screen will flash repeatedly, 10 times or so.

Closing lid , waiting for sleep again, and reopening lid results in a login screen as expected.

ProblemType: Bug
DistroRelease: Ubuntu 18.10
Package: gnome-screensaver (not installed)
ProcVersionSignature: Ubuntu 4.18.0-11.12-generic 4.18.12
Uname: Linux 4.18.0-11-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.10-0ubuntu13.1
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Sat Nov 24 10:57:58 2018
InstallationDate: Installed on 2018-11-04 (19 days ago)
InstallationMedia: Ubuntu 18.10 "Cosmic Cuttlefish" - Release amd64 (20181017.3)
ProcEnviron:
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: gnome-screensaver
Symptom: security
Title: Screen locking issue
UpgradeStatus: No upgrade log present (probably fresh install)

[Eduardo Barretto (ebarretto)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. This particular bug has already been reported and is a duplicate of bug 1769383, so it is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Please continue to report any other bugs you may find