Public bug reported:
After upgrading to 18.04, on xfce4 with Display Power Management (xfce4
-power-manager) enabled, and any of the three sliders set to non-zero,
then when the time limit is hit after inactivity the screen goes black
with a cursor flashing. Two Xorg logs are created when this happens (see
attached). Ctrl-Alt-F# will switch to other ttys at this point, but only
briefly before switching back to the one that is black with a single
flashing cursor.
(I would expect things to happen as in 17.10, namely that the displays
blank/switch off as selected, and then when further input is given they
unblank/switch on.)
lsb_release -rd:
Description: Ubuntu 18.04 LTS
Release: 18.04
apt-cache policy xfce4-power-manager:
xfce4-power-manager:
Installed: 1.6.1-0ubuntu1
Candidate: 1.6.1-0ubuntu1
Version table:
*** 1.6.1-0ubuntu1 500
500 http://gb.archive.ubuntu.com/ubuntu bionic/universe amd64 Packages
100 /var/lib/dpkg/status
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: xfce4-power-manager 1.6.1-0ubuntu1
ProcVersionSignature: Ubuntu 4.15.0-29.31-generic 4.15.18
Uname: Linux 4.15.0-29-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.20.9-0ubuntu7.2
Architecture: amd64
CurrentDesktop: XFCE
Date: Wed Jul 25 21:10:33 2018
InstallationDate: Installed on 2017-05-13 (438 days ago)
InstallationMedia: Xubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412)
SourcePackage: xfce4-power-manager
UpgradeStatus: Upgraded to bionic on 2018-07-16 (9 days ago)
** Affects: xfce4-power-manager (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug bionic
** Attachment added: "Xorg.log.tar.gz"
https://bugs.launchpad.net/bugs/1783637/+attachment/5167786/+files/Xorg.log.tar.gz
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https://bugs.launchpad.net/bugs/1783637
Title:
xfce4-power-manager causes X to exit when blanking
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