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.)
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: manager: gb.archive. ubuntu. com/ubuntu bionic/universe amd64 Packages dpkg/status
xfce4-power-
Installed: 1.6.1-0ubuntu1
Candidate: 1.6.1-0ubuntu1
Version table:
*** 1.6.1-0ubuntu1 500
500 http://
100 /var/lib/
ProblemType: Bug ature: Ubuntu 4.15.0- 29.31-generic 4.15.18 dules: nvidia
DistroRelease: Ubuntu 18.04
Package: xfce4-power-manager 1.6.1-0ubuntu1
ProcVersionSign
Uname: Linux 4.15.0-29-generic x86_64
NonfreeKernelMo
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)