Public bug reported:
WORKAROUND: replace gdm3 with slick-greeter + lightdm-settings + gnome-
screensaver
ERROR(syslog) = "Failed to get current display configuration state:
GDBus.Error:org.freedesktop.DBus.Error.NameHasNoOwner: Name
"org.gnome.Mutter.DisplayConfig" does not exist"
gnome-shell[3007]: JS ERROR: Exception in callback for signal: loaded:
TypeError: monitor is
null#012_prepareStartupAnimation@resource:///org/gnome/shell/ui/layout.js:653:17#012wrapper@resource:///org/gnome/gjs/modules/_legacy.js:82:22#012_loadBackground/signalId<@resource:///org/gnome/shell/ui/layout.js:608:13#012_emit@resource:///org/gnome/gjs/modules/signals.js:128:27#012_init/id<@resource:///org/gnome/shell/ui/background.js:512:17
CAUSE = clean install of Ubuntu 18.10(4.18.0-16-generic #17-Ubuntu SMP Fri Feb
8 00:06:57 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux), attach VGA as primary
monitor and HDMI(wireless Tx) as secondary to projector and then apply custom
monitor positioning using g-c-c "Displays" panel.
RESULT = correct positioning and working of multiple displays until reboot or
shutdown, then--problems until HDMI cable is unseated and rebooted again.
ProblemType: Bug
DistroRelease: Ubuntu 18.10
Package: gdm3 3.30.1-1ubuntu5.1
ProcVersionSignature: Ubuntu 4.18.0-16.17-generic 4.18.20
Uname: Linux 4.18.0-16-generic x86_64
ApportVersion: 2.20.10-0ubuntu13.2
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Sat Mar 16 13:50:52 2019
InstallationDate: Installed on 2019-03-07 (8 days ago)
InstallationMedia: Ubuntu 18.10 "Cosmic Cuttlefish" - Release amd64 (20181017.3)
SourcePackage: gdm3
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: gdm3 (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug cosmic
** Attachment added: "monitors.xml"
https://bugs.launchpad.net/bugs/1820423/+attachment/5246801/+files/monitors.xml
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https://bugs.launchpad.net/bugs/1820423
Title:
monitors.xml is not parsed or applied correctly after reboot or
shutdown
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