Public bug reported:
Whenever I lock my computer, or it goes into power saving mode
automatically, the monitors turn back on and show the lock screen a few
seconds later. This has persisted now for about a year, has persisted
across multiple upgrades (18.10, 19.04, 19.10) as well as complete
hardware replacement (CPU intel -> AMD, GPU nVidia -> AMD). So I'm
convinced this is a software bug.
The first line in logging that I can find that seems to trigger this is:
"gnome-shell[1967]: ../../../gobject/gsignal.c:2647: instance
'0x55daa50a2920' has no handler with id '145952'"
I update my system regularly, so this looks to either be a regression,
or uncaught bug. I don't know if other things are causing this, but
that's the first line (based on time) that is reported when it turns the
monitors back on.
ProblemType: Bug
DistroRelease: Ubuntu 19.10
Package: gnome-shell 3.34.1-1ubuntu1
ProcVersionSignature: Ubuntu 5.3.0-19.20-generic 5.3.1
Uname: Linux 5.3.0-19-generic x86_64
ApportVersion: 2.20.11-0ubuntu8.2
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Mon Nov 11 09:40:42 2019
DisplayManager: gdm3
InstallationDate: Installed on 2019-03-08 (247 days ago)
InstallationMedia: Ubuntu 18.10 "Cosmic Cuttlefish" - Release amd64 (20181017.3)
RelatedPackageVersions: mutter-common 3.34.1-1ubuntu1
SourcePackage: gnome-shell
UpgradeStatus: Upgraded to eoan on 2019-11-05 (5 days ago)
** Affects: gnome-shell (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug eoan
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https://bugs.launchpad.net/bugs/1852101
Title:
Monitors keep turning on when in power saving mode, every time.
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