Public bug reported:
I am using Ubuntu Desktop 22.10 on Raspberry Pi 4, and noticed a strange
behaviour of the screen saver.
In settings -> energy -> power saving options I selected Screen Blank
after 5 minutes. After 5 minutes of inactivity, the screen goes blank,
the monitor says No Signal and turns off, but a few seconds after it
turns on again, showing a completely black screen.
The desired behaviour here is that Ubuntu sends no signal to the
monitor, so the monitor goes into low-consumption mode. But this is not
happening, the monitor is on and showing a black screen.
I wonder how to solve this problem, especially given the current energy
situation in Europe.
This bug is related to the Ubuntu 22.04 LTS and 22.10 version.
ProblemType: Bug
DistroRelease: Ubuntu 22.10
Package: gnome-shell 43.0-1ubuntu2
ProcVersionSignature: Ubuntu 5.19.0-1009.16-raspi 5.19.7
Uname: Linux 5.19.0-1009-raspi aarch64
ApportVersion: 2.23.1-0ubuntu3
Architecture: arm64
CasperMD5CheckResult: unknown
CurrentDesktop: ubuntu:GNOME
Date: Sun Dec 4 21:31:27 2022
DisplayManager: gdm3
GsettingsChanges:
ImageMediaBuild: 20221018.1
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
LANG=pl_PL.UTF-8
SHELL=/bin/bash
RelatedPackageVersions: mutter-common 43.0-1ubuntu4
SourcePackage: gnome-shell
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: gnome-shell (Ubuntu)
Importance: Undecided
Status: New
** Tags: apport-bug arm64 arm64-image kinetic raspi-image
** Attachment added: "LogRPi4.txt"
https://bugs.launchpad.net/bugs/1998716/+attachment/5634373/+files/LogRPi4.txt
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https://bugs.launchpad.net/bugs/1998716
Title:
Ubuntu 22.10 does not turn off monitor
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