Public bug reported:
I have exactly the same problem as OP here (and the others who chime in):
https://askubuntu.com/questions/1422776/energy-manager-error-when-reducing-screen-brightness-during-inactivity
Reported 1 year 8 months ago, still seems broken
LxQT Power Manager:
In the settings section for "inactivity", I check the option "enable backlight
change", in order to reduce the screen brightness after 1 minute of inactivity.
If I press the "Check Backlight" button, nothing happens.
Upon completion of 1 minute of inactivity, instead of the screen
brightness being reduced, I see the power/battery icon disappear, then
reappear a few times, then the system displays an alert of multiple
manager crash errors, resulting in its autorun being disabled.
Adjusting screen brightness via "lxqt-config-brightness" from "lxqt-
config" works fine
ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: lxqt-powermanagement 0.17.1-0ubuntu1
ProcVersionSignature: Ubuntu 6.5.0-28.29~22.04.1-generic 6.5.13
Uname: Linux 6.5.0-28-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 2.20.11-0ubuntu82.5
Architecture: amd64
CasperMD5CheckResult: unknown
CurrentDesktop: LXQt
Date: Wed Apr 24 10:03:12 2024
InstallationDate: Installed on 2023-10-31 (175 days ago)
InstallationMedia: Lubuntu 22.04.1 LTS "Jammy Jellyfish" - Release amd64
(20220809)
SourcePackage: lxqt-powermanagement
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: lxqt-powermanagement (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug jammy third-party-packages
** Summary changed:
- attempting to use idle brightness in lxqt-powermanagement leads to crash
+ attempting to use idle brightness in lxqt-powermanagement leads to crashin
22.04.4 LTS
** Summary changed:
- attempting to use idle brightness in lxqt-powermanagement leads to crashin
22.04.4 LTS
+ attempting to use idle brightness in lxqt-powermanagement leads to crash on
22.04.4 LTS
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https://bugs.launchpad.net/bugs/2063357
Title:
attempting to use idle brightness in lxqt-powermanagement leads to
crash on 22.04.4 LTS
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