[Bug 2148306] Re: Idle inhibition persists when updates are pending, preventing screen blanking
Nathan Teodosio
2148306 at bugs.launchpad.net
Thu Apr 16 09:46:07 UTC 2026
> I think bug 2133012 is saying it was briefly fixed in Ubuntu 26.04 and
then unfixed. So in theory this bug exists once again in 26.04.
Yes, that reading is right for the sleep inhibition. Now that Apt itself
inhibits sleep[1], at least in 26.04 way to go here is to make the
function a no-op. This way we do not regress ubuntu-release-upgrader.
[1]https://salsa.debian.org/apt-
team/apt/-/commit/c1607f538559a0b7a1d3f9dc01e88190e543053d
** Changed in: update-manager (Ubuntu)
Importance: Undecided => Low
** Changed in: update-manager (Ubuntu)
Assignee: (unassigned) => Nathan Teodosio (nteodosio)
** Changed in: update-manager (Ubuntu)
Status: New => Triaged
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https://bugs.launchpad.net/bugs/2148306
Title:
Idle inhibition persists when updates are pending, preventing screen
blanking
Status in update-manager package in Ubuntu:
Triaged
Bug description:
This is maybe gnome-shell, maybe gnome-settings-daemon but I could
only list one in the input field earlier.
Ubuntu version: 24.04
Desktop: GNOME
Observed behavior:
When updates are pending (system or browser), the system fails to enter idle state (screen does not blank or suspend after inactivity or overnight).
Expected behavior:
Pending updates should not inhibit screen blanking or suspend. Idle inhibition should only occur during active user-facing tasks.
Impact:
Causes display to remain on for extended unattended periods (e.g., overnight), leading to unnecessary power consumption and potential display wear.
Reproduction notes:
Occurs when:
browser restart required after update (chromium-based, e.g. Google Chrome, Brave)
system restart required
pending package updates
intern at intern:~$ systemd-inhibit --list
WHO UID USER PID COMM WHAT >
ModemManager 0 root 1680 ModemManager sleep >
NetworkManager 0 root 1569 NetworkManager sleep >
UPower 0 root 2486 upowerd sleep >
Unattended Upgrades Shutdown 0 root 1809 unattended-upgr shutdown >
GNOME Shell 1000 intern 3360 gnome-shell sleep >
UpdateManager 1000 intern 43705 update-manager shutdown:sleep >
intern 1000 intern 3498 gsd-power handle-lid-switch >
intern 1000 intern 3494 gsd-media-keys handle-power-key:handle-suspen>
intern 1000 intern 3494 gsd-media-keys sleep >
intern 1000 intern 3498 gsd-power sleep >
intern 1000 intern 3316 gnome-session-b sleep >
11 inhibitors listed.
intern at intern:~$ gdbus call --session \
--dest org.gnome.ScreenSaver \
--object-path /org/gnome/ScreenSaver \
--method org.gnome.ScreenSaver.GetActive
(false,)
intern at intern:~$ gsettings get org.gnome.desktop.session idle-delay
uint32 120
intern at intern:~$ gdbus call --session \
--dest org.gnome.Mutter.IdleMonitor \
--object-path /org/gnome/Mutter/IdleMonitor/Core \
--method org.gnome.Mutter.IdleMonitor.GetIdletime
(uint64 8,)
intern at intern:~$ gdbus call --session \
--dest org.gnome.Mutter.IdleMonitor \
--object-path /org/gnome/Mutter/IdleMonitor/Core \
--method org.gnome.Mutter.IdleMonitor.GetIdletime
(uint64 7,)
intern at intern:~$ gdbus call --session --dest org.gnome.Mutter.IdleMonitor --object-path /org/gnome/Mutter/IdleMonitor/Core --method org.gnome.Mutter.IdleMonitor.GetIdletime
(uint64 8,)
intern at intern:~$
ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: xorg 1:7.7+23ubuntu3
ProcVersionSignature: Ubuntu 6.14.0-37.37~24.04.1-generic 6.14.11
Uname: Linux 6.14.0-37-generic x86_64
ApportVersion: 2.28.1-0ubuntu3.8
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CasperMD5CheckResult: pass
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Tue Apr 14 08:18:58 2026
DistUpgraded: Fresh install
DistroCodename: noble
DistroVariant: ubuntu
DkmsStatus: virtualbox/7.0.16, 6.14.0-37-generic, x86_64: installed
ExtraDebuggingInterest: Yes
GraphicsCard:
Advanced Micro Devices, Inc. [AMD/ATI] Phoenix1 [1002:15bf] (rev c9) (prog-if 00 [VGA controller])
Subsystem: Emdoor Digital Technology Co., Ltd Phoenix1 [2782:12b3]
InstallationDate: Installed on 2025-02-05 (433 days ago)
InstallationMedia: Ubuntu 24.04.1 LTS "Noble Numbat" - Release amd64 (20240827.1)
MachineType: System76 Pangolin
ProcEnviron:
LANG=en_US.UTF-8
PATH=(custom, no user)
SHELL=/bin/bash
TERM=xterm-256color
XDG_RUNTIME_DIR=<set>
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.14.0-37-generic root=UUID=ae3a10de-ee20-4956-acf7-84ad1414cd63 ro quiet splash vt.handoff=7
SourcePackage: xorg
Symptom: display
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 09/27/2023
dmi.bios.release: 0.1
dmi.bios.vendor: American Megatrends International, LLC.
dmi.bios.version: APX928_V00.01_T0008ASY1_ms
dmi.board.asset.tag: Default string
dmi.board.name: Pangolin
dmi.board.vendor: System76
dmi.board.version: pang14
dmi.chassis.asset.tag: Default string
dmi.chassis.type: 10
dmi.chassis.vendor: System76
dmi.chassis.version: Default string
dmi.ec.firmware.release: 11.13
dmi.modalias: dmi:bvnAmericanMegatrendsInternational,LLC.:bvrAPX928_V00.01_T0008ASY1_ms:bd09/27/2023:br0.1:efr11.13:svnSystem76:pnPangolin:pvrpang14:rvnSystem76:rnPangolin:rvrpang14:cvnSystem76:ct10:cvrDefaultstring:skuAPX928:
dmi.product.family: Phoenix
dmi.product.name: Pangolin
dmi.product.sku: APX928
dmi.product.version: pang14
dmi.sys.vendor: System76
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.125-1ubuntu0.1~24.04.1
version.libgl1-mesa-dri: libgl1-mesa-dri 25.2.8-0ubuntu0.24.04.1
version.libgl1-mesa-glx: libgl1-mesa-glx N/A
version.xserver-xorg-core: xserver-xorg-core 2:21.1.12-1ubuntu1.5
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:22.0.0-1build1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20210115-1build1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.17-2ubuntu0.1
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