Public bug reported:

Systems fails to suspend (or resume) after toggling "Automatic suspend"
on then off.

Test case:
Start the system.
Set "Settings > Power > Automatic suspend" to "Never" for when the PC is 
plugged in.
Wait for some time.
Set "Settings > Power > Automatic suspend" back to "15 minutes".
Wait for some time.
The system goes to sleep but weirdley (the power LED stays of) and then can't 
be wakened up (and has to be rebooted).

Happens on a fully up to date Ubuntu 24.04 install on an Asus Zenbook UX410.
The problem has existed consistently across releases for years.

Nothing shows in journalctcl, as far as I know.
Last lines (reverse order) are:
vril 20 21:09:49 massada wpa_supplicant[2377]: nl80211: deinit ifname=wlp2s0 
disabled_11b_rates=0
avril 20 21:09:49 massada wpa_supplicant[2377]: wlp2s0: CTRL-EVENT-DSCP-POLICY 
clear_all
avril 20 21:09:49 massada kernel: PM: suspend entry (deep)
avril 20 21:09:49 massada systemd-sleep[75048]: Performing sleep operation 
'suspend'...
avril 20 21:09:49 massada wpa_supplicant[2377]: wlp2s0: CTRL-EVENT-DSCP-POLICY 
clear_all
avril 20 21:09:49 massada systemd[1]: Starting systemd-suspend.service - System 
Suspend...
avril 20 21:09:49 massada systemd[1]: Reached target sleep.target - Sleep.

ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: linux-image-6.11.0-24-generic 6.11.0-24.24~24.04.1
ProcVersionSignature: Ubuntu 6.11.0-24.24~24.04.1-generic 6.11.11
Uname: Linux 6.11.0-24-generic x86_64
ApportVersion: 2.28.1-0ubuntu3.5
Architecture: amd64
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC0:  guillaume   3088 F.... wireplumber
 /dev/snd/seq:        guillaume   3083 F.... pipewire
CRDA: N/A
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Sun Apr 20 22:23:24 2025
InstallationDate: Installed on 2025-01-21 (89 days ago)
InstallationMedia: Ubuntu 24.04.1 LTS "Noble Numbat" - Release amd64 
(20240827.1)
MachineType: ASUSTeK COMPUTER INC. UX410UAK
ProcEnviron:
 LANG=fr_FR.UTF-8
 PATH=(custom, no user)
 SHELL=/bin/bash
 TERM=xterm-256color
 XDG_RUNTIME_DIR=<set>
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-6.11.0-24-generic 
root=/dev/mapper/ubuntu--vg-ubuntu--lv ro quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-6.11.0-24-generic N/A
 linux-backports-modules-6.11.0-24-generic  N/A
 linux-firmware                             20240318.git3b128b60-0ubuntu2.11
SourcePackage: linux-hwe-6.11
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 04/17/2019
dmi.bios.release: 5.12
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: UX410UAK.312
dmi.board.asset.tag: ATN12345678901234567
dmi.board.name: UX410UAK
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: 1.0
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: ASUSTeK COMPUTER INC.
dmi.chassis.version: 1.0
dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvrUX410UAK.312:bd04/17/2019:br5.12:svnASUSTeKCOMPUTERINC.:pnUX410UAK:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnUX410UAK:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:sku:
dmi.product.family: ZenBook
dmi.product.name: UX410UAK
dmi.product.version: 1.0
dmi.sys.vendor: ASUSTeK COMPUTER INC.

** Affects: linux-hwe-6.11 (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug noble wayland-session

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https://bugs.launchpad.net/bugs/2107734

Title:
  Systems fails to suspend after Automatic suspend toggle

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