[Bug 2132095] Re: The machine didn’t go into suspend and got stuck

** Changed in: linux (Ubuntu Resolute)
Importance: Undecided => Medium

** Changed in: linux (Ubuntu Resolute)
Status: In Progress => Fix Released

** Changed in: linux (Ubuntu Questing)
Importance: Undecided => Medium

** Changed in: linux (Ubuntu Questing)
Status: In Progress => Fix Committed

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https://bugs.launchpad.net/bugs/2132095

Title:
The machine didn't go into suspend and got stuck

Status in linux package in Ubuntu:
Fix Released
Status in linux source package in Questing:
Fix Committed
Status in linux source package in Resolute:
Fix Released

Bug description:
SRU Justification
[Impact]
Dell Inspiron 7591 hangs while suspending.

[Fix]
The issue is from this commit after v6.16-rc1
07ac275981b1 platform/x86: alienware-wmi-wmax: Add support for manual fan control

And has been fixed by the commit in v6.18-rc3
a49c4d48c3b6 platform/x86: alienware-wmi-wmax: Fix NULL pointer dereference in sleep handlers

[Test]
Dell Inspiron 7591 shouldn't hang while doing suspend and resume test.

[Where problems could occur]
The commit is straightforward, it is not possible to introduce any regression.

===

[Summary]

During the SRU testing, I found there is one dell laptop didn't go into suspend on both -update and -proposed kernel.
After executing systemctl suspend, I can see the screen was off, but the power led didn't shows a breathing LED, then the system got stuck, only way to recover it was by power cycling.

After power cycling I used "journalctl -b -1" to see the previous log
and saw following log.

Nov 21 09:41:38 dell-inspiron-7591-c26881 systemd[1]: session-7.scope: Unit now frozen-by-parent.
Nov 21 09:41:38 dell-inspiron-7591-c26881 systemd[1]: user@1000.service: Unit now frozen-by-parent.
Nov 21 09:41:38 dell-inspiron-7591-c26881 systemd[1]: session-1.scope: Unit now frozen-by-parent.
Nov 21 09:41:38 dell-inspiron-7591-c26881 systemd[1]: user.slice: Unit now frozen.
Nov 21 09:41:38 dell-inspiron-7591-c26881 systemd[1]: user-1000.slice: Unit now frozen-by-parent.
Nov 21 09:41:38 dell-inspiron-7591-c26881 systemd-sleep[4285]: Successfully froze unit 'user.slice'.
Nov 21 09:41:38 dell-inspiron-7591-c26881 systemd-sleep[4285]: Performing sleep operation 'suspend'...
Nov 21 09:41:38 dell-inspiron-7591-c26881 kernel: PM: suspend entry (s2idle)
Nov 21 09:41:38 dell-inspiron-7591-c26881 systemd[1]: grub-initrd-fallback.service: Deactivated successfully.
Nov 21 09:41:38 dell-inspiron-7591-c26881 systemd[1]: Finished grub-initrd-fallback.service - GRUB failed boot detection.

[Reproduce steps]
1. Install ubuntu 25.10
2. Suspend the system

[Expected result]

The system should wake up by pressing the power button or by rtc
wakeup event.

[Actual result]

The system got stuck.

[Additional information]

Following are the DUT that is impacted.
https://certification.canonical.com/hardware/201903-26881/

ProblemType: Bug
DistroRelease: Ubuntu 25.10
Package: linux-image-6.17.0-5-generic 6.17.0-5.5
ProcVersionSignature: Ubuntu 6.17.0-5.5-generic 6.17.0-rc7
Uname: Linux 6.17.0-5-generic x86_64
ApportVersion: 2.33.1-0ubuntu3
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: ubuntu 2297 F.... pipewire
                      ubuntu 2363 F.... wireplumber
 /dev/snd/seq: ubuntu 2297 F.... pipewire
CasperMD5CheckResult: pass
CloudArchitecture: x86_64
CloudID: maas
CloudName: maas
CloudPlatform: maas
CloudSubPlatform: seed-dir (http://10.102.152.2:5248/MAAS/metadata/)
Date: Fri Nov 21 10:43:45 2025
InstallationDate: Installed on 2025-10-14 (38 days ago)
InstallationMedia: Ubuntu 25.10 "Questing Quokka" - Release amd64 (20251007)
IwDevWlp59s0Link: Not connected.
MachineType: Dell Inc. Inspiron 7590
ProcEnviron:
 LANG=en_US.UTF-8
 PATH=(custom, no user)
 SHELL=/bin/bash
 TERM=screen-256color
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.17.0-5-generic root=UUID=82bcd0fa-fe5b-4c91-9949-babf76b75987 ro quiet splash crashkernel=2G-4G:320M,4G-32G:512M,32G-64G:1024M,64G-128G:2048M,128G-:4096M vt.handoff=7
RelatedPackageVersions:
 firmware-sof N/A
 linux-firmware 20250901.git993ff19b-0ubuntu1
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 06/01/2023
dmi.bios.release: 1.20
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.20.0
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 10
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvr1.20.0:bd06/01/2023:br1.20:svnDellInc.:pnInspiron7590:pvr:rvnDellInc.:rn:rvr:cvnDellInc.:ct10:cvr:sku0922:
dmi.product.family: Inspiron
dmi.product.name: Inspiron 7590
dmi.product.sku: 0922
dmi.sys.vendor: Dell Inc.

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