Public bug reported: I am reporting a suspend failure on Ubuntu with kernel 7.0.0-15-generic.
The laptop freezes during suspend entry and requires a hard power-off using the power button. This appears to be a suspend-entry failure rather than a normal resume failure, because the system does not cleanly return and no normal suspend/resume completion is recorded. The suspend failure happens in all of these cases: - Suspend from the power menu - Suspend from terminal using systemctl suspend - Suspend by closing the laptop lid Kernel: Linux jamshaid-laptop 7.0.0-15-generic #15-Ubuntu SMP PREEMPT_DYNAMIC Wed Apr 22 16:06:43 UTC 2026 x86_64 GNU/Linux Kernel command line includes: mem_sleep_default=s2idle Sleep mode: cat /sys/power/mem_sleep Output: [s2idle] deep I followed Ubuntu DebuggingKernelSuspend: https://wiki.ubuntu.com/DebuggingKernelSuspend I tested pm_test=freezer. Commands used: sudo sh -c 'echo freezer > /sys/power/pm_test' cat /sys/power/pm_test sudo systemctl suspend Result: The system froze during pm_test=freezer and did not return automatically. I had to hard power off using the power button. After reboot, I restored pm_test: sudo sh -c 'echo none > /sys/power/pm_test' cat /sys/power/pm_test Output: [none] core processors platform devices freezer I did not continue with devices/platform/processors/core because freezer is already the first failing pm_test stage. suspend_stats after reboot: success: 0 fail: 0 failed_freeze: 0 failed_prepare: 0 failed_suspend: 0 failed_suspend_late: 0 failed_suspend_noirq: 0 failed_resume_noirq: 0 failed_resume_early: 0 failed_resume: 0 failures: last_failed_dev: last_failed_errno: 0 last_failed_step: Important log lines around the freezer test: May 23 08:36:32 jamshaid-laptop sudo[9734]: jamshaid : TTY=/dev/pts/0 ; PWD=/home/jamshaid/suspend-debug ; USER=root ; COMMAND=/usr/bin/sh -c echo freezer > /sys/power/pm_test May 23 08:36:32 jamshaid-laptop sudo[9745]: jamshaid : TTY=/dev/pts/0 ; PWD=/home/jamshaid/suspend-debug ; USER=root ; COMMAND=/usr/bin/systemctl suspend May 23 08:36:32 jamshaid-laptop systemd-logind[2163]: The system will suspend now! May 23 08:36:32 jamshaid-laptop ModemManager[1992]: [sleep-monitor-systemd] system is about to suspend May 23 08:36:32 jamshaid-laptop NetworkManager[1919]: manager: sleep: sleep requested May 23 08:36:33 jamshaid-laptop kernel: r8169 0000:02:00.0 eno1: Link is Down May 23 08:36:33 jamshaid-laptop kernel: wlo1: deauthenticating from <AP> by local choice (Reason: 3=DEAUTH_LEAVING) There is no clean return/resume recorded. The system required hard power-off. Relevant hardware/drivers observed in logs: - HP laptop, ACPI DSDT model 88DD - AMD Renoir integrated GPU using amdgpu - NVIDIA proprietary driver 580.142 loaded - Realtek RTL8852AE Wi-Fi using rtw89_8852ae - Realtek Bluetooth firmware rtl8852au - r8169 Ethernet - s2idle is selected Other notable log messages: - ACPI BIOS Error (bug): AE_AML_BUFFER_LIMIT in \_SB.WMID.WQBZ / \_SB.WMID.WQBE - ACPI video duplicate device warning - NVIDIA proprietary module taints kernel - rtw89_8852ae firmware loads successfully before the test The bug was filed using: ubuntu-bug linux so apport system information should already be attached automatically. I am attaching the collected suspend-debug archive with: - previous boot full journal - previous boot kernel journal - grep of suspend/freezer/PM/systemd-suspend/logind/error lines - suspend_stats - mem_sleep - pm_test result Summary: - Suspend fails from power menu, terminal, and lid close. - Kernel: 7.0.0-15-generic - Sleep mode: [s2idle] deep - pm_test=freezer fails. - The laptop freezes and requires hard power-off. - The first failing pm_test stage is freezer, so I stopped there. ProblemType: Bug DistroRelease: Ubuntu 26.04 Package: linux-image-7.0.0-15-generic 7.0.0-15.15 ProcVersionSignature: Ubuntu 7.0.0-15.15-generic 7.0.0 Uname: Linux 7.0.0-15-generic x86_64 NonfreeKernelModules: nvidia_modeset nvidia ApportVersion: 2.34.0-0ubuntu2 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: jamshaid 5291 F.... wireplumber /dev/snd/controlC0: jamshaid 5291 F.... wireplumber /dev/snd/seq: jamshaid 5268 F.... pipewire CRDA: global country PK: DFS-UNSET (2400 - 2500 @ 40), (N/A, 30), (N/A) (5725 - 5875 @ 80), (N/A, 30), (N/A) (5945 - 6425 @ 320), (N/A, 23), (N/A), NO-OUTDOOR CasperMD5CheckResult: unknown CurrentDesktop: ubuntu:GNOME Date: Sat May 23 08:46:20 2026 InstallationDate: Installed on 2024-05-17 (735 days ago) InstallationMedia: Ubuntu 23.10.1 "Mantic Minotaur" - Release amd64 (20231016.1) MachineType: HP HP Pavilion Gaming Laptop 15-ec2xxx ProcFB: 0 amdgpudrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-7.0.0-15-generic root=UUID=bce83742-7090-4ac2-ab36-67b0bfb3a0e9 ro quiet splash mem_sleep_default=s2idle crashkernel=2G-4G:320M,4G-32G:512M,32G-64G:1024M,64G-128G:2048M,128G-:4096M PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon. SourcePackage: linux UpgradeStatus: Upgraded to resolute on 2026-05-16 (6 days ago) dmi.bios.date: 12/10/2025 dmi.bios.release: 15.31 dmi.bios.vendor: AMI dmi.bios.version: F.31 dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: 88DD dmi.board.vendor: HP dmi.board.version: 96.34 dmi.chassis.type: 10 dmi.chassis.vendor: HP dmi.chassis.version: Chassis Version dmi.ec.firmware.release: 96.34 dmi.modalias: dmi:bvnAMI:bvrF.31:bd12/10/2025:br15.31:efr96.34:svnHP:pnHPPavilionGamingLaptop15-ec2xxx:pvr:rvnHP:rn88DD:rvr96.34:cvnHP:ct10:cvrChassisVersion:sku450D8PA#UUF:pfa103C_5335KVHPPavilion: dmi.product.family: 103C_5335KV HP Pavilion dmi.product.name: HP Pavilion Gaming Laptop 15-ec2xxx dmi.product.sku: 450D8PA#UUF dmi.sys.vendor: HP ** Affects: linux (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug resolute wayland-session ** Attachment added: "suspend-debug-freezer-fail.tar.gz" https://bugs.launchpad.net/bugs/2154059/+attachment/5972742/+files/suspend-debug-freezer-fail.tar.gz -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2154059 Title: Kernel 7.0.0-15 freezes during suspend entry; pm_test=freezer hangs and requires hard power-off To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2154059/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
