Public bug reported:
## Summary
The system completely freezes immediately after resuming from suspend.
This has happened three times so far. In all observed cases, the machine
had been suspended automatically due to inactivity for a long period.
The machine resumed from suspend without user interaction. The lock
screen was displayed normally, but the entire system was completely
unresponsive.
## Expected behavior
The system should resume from suspend and remain fully operational.
## Actual behavior
Immediately after resume:
* the lock screen is displayed normally;
* mouse input does not work;
* the built-in keyboard does not respond;
* the graphical session does not respond;
* the entire machine appears frozen.
The only way to recover is a forced reboot using the physical power
button.
After rebooting, the system works normally again.
## Reproducibility
Observed 3 times.
Common pattern:
1. The machine remains inactive for a long period.
2. Ubuntu automatically enters suspend.
3. The machine remains suspended for more than about 30 minutes.
4. The machine resumes without user interaction.
5. Immediately after resume, the system is completely frozen.
The problem has only been observed after long suspend periods.
## Environment
* Ubuntu 26.04 LTS
* GNOME
* Wayland
* Dell G15 5530
* Hybrid/balanced graphics mode
* NVIDIA GPU
* External HDMI monitor connected
* External monitor configured as the primary display
* Extended desktop
* Laptop lid open
* Connected to AC power
* Bluetooth enabled
## Additional information
No graphical corruption or rendering artifacts are visible. The lock
screen looks normal despite the system being completely unresponsive.
No other suspend/resume problem has been observed.
Because the whole system freezes, it is not possible to collect
diagnostic information while the problem is occurring.
Diagnostic information from the boot affected by the freeze was
collected immediately after the forced reboot and submitted through
Apport.
ProblemType: Bug
DistroRelease: Ubuntu 26.04
Package: linux-image-7.0.0-30-generic 7.0.0-30.30
ProcVersionSignature: Ubuntu 7.0.0-30.30-generic 7.0.12
Uname: Linux 7.0.0-30-generic x86_64
ApportVersion: 2.34.1-0ubuntu0.1
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: diego 5360 F.... pipewire
diego 5368 F.... wireplumber
/dev/snd/controlC0: diego 5368 F.... wireplumber
/dev/snd/seq: diego 5360 F.... pipewire
CasperMD5CheckResult: unknown
CurrentDesktop: ubuntu:GNOME
Date: Thu Aug 20 07:34:33 2026
InstallationDate: Installed on 2026-08-02 (17 days ago)
InstallationMedia: Ubuntu 26.04 "Resolute Raccoon" - Release amd64 (20260423.1)
Lsusb:
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 0bda:5522 Realtek Semiconductor Corp.
Integrated_Webcam_HD
Bus 001 Device 003: ID 187c:0551 Alienware Corporation AW-ELC
Bus 001 Device 004: ID 8087:0026 Intel Corp. AX201 Bluetooth
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
MachineType: Dell Inc. Dell G15 5530
ProcEnviron:
LANG=pt_BR.UTF-8
PATH=(custom, user)
SHELL=/bin/bash
TERM=xterm-256color
XDG_RUNTIME_DIR=<set>
ProcFB:
0 i915drmfb
1 nvidia-drmdrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-7.0.0-30-generic
root=UUID=466e9a49-1cb8-4f82-9f43-588d2422dbe0 ro quiet splash
crashkernel=2G-4G:320M,4G-32G:512M,32G-64G:1024M,64G-128G:2048M,128G-:4096M
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 04/23/2026
dmi.bios.release: 1.33
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.33.0
dmi.board.name: 0KC8TC
dmi.board.vendor: Dell Inc.
dmi.board.version: A02
dmi.chassis.type: 10
dmi.chassis.vendor: Dell Inc.
dmi.ec.firmware.release: 1.22
dmi.modalias:
dmi:bvnDellInc.:bvr1.33.0:bd04/23/2026:br1.33:efr1.22:svnDellInc.:pnDellG155530:pvr:rvnDellInc.:rn0KC8TC:rvrA02:cvnDellInc.:ct10:cvr:sku0BF7:pfaGSeries:
dmi.product.family: GSeries
dmi.product.name: Dell G15 5530
dmi.product.sku: 0BF7
dmi.sys.vendor: Dell Inc.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug resolute wayland-session
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https://bugs.launchpad.net/bugs/2164635
Title:
System completely freezes immediately after automatic resume from
suspend
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