Public bug reported:
Hardware:
- ASUS VivoBook S X411UA
- Intel Core i7-8550U
- Intel UHD Graphics 620, PCI ID 8086:5917, i915
- BIOS X411UA.310
- Internal 1920×1080 display
Software:
- Ubuntu 26.04
- Kernel 7.0.0-27-generic
- GNOME/GDM using Wayland
Steps to reproduce:
1. Boot to the GDM login screen.
2. Leave the machine idle until the display blanks.
3. The machine subsequently becomes completely unresponsive and requires a
hard power-off.
Moving the cursor delays both display blanking and the freeze. The
issue reproduced repeatedly. The journal ends abruptly without a clean
shutdown, OOM, storage, or thermal error.
Before one freeze, the kernel repeatedly reported:
workqueue: output_poll_execute hogged CPU
workqueue: i915_hpd_poll_init_work [i915] hogged CPU
Testing:
- i915.enable_psr=0 alone did not fix the problem.
- i915.enable_psr=0 i915.enable_dc=0 has remained stable during stress
testing and display blanking so far.
Expected result:
The display blanks and wakes normally without affecting the system.
Actual result:
Display blanking leads to a complete system freeze.
ProblemType: Bug
DistroRelease: Ubuntu 26.04
Package: linux-image-7.0.0-27-generic 7.0.0-27.27
ProcVersionSignature: Ubuntu 7.0.0-27.27-generic 7.0.6
Uname: Linux 7.0.0-27-generic x86_64
ApportVersion: 2.34.0-0ubuntu2
Architecture: amd64
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path',
'/dev/snd/controlC0', '/dev/snd/hwC0D2', '/dev/snd/hwC0D0',
'/dev/snd/pcmC0D8p', '/dev/snd/pcmC0D7p', '/dev/snd/pcmC0D3p',
'/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/seq', '/dev/snd/timer']
failed with exit code 1:
CasperMD5CheckResult: unknown
Date: Tue Jul 7 16:16:10 2026
InstallationDate: Installed on 2026-07-07 (0 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 13d3:5a07 IMC Networks VGA UVC WebCam
Bus 001 Device 003: ID 8087:0a2b Intel Corp. Bluetooth wireless interface
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
MachineType: ASUSTeK COMPUTER INC. X411UA
ProcEnviron:
LANG=en_US.UTF-8
PATH=(custom, no username)
SHELL=/bin/bash
TERM=xterm-256color
XDG_RUNTIME_DIR=<set>
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-7.0.0-27-generic
root=UUID=be61cce7-c4dc-42f6-99ea-8d7847981abe ro i915.enable_psr=0
i915.enable_psr=0 i915.enable_dc=0 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: 04/16/2019
dmi.bios.release: 5.12
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: X411UA.310
dmi.board.asset.tag: ATN12345678901234567
dmi.board.name: X411UA
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.:bvrX411UA.310:bd04/16/2019:br5.12:svnASUSTeKCOMPUTERINC.:pnX411UA:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnX411UA:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:sku:pfaVivoBookS:
dmi.product.family: VivoBook S
dmi.product.name: X411UA
dmi.product.version: 1.0
dmi.sys.vendor: ASUSTeK COMPUTER INC.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug resolute
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https://bugs.launchpad.net/bugs/2159937
Title:
ASUS X411UA hard-freezes after GDM blanks display on i915
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