Public bug reported:
Steps to reproduce:
Have an incoming Slack call
Plug in wired headphones while Slack is initializing audio
System freezes completely, requires hard reboot
Kernel messages at time of freeze:
May 27 11:19:35 kernel: nvidia 0000:01:00.0: Enabling HDA controller
May 27 11:19:35 kernel: NVRM: GPU0 _kgspProcessRpcEvent: Attempted to process
RPC event from GPU0: 0x101a (PFM_REQ_HNDLR_STATE_SYNC_CALLBACK) during bootup
without API lock
May 27 11:19:35 kernel: NVRM: GPU0 nvAssertFailedNoLog: Assertion failed: 0 @
kernel_gsp.c:1447
May 27 11:19:35 kernel: NVRM: GPU0 _kgspProcessRpcEvent: Attempted to process
RPC event from GPU0: 0x101a (PFM_REQ_HNDLR_STATE_SYNC_CALLBACK) during bootup
without API lock
May 27 11:19:35 kernel: NVRM: GPU0 nvAssertFailedNoLog: Assertion failed: 0 @
kernel_gsp.c:1447
Environment:
Kernel: 7.0.0-15-generic
NVIDIA driver: 595.71.05 (Open Kernel Module)
Machine: Lenovo (Intel Arrow Lake + NVIDIA dGPU)
Ubuntu 26.04
Note: The same assertion appeared 6+ times in the session before the fatal
freeze. Setting NVreg_EnableGpuFirmware=0 is a known workaround.
ProblemType: Bug
DistroRelease: Ubuntu 26.04
Package: linux-modules-nvidia-595-7.0.0-15-generic 7.0.0-15.15+2
ProcVersionSignature: Ubuntu 7.0.0-15.15-generic 7.0.0
Uname: Linux 7.0.0-15-generic x86_64
ApportVersion: 2.34.0-0ubuntu2
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: sparolin 4498 F.... pipewire
sparolin 4504 F.... wireplumber
/dev/snd/controlC0: sparolin 4504 F.... wireplumber
/dev/snd/seq: sparolin 4498 F.... pipewire
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Wed May 27 12:09:30 2026
InstallationDate: Installed on 2026-05-05 (22 days ago)
InstallationMedia: Ubuntu 26.04 "Resolute Raccoon" - Release amd64 (20260423.1)
MachineType: LENOVO 83JM
ProcEnviron:
LANG=en_US.UTF-8
PATH=(custom, no user)
SHELL=/bin/bash
TERM=xterm-256color
XDG_RUNTIME_DIR=<set>
ProcFB:
0 nvidia-drmdrmfb
1 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-7.0.0-15-generic
root=UUID=98a2dbae-0029-4273-9fb1-3bc63990f5ef ro quiet splash
crashkernel=2G-4G:320M,4G-32G:512M,32G-64G:1024M,64G-128G:2048M,128G-:4096M
SourcePackage: linux-restricted-modules
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 06/06/2025
dmi.bios.release: 1.49
dmi.bios.vendor: LENOVO
dmi.bios.version: PZCN49WW
dmi.board.asset.tag: NO Asset Tag
dmi.board.name: LNVNB161216
dmi.board.vendor: LENOVO
dmi.board.version: SDK0T76461 WIN
dmi.chassis.asset.tag: NO Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: IdeaPad Pro 5 16IAH10
dmi.ec.firmware.release: 1.49
dmi.modalias:
dmi:bvnLENOVO:bvrPZCN49WW:bd06/06/2025:br1.49:efr1.49:svnLENOVO:pn83JM:pvrIdeaPadPro516IAH10:rvnLENOVO:rnLNVNB161216:rvrSDK0T76461WIN:cvnLENOVO:ct10:cvrIdeaPadPro516IAH10:skuLENOVO_MT_83JM_BU_idea_FM_IdeaPadPro516IAH10:pfaIdeaPadPro516IAH10:
dmi.product.family: IdeaPad Pro 5 16IAH10
dmi.product.name: 83JM
dmi.product.sku: LENOVO_MT_83JM_BU_idea_FM_IdeaPad Pro 5 16IAH10
dmi.product.version: IdeaPad Pro 5 16IAH10
dmi.sys.vendor: LENOVO
** Affects: linux-restricted-modules (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug resolute wayland-session
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https://bugs.launchpad.net/bugs/2154374
Title:
System hard freeze when hot-plugging headphones during Slack audio
initialization
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