Public bug reported:
After upgrading from Ubuntu kernel 7.0.0-29 to 7.0.0-30, the integrated
Chicony webcam 04f2:b681 freezes every few seconds during Zoom video.
Toggling video temporarily restores it. Setting
/sys/module/usbcore/parameters/autosuspend to -1 prevents the freezing.
The issue was not present before the kernel update.
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
CasperMD5CheckResult: pass
CurrentDesktop: XFCE
Date: Fri Aug 21 19:39:26 2026
InstallationDate: Installed on 2026-05-10 (103 days ago)
InstallationMedia: Ubuntu 26.04 "Resolute Raccoon" - Release amd64 (20260423.1)
MachineType: LENOVO 20SC0008US
ProcEnviron:
LANG=C.UTF-8
PATH=(custom, no user)
SHELL=/bin/bash
TERM=xterm-256color
XDG_RUNTIME_DIR=<set>
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-7.0.0-30-generic
root=UUID=6809a812-05bb-4d49-ae3e-0daf06bbd7c3 ro quiet splash
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: No upgrade log present (probably fresh install)
dmi.bios.date: 10/17/2025
dmi.bios.release: 1.32
dmi.bios.vendor: LENOVO
dmi.bios.version: N2SET38W (1.32 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20SC0008US
dmi.board.vendor: LENOVO
dmi.board.version: SDK0J40697 WIN
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: None
dmi.ec.firmware.release: 1.6
dmi.modalias:
dmi:bvnLENOVO:bvrN2SET38W(1.32):bd10/17/2025:br1.32:efr1.6:svnLENOVO:pn20SC0008US:pvrThinkPadX390:rvnLENOVO:rn20SC0008US:rvrSDK0J40697WIN:cvnLENOVO:ct10:cvrNone:skuLENOVO_MT_20SC_BU_Think_FM_ThinkPadX390:pfaThinkPadX390:
dmi.product.family: ThinkPad X390
dmi.product.name: 20SC0008US
dmi.product.sku: LENOVO_MT_20SC_BU_Think_FM_ThinkPad X390
dmi.product.version: ThinkPad X390
dmi.sys.vendor: LENOVO
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug resolute
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https://bugs.launchpad.net/bugs/2164743
Title:
freezing video due to autosuspend
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