Public bug reported:
Teams turns on the camera. The AMD camera driver (amd_isp_capture) gets
0xDEADDEAD from the camera hardware 201 times in about 2 seconds. That
means the camera block wasn't responding.
amd-pmf: SMU response timed out. The SMU is the power-management chip
that the camera, display, video decoder and graphics all depend on, and
it stopped responding.
Everything that needs the SMU starts failing in turn: display (DMCUB
error, flip_done timed out), power gating for the video decoder, Failed
to disable gfxoff, and ACPI/PMF calls (AE_AML_LOOP_TIMEOUT).
The video-decode engine times out on a Firefox video-decode job (RDD
Process, which is Teams' incoming video).
The graphics engine times out on Firefox. Resetting just that engine
fails, so the driver starts a full GPU reset.
ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: linux-image-6.17.0-1032-oem 6.17.0-1032.32
ProcVersionSignature: Ubuntu 6.17.0-1032.32-oem 6.17.13
Uname: Linux 6.17.0-1032-oem x86_64
ApportVersion: 2.28.3-0ubuntu0.1
Architecture: amd64
CRDA: N/A
CasperMD5CheckResult: pass
CurrentDesktop: sway
Date: Fri Sep 25 11:33:52 2026
HibernationDevice: RESUME=UUID=b59432de-99a0-47b1-b0f8-7533082ab1c8
InstallationDate: Installed on 2026-09-14 (11 days ago)
InstallationMedia: Ubuntu 24.04 LTS "Noble Numbat" - Release amd64 (20240424)
MachineType: HP HP ZBook Ultra G1a 14 inch Mobile Workstation PC
ProcEnviron:
LANG=en_US.UTF-8
PATH=(custom, no user)
SHELL=/bin/bash
TERM=foot
XDG_RUNTIME_DIR=<set>
ProcFB: 0 amdgpudrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-6.17.0-1032-oem
root=/dev/mapper/ubuntu--vg-ubuntu--lv ro quiet splash
resume=UUID=b59432de-99a0-47b1-b0f8-7533082ab1c8 resume_offset=460204032
vt.handoff=7
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No
PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions:
linux-restricted-modules-6.17.0-1032-oem N/A
linux-backports-modules-6.17.0-1032-oem N/A
linux-firmware 20240318.git3b128b60.0ubuntu3.1
SourcePackage: linux-oem-6.17
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 04/10/2026
dmi.bios.release: 5.5
dmi.bios.vendor: HP
dmi.bios.version: X89 Ver. 01.05.05
dmi.board.name: 8D01
dmi.board.vendor: HP
dmi.board.version: KBC Version 35.34.00
dmi.chassis.type: 10
dmi.chassis.vendor: HP
dmi.ec.firmware.release: 53.52
dmi.modalias:
dmi:bvnHP:bvrX89Ver.01.05.05:bd04/10/2026:br5.5:efr53.52:svnHP:pnHPZBookUltraG1a14inchMobileWorkstationPC:pvrSBKPFV3:rvnHP:rn8D01:rvrKBCVersion35.34.00:cvnHP:ct10:cvr:skuA3ZJ4ET#UUW:
dmi.product.family: 103C_5336AN HP ZBook
dmi.product.name: HP ZBook Ultra G1a 14 inch Mobile Workstation PC
dmi.product.sku: A3ZJ4ET#UUW
dmi.product.version: SBKPFV3
dmi.sys.vendor: HP
** Affects: linux-oem-6.17 (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug noble wayland-session
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https://bugs.launchpad.net/bugs/2168517
Title:
camera driver causes gpu to hang
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