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[Ubuntu Foundations Team Bug Bot <2113479@xxxxxxxxxxxxxxxxxx>]

** Package changed: ubuntu => xorg (Ubuntu)

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https://bugs.launchpad.net/bugs/2113479

Title:
  Video playback in Firefox freezes Wayland & Xorg

Status in xorg package in Ubuntu:
  New

Bug description:
  Issue: Softlockup with udev-worker during video playback via Firefox
  browsers on wayland/Xorg with AMD GPU driver

  Expected: stable system, and smooth video playback

  What actually happens: system freezes requiring a sysreq sequence. CU
  soft lockup udev-worker message in logs. DrKonqi rate-limiting for
  crashes.

  Steps to reproduce: 
  1. Open a Firefox browser such as Zen, LibreWolf, Floorp, or Firefox itself.  
  2. Navigate to an online video playback service
  3. start playing videos
  4. Switch desktops or let system idle till screen lock
  5. system freezes, cannot interact

  Key observations
  * Happens with Snap Firefox and Flatpak Zen. but NOT with Chrome based browsers.  
  * Does not happen with youtube playback but with other codecs and or sources
  * occurs on both wayland and xorg
  "watchdog: BUG: soft lockup - CPU#0 stuck for 32s! [(udev-worker):574]" found in journalctl -b -1
  * "drkonqi-coredump-launcher: ... not starting since we tried this too often recently" also in logs
  * sometimes happens when moving desktops in plasma
  * sometimes happens after logging back in after timeout in plasma
  * has occurred across multiple Ubuntu versions
  * using open-source drivers

  
  hardware affected: AMD processor with integrated graphics on an HP 15 laptop
  Vendor ID: AuthenticAMD
  Model name: AMD E1-2100 APU with Radeon(TM) HD Graphics
  CPU family: 22

  
  Work arounds: 
  1. Disable both "use recommended performance settings" and "use acceleration when possible" selections in Firefox Preferences. 
  2. use Chrome based browsers with acceleration enabled

  ProblemType: Bug
  DistroRelease: Ubuntu 25.04
  Package: xorg 1:7.7+23ubuntu4
  ProcVersionSignature: Ubuntu 6.14.0-15.15-generic 6.14.0
  Uname: Linux 6.14.0-15-generic x86_64
  ApportVersion: 2.32.0-0ubuntu5.1
  Architecture: amd64
  CasperMD5CheckResult: pass
  CompositorRunning: None
  CurrentDesktop: Hyprland
  Date: Sat Jun  7 23:35:23 2025
  DistUpgraded: 2025-05-18 14:18:02,194 DEBUG Running PostInstallScript: '/usr/lib/ubuntu-advantage/upgrade_lts_contract.py'
  DistroCodename: plucky
  DistroVariant: ubuntu
  ExtraDebuggingInterest: Yes, if not too technical
  GpuHangFrequency: Several times a week
  GpuHangReproducibility: Yes, I can easily reproduce it
  GpuHangStarted: Since before I upgraded
  GraphicsCard:
   Advanced Micro Devices, Inc. [AMD/ATI] Kabini [Radeon HD 8210] [1002:9834] (prog-if 00 [VGA controller])
     Subsystem: Hewlett-Packard Company Device [103c:21f7]
  InstallationDate: Installed on 2024-02-08 (485 days ago)
  InstallationMedia: Ubuntu 22.04.3 LTS "Jammy Jellyfish" - Release amd64 (20230807.2)
  MachineType: Hewlett-Packard HP 15 Notebook PC
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.14.0-15-generic root=UUID=fd3c1a7c-072b-4ccf-a7fb-9b7c15923d16 ro quiet splash crashkernel=2G-4G:320M,4G-32G:512M,32G-64G:1024M,64G-128G:2048M,128G-:4096M vt.handoff=7
  SourcePackage: xorg
  Symptom: display
  Title: Xorg freeze
  UpgradeStatus: Upgraded to plucky on 2025-05-18 (20 days ago)
  dmi.bios.date: 08/06/2014
  dmi.bios.release: 15.34
  dmi.bios.vendor: Insyde
  dmi.bios.version: F.22
  dmi.board.asset.tag: Base Board Asset Tag
  dmi.board.name: 21F7
  dmi.board.vendor: Hewlett-Packard
  dmi.board.version: 52.2B
  dmi.chassis.asset.tag: Chassis Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: Hewlett-Packard
  dmi.chassis.version: Chassis Version
  dmi.ec.firmware.release: 52.43
  dmi.modalias: dmi:bvnInsyde:bvrF.22:bd08/06/2014:br15.34:efr52.43:svnHewlett-Packard:pnHP15NotebookPC:pvr0976100000405F00001610180:rvnHewlett-Packard:rn21F7:rvr52.2B:cvnHewlett-Packard:ct10:cvrChassisVersion:skuF4H14LA#AKH:
  dmi.product.family: 103C_5335KV G=N L=CON B=HP S=PAV
  dmi.product.name: HP 15 Notebook PC
  dmi.product.sku: F4H14LA#AKH
  dmi.product.version: 0976100000405F00001610180
  dmi.sys.vendor: Hewlett-Packard
  version.compiz: compiz N/A
  version.libdrm2: libdrm2 2.4.124-2
  version.libgl1-mesa-dri: libgl1-mesa-dri 25.0.3-1ubuntu2
  version.libgl1-mesa-glx: libgl1-mesa-glx N/A
  version.xserver-xorg-core: xserver-xorg-core 2:21.1.16-1ubuntu1
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:22.0.0-1build1
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20210115-1build1
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.18-1

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