[Bug 2111658] [NEW] Upgrade ends in a black screen and hangs after ~3 hrs

[MasterCATZ]

Public bug reported:

Upgrade ends in a black screen and hangs after ~3 hrs 256 CPU cores 512gb RAM  ,
keyboard light / caplock etc does not respond 
sometimes I can still ping pc 
ssh drops off completely 
SysRq still works for reboot RSUIB


this has happened multiple times I have rolled back with btrfs 24.10 snapshot's and rinse repeated
I have tried multiple times removing drivers before upgrades etc

anything I can run to get full logs ? should I strace ?

another issue is for some reason all video players end up with this when ever I did end  up on 25.04
symbol lookup error: /lib/x86_64-linux-gnu/libavutil.so.59: undefined symbol: vaMapBuffer2
no matter how many times I force reinstalling ffmpeg / libavutil

however when I do a fresh 24.04 to 24.10 to 25.04 it does not happen
only on my main OS that has been upgraded since possibly the 12's

Description:	Ubuntu 24.10
Release:	24.10

another issue when I was on 25.04 every thing lagged , ie) typing sudo
would take 1 min for password to pop up

doing file browsing could take 1 minute for each folder to show contents
etc

dmesg would not show anything what could I do for find the cause ?

ProblemType: Bug
DistroRelease: Ubuntu 24.10
Package: ubuntu-release-upgrader-core 1:24.10.14
Uname: Linux 6.14.8-061408-generic x86_64
NonfreeKernelModules: zfs spl
ApportVersion: 2.30.0-0ubuntu4.2
Architecture: amd64
CasperMD5CheckResult: pass
CloudArchitecture: x86_64
CloudID: none
CloudName: none
CloudPlatform: none
CloudSubPlatform: config
CrashDB: ubuntu
CrashReports:
 640:1000:117:1784911697:2025-05-19 18:29:43.742258476 +1000:2025-05-19 18:29:13.238472238 +1000:/var/crash/_opt_chromium.org_thorium_thorium.1000.crash
 644:1000:117:0:2025-05-19 18:29:43.743258468 +1000:2025-05-19 18:29:43.743258468 +1000:/var/crash/_opt_chromium.org_thorium_thorium.1000.upload
 640:1000:117:2363100:2025-05-25 22:05:57.116536946 +1000:2025-05-25 22:05:54.705559124 +1000:/var/crash/_usr_bin_thunar.1000.crash
CurrentDesktop: Unity:Unity7:ubuntu
Date: Sun May 25 22:06:30 2025
InstallationDate: Installed on 2021-12-14 (1259 days ago)
InstallationMedia: Ubuntu-Server 20.04.3 LTS "Focal Fossa" - Release amd64 (20210824)
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
Symptom: dist-upgrade
UpgradeStatus: Upgraded to oracular on 2025-05-25 (0 days ago)

** Affects: ubuntu-release-upgrader (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug dist-upgrade oracular

** Attachment added: "dist-upgrade logs"
   https://bugs.launchpad.net/bugs/2111658/+attachment/5880181/+files/dist-upgrade.tar

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https://bugs.launchpad.net/bugs/2111658

Title:
  Upgrade ends in a black screen and hangs after ~3 hrs

Status in ubuntu-release-upgrader package in Ubuntu:
  New

Bug description:
  Upgrade ends in a black screen and hangs after ~3 hrs 256 CPU cores 512gb RAM  ,
  keyboard light / caplock etc does not respond 
  sometimes I can still ping pc 
  ssh drops off completely 
  SysRq still works for reboot RSUIB

  
  this has happened multiple times I have rolled back with btrfs 24.10 snapshot's and rinse repeated
  I have tried multiple times removing drivers before upgrades etc

  anything I can run to get full logs ? should I strace ?

  another issue is for some reason all video players end up with this when ever I did end  up on 25.04
  symbol lookup error: /lib/x86_64-linux-gnu/libavutil.so.59: undefined symbol: vaMapBuffer2
  no matter how many times I force reinstalling ffmpeg / libavutil

  however when I do a fresh 24.04 to 24.10 to 25.04 it does not happen
  only on my main OS that has been upgraded since possibly the 12's

  Description:	Ubuntu 24.10
  Release:	24.10

  another issue when I was on 25.04 every thing lagged , ie) typing sudo
  would take 1 min for password to pop up

  doing file browsing could take 1 minute for each folder to show
  contents etc

  dmesg would not show anything what could I do for find the cause ?

  ProblemType: Bug
  DistroRelease: Ubuntu 24.10
  Package: ubuntu-release-upgrader-core 1:24.10.14
  Uname: Linux 6.14.8-061408-generic x86_64
  NonfreeKernelModules: zfs spl
  ApportVersion: 2.30.0-0ubuntu4.2
  Architecture: amd64
  CasperMD5CheckResult: pass
  CloudArchitecture: x86_64
  CloudID: none
  CloudName: none
  CloudPlatform: none
  CloudSubPlatform: config
  CrashDB: ubuntu
  CrashReports:
   640:1000:117:1784911697:2025-05-19 18:29:43.742258476 +1000:2025-05-19 18:29:13.238472238 +1000:/var/crash/_opt_chromium.org_thorium_thorium.1000.crash
   644:1000:117:0:2025-05-19 18:29:43.743258468 +1000:2025-05-19 18:29:43.743258468 +1000:/var/crash/_opt_chromium.org_thorium_thorium.1000.upload
   640:1000:117:2363100:2025-05-25 22:05:57.116536946 +1000:2025-05-25 22:05:54.705559124 +1000:/var/crash/_usr_bin_thunar.1000.crash
  CurrentDesktop: Unity:Unity7:ubuntu
  Date: Sun May 25 22:06:30 2025
  InstallationDate: Installed on 2021-12-14 (1259 days ago)
  InstallationMedia: Ubuntu-Server 20.04.3 LTS "Focal Fossa" - Release amd64 (20210824)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  Symptom: dist-upgrade
  UpgradeStatus: Upgraded to oracular on 2025-05-25 (0 days ago)

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