[Bug 2105438] Re: Upgrade failed to install proper SDDM components and session drop down (x11 vs wayland) was empty

[Darin Miller]

This issue was caused by steam.deb from the Steam website causing
kubuntu-desktop to be removed during the upgrade process.  Thus, unsure
whether to blame Steam or the upgrade process not correctly disabling
the appropriate Steam conflicts.

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https://bugs.launchpad.net/bugs/2105438

Title:
  Upgrade failed to install proper SDDM components and session drop down
  (x11 vs wayland) was empty

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

Bug description:
  do-release-upgrade -d" completed successfully but resulted in a
  session with the "non-SDDM" login prompt and no available windows
  manager in the drop down. Ctrl-alt-f2 failed to produce a usable
  terminal... unsure how to fix without a terminal and thus recovered
  with a fresh install.

  ProblemType: Bug
  DistroRelease: Ubuntu 25.04
  Package: ubuntu-release-upgrader-core 1:25.04.11
  ProcVersionSignature: Ubuntu 6.14.0-11.11-generic 6.14.0-rc7
  Uname: Linux 6.14.0-11-generic x86_64
  ApportVersion: 2.32.0-0ubuntu3
  Architecture: amd64
  CasperMD5CheckResult: unknown
  CrashDB: ubuntu
  CrashReports: 640:1000:110:175125496:2025-03-29 12:39:16.258547358 -0600:2025-03-29 12:38:59.705217907 -0600:/var/crash/_usr_bin_plasmashell.1000.crash
  CurrentDesktop: KDE
  Date: Sun Mar 30 10:42:20 2025
  InstallationDate: Installed on 2025-03-29 (1 days ago)
  InstallationMedia: Kubuntu 25.04 "Plucky Puffin" - Beta amd64 (20250324.1)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  Symptom: release-upgrade
  UpgradeStatus: No upgrade log present (probably fresh install)

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