[Bug 1939244] [NEW] Switching users, then logging back in causes desktop to freeze

[Jonas Gamao]

Public bug reported:

After logging back in from switch user, the splash screen appears, but
freezes afterwards.

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: sddm 0.18.1-1ubuntu2
ProcVersionSignature: Ubuntu 5.4.0-80.90-generic 5.4.124
Uname: Linux 5.4.0-80-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.18
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: KDE
Date: Sun Aug  8 15:08:33 2021
InstallationDate: Installed on 2021-08-07 (1 days ago)
InstallationMedia: Kubuntu 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731)
SourcePackage: sddm
UpgradeStatus: No upgrade log present (probably fresh install)
--- 
ProblemType: Bug
ApportVersion: 2.20.11-0ubuntu27.18
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: KDE
DistroRelease: Ubuntu 20.04
InstallationDate: Installed on 2021-08-07 (1 days ago)
InstallationMedia: Kubuntu 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731)
Package: plasma-desktop 4:5.18.5-0ubuntu0.1
PackageArchitecture: amd64
ProcVersionSignature: Ubuntu 5.4.0-80.90-generic 5.4.124
Tags:  focal
Uname: Linux 5.4.0-80-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin lxd plugdev sambashare sudo
_MarkForUpload: True

** Affects: plasma-desktop (Ubuntu)
     Importance: Undecided
         Status: New

** Affects: sddm (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug apport-collected focal kubuntu plasma

** Also affects: plasma-desktop (Ubuntu)
   Importance: Undecided
       Status: New

** Tags added: apport-collected

** Description changed:

  After logging back in from switch user, the splash screen appears, but
  freezes afterwards.
  
  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: sddm 0.18.1-1ubuntu2
  ProcVersionSignature: Ubuntu 5.4.0-80.90-generic 5.4.124
  Uname: Linux 5.4.0-80-generic x86_64
  ApportVersion: 2.20.11-0ubuntu27.18
  Architecture: amd64
  CasperMD5CheckResult: skip
  CurrentDesktop: KDE
  Date: Sun Aug  8 15:08:33 2021
  InstallationDate: Installed on 2021-08-07 (1 days ago)
  InstallationMedia: Kubuntu 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731)
  SourcePackage: sddm
  UpgradeStatus: No upgrade log present (probably fresh install)
+ --- 
+ ProblemType: Bug
+ ApportVersion: 2.20.11-0ubuntu27.18
+ Architecture: amd64
+ CasperMD5CheckResult: skip
+ CurrentDesktop: KDE
+ DistroRelease: Ubuntu 20.04
+ InstallationDate: Installed on 2021-08-07 (1 days ago)
+ InstallationMedia: Kubuntu 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731)
+ Package: plasma-desktop 4:5.18.5-0ubuntu0.1
+ PackageArchitecture: amd64
+ ProcVersionSignature: Ubuntu 5.4.0-80.90-generic 5.4.124
+ Tags:  focal
+ Uname: Linux 5.4.0-80-generic x86_64
+ UpgradeStatus: No upgrade log present (probably fresh install)
+ UserGroups: adm cdrom dip lpadmin lxd plugdev sambashare sudo
+ _MarkForUpload: True

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https://bugs.launchpad.net/bugs/1939244

Title:
  Switching users, then logging back in causes desktop to freeze

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