*** This bug is a duplicate of bug 1715365 ***
    https://bugs.launchpad.net/bugs/1715365

Thanks.

It appears you are hitting a common crash in gnome-session-check-accelerated 
that is tracking in:
https://errors.ubuntu.com/problem/32ef08d11dc442f40fddf95eb9a987d2dd02425a

** Also affects: gnome-session (Ubuntu)
   Importance: Undecided
       Status: New

** Description changed:

+ https://errors.ubuntu.com/problem/32ef08d11dc442f40fddf95eb9a987d2dd02425a
+ 
+ ---
+ 
  While trying to change to another user account without boot display
  manager freeze. ctr-alt-F2 return back to previous user. While trying to
  log in to another user account after log out from another result to same
  immediate freeze. ctr-alt-del boots and after this login works.
  
  I am using ubuntu 18.04 fresh install with final release. I have checked
  yes to the the bionic-proposed as similar kind of bug was reported to
  have a fix available.
  
  gdm3:
-   Asennettu: 3.28.0-0ubuntu1.1
-   Ehdokas:   3.28.0-0ubuntu1.1
-   Versiotaulukko:
-  *** 3.28.0-0ubuntu1.1 500
-         500 http://fi.archive.ubuntu.com/ubuntu bionic-proposed/main amd64 
Packages
-         100 /var/lib/dpkg/status
-      3.28.0-0ubuntu1 500
-         500 http://fi.archive.ubuntu.com/ubuntu bionic/main amd64 Packages
+   Asennettu: 3.28.0-0ubuntu1.1
+   Ehdokas:   3.28.0-0ubuntu1.1
+   Versiotaulukko:
+  *** 3.28.0-0ubuntu1.1 500
+         500 http://fi.archive.ubuntu.com/ubuntu bionic-proposed/main amd64 
Packages
+         100 /var/lib/dpkg/status
+      3.28.0-0ubuntu1 500
+         500 http://fi.archive.ubuntu.com/ubuntu bionic/main amd64 Packages
  
  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: gdm3 3.28.0-0ubuntu1.1
  ProcVersionSignature: Ubuntu 4.15.0-21.22-generic 4.15.17
  Uname: Linux 4.15.0-21-generic x86_64
  ApportVersion: 2.20.9-0ubuntu7
  Architecture: amd64
  Date: Sun May 20 17:55:27 2018
  InstallationDate: Installed on 2018-04-27 (22 days ago)
  InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
  ProcEnviron:
-  TERM=xterm-256color
-  PATH=(custom, no user)
-  LANG=fi_FI.UTF-8
-  SHELL=/bin/bash
+  TERM=xterm-256color
+  PATH=(custom, no user)
+  LANG=fi_FI.UTF-8
+  SHELL=/bin/bash
  SourcePackage: gdm3
  UpgradeStatus: No upgrade log present (probably fresh install)
  modified.conffile..etc.gdm3.custom.conf: [deleted]

** Summary changed:

- User change login freeze 
+ User change login freeze. gnome-session-check-accelerated crashed with SIGSEGV

** Changed in: gnome-session (Ubuntu)
       Status: New => Confirmed

** No longer affects: gdm3 (Ubuntu)

-- 
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to gdm3 in Ubuntu.
https://bugs.launchpad.net/bugs/1772268

Title:
  User change login freeze. gnome-session-check-accelerated crashed with
  SIGSEGV

Status in gnome-session package in Ubuntu:
  Confirmed

Bug description:
  https://errors.ubuntu.com/problem/32ef08d11dc442f40fddf95eb9a987d2dd02425a

  ---

  While trying to change to another user account without boot display
  manager freeze. ctr-alt-F2 return back to previous user. While trying
  to log in to another user account after log out from another result to
  same immediate freeze. ctr-alt-del boots and after this login works.

  I am using ubuntu 18.04 fresh install with final release. I have
  checked yes to the the bionic-proposed as similar kind of bug was
  reported to have a fix available.

  gdm3:
    Asennettu: 3.28.0-0ubuntu1.1
    Ehdokas:   3.28.0-0ubuntu1.1
    Versiotaulukko:
   *** 3.28.0-0ubuntu1.1 500
          500 http://fi.archive.ubuntu.com/ubuntu bionic-proposed/main amd64 
Packages
          100 /var/lib/dpkg/status
       3.28.0-0ubuntu1 500
          500 http://fi.archive.ubuntu.com/ubuntu bionic/main amd64 Packages

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: gdm3 3.28.0-0ubuntu1.1
  ProcVersionSignature: Ubuntu 4.15.0-21.22-generic 4.15.17
  Uname: Linux 4.15.0-21-generic x86_64
  ApportVersion: 2.20.9-0ubuntu7
  Architecture: amd64
  Date: Sun May 20 17:55:27 2018
  InstallationDate: Installed on 2018-04-27 (22 days ago)
  InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   LANG=fi_FI.UTF-8
   SHELL=/bin/bash
  SourcePackage: gdm3
  UpgradeStatus: No upgrade log present (probably fresh install)
  modified.conffile..etc.gdm3.custom.conf: [deleted]

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