Session lock invoked manually (~11:00:00), lock screen displays, click mouse to get unlock.
Screen freezes for ~10 seconds, then blanks briefly and shows login screen. Looks like gnome-shell crashing at about 11:00:26 - interesting lines: Apr 08 11:00:26 kallisti gnome-shell[23758]: clutter_actor_insert_child_at_index: assertion 'child->priv->parent == NULL' failed Apr 08 11:00:28 kallisti kernel: gnome-shell[23758]: segfault at 0 ip 00007fce7c55445a sp 00007fffada2b230 error 4 in libst-1.0.so[7fce7c532000+4b000] Apr 08 11:00:28 kallisti kernel: Code: 4d 8b 8c 24 28 01 00 00 48 98 eb 0c 0f 1f 40 00 48 83 e8 01 85 c0 78 52 4d 8b 04 c1 b9 16 00 00 00 48 89 ef 49 8b 10 48 8b 12 <48> 8b 32 f3 a6 0f 97 c2 80 da 00 84 d2 75 d7 4d 8b 40 08 49 83 78 ** Attachment added: "journal during session lock" https://bugs.launchpad.net/ubuntu/+source/gnome-session/+bug/1871580/+attachment/5349407/+files/journal-gnome-crash -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-session in Ubuntu. https://bugs.launchpad.net/bugs/1871580 Title: Session killed instead of suspended on screen lock Status in gnome-session package in Ubuntu: Incomplete Bug description: Running focal (updated to 2020-04-08), ubuntu-on-wayland session. Trigger: either lock the screen manually (top-right-corner menu -> Lock) or wait for the auto-lock timer (Settings -> Privacy -> Screen Lock). Expected result: after unlock, previous session resumes. Observed: see login dialog instead of unlock dialog, previous session and all processes appear to have been killed. This is a fairly serious usability regression. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: ubuntu-session 3.36.0-2ubuntu1 ProcVersionSignature: Ubuntu 5.4.0-21.25-generic 5.4.27 Uname: Linux 5.4.0-21-generic x86_64 ApportVersion: 2.20.11-0ubuntu24 Architecture: amd64 CurrentDesktop: ubuntu:GNOME Date: Wed Apr 8 10:35:16 2020 InstallationDate: Installed on 2019-05-27 (316 days ago) InstallationMedia: Ubuntu 19.04 "Disco Dingo" - Release amd64 (20190416) PackageArchitecture: all SourcePackage: gnome-session UpgradeStatus: Upgraded to focal on 2020-04-06 (2 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-session/+bug/1871580/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp