Public bug reported: It took me quite a while until I found and could confirm an older existing bug in plasma-workframe induced by an non-existent printer.
# dmesg | tail -2 [ 336.325887] plasmashell[2335]: segfault at 0 ip 00007fa367822556 sp 00007ffd1c375180 error 4 in libkcupslib.so[7fa3677e6000+55000] [ 598.156727] Qt bearer threa[2298]: segfault at 30 ip 00007f524a434d71 sp 00007f522effc720 error 4 in libQt5Core.so.5.9.5[7f524a1ae000+53b000] ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: print-manager 4:17.12.3-0ubuntu1 ProcVersionSignature: Ubuntu 4.15.0-43.46-generic 4.15.18 Uname: Linux 4.15.0-43-generic x86_64 ApportVersion: 2.20.9-0ubuntu7.5 Architecture: amd64 CurrentDesktop: KDE Date: Wed Jan 2 00:08:43 2019 InstallationDate: Installed on 2018-07-05 (180 days ago) InstallationMedia: Kubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426) SourcePackage: print-manager UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: print-manager (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug bionic -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1810220 Title: plasmashell segaults in libkcupslib.so during login To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/print-manager/+bug/1810220/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs