Hi again, I have to add now that it only worked once. The second time I manually triggered the lock screen the same behavior went back. I also deactivated the Workspace-Matrix extension and it did not help.
So there is more happening under the hood. Sorry for the confusion. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-shell in Ubuntu. https://bugs.launchpad.net/bugs/1881060 Title: Screen lock tiggers segfault Status in gnome-shell package in Ubuntu: Incomplete Bug description: When I try to lock my screen (via termial/shortcut/menu icon) it the screen flashes and screen lock fails to occur. Error is: [ 1174.050313] traps: gnome-shell[10135] general protection fault ip:7f2facd9429a sp:7fff2117e168 error:0 in libc-2.31.so[7f2facc32000+178000] [ 1196.611454] audit: type=1400 audit(1590639386.013:66): apparmor="STATUS" operation="profile_replace" info="same as current profile, skipping" profile="unconfined" name="ippusbxd" pid=10567 comm="apparmor_parser" [ 1196.611941] audit: type=1400 audit(1590639386.013:67): apparmor="STATUS" operation="profile_replace" info="same as current profile, skipping" profile="unconfined" name="libreoffice-oopslash" pid=10570 comm="apparmor_parser" [ 1196.612169] audit: type=1400 audit(1590639386.013:68): apparmor="STATUS" operation="profile_replace" info="same as current profile, skipping" profile="unconfined" name="libreoffice-senddoc" pid=10578 comm="apparmor_parser" [ 1196.612858] audit: type=1400 audit(1590639386.013:69): apparmor="STATUS" operation="profile_replace" info="same as current profile, skipping" profile="unconfined" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=10568 comm="apparmor_parser" [ 1196.612860] audit: type=1400 audit(1590639386.013:70): apparmor="STATUS" operation="profile_replace" info="same as current profile, skipping" profile="unconfined" name="/usr/lib/NetworkManager/nm-dhcp-helper" pid=10568 comm="apparmor_parser" [ 1196.612862] audit: type=1400 audit(1590639386.013:71): apparmor="STATUS" operation="profile_replace" info="same as current profile, skipping" profile="unconfined" name="/usr/lib/connman/scripts/dhclient-script" pid=10568 comm="apparmor_parser" [ 1196.612864] audit: type=1400 audit(1590639386.013:72): apparmor="STATUS" operation="profile_replace" info="same as current profile, skipping" profile="unconfined" name="/{,usr/}sbin/dhclient" pid=10568 comm="apparmor_parser" [ 1196.612889] audit: type=1400 audit(1590639386.013:73): apparmor="STATUS" operation="profile_replace" info="same as current profile, skipping" profile="unconfined" name="/usr/sbin/cups-browsed" pid=10580 comm="apparmor_parser" [ 1196.612924] audit: type=1400 audit(1590639386.013:74): apparmor="STATUS" operation="profile_replace" info="same as current profile, skipping" profile="unconfined" name="/usr/lib/ibus/ibus-engine-hangul" pid=10573 comm="apparmor_parser" [ 1196.612967] audit: type=1400 audit(1590639386.013:75): apparmor="STATUS" operation="profile_replace" info="same as current profile, skipping" profile="unconfined" name="/usr/bin/man" pid=10575 comm="apparmor_parser" [ 1204.310516] show_signal: 54 callbacks suppressed [ 1204.310517] traps: gnome-shell[10411] general protection fault ip:7f6abd8f5252 sp:7ffd36f07f50 error:0 in libst-1.0.so[7f6abd8d5000+4c000] [ 1430.333121] gnome-shell[10731]: segfault at 0 ip 00007fcaa88bf252 sp 00007ffe59aa07a0 error 4 in libst-1.0.so[7fcaa889f000+4c000] [ 1430.333132] Code: 48 83 c3 01 41 39 9f 30 01 00 00 0f 8e 27 01 00 00 49 8b 87 28 01 00 00 48 8d 35 ee 07 03 00 48 8b 2c d8 48 8b 45 00 48 8b 00 <4c> 8b 20 4c 89 e7 e8 63 31 fe ff 85 c0 74 c7 41 80 7c 24 0a 00 0f [ 1672.006542] traps: gnome-shell[11770] general protection fault ip:7f56cd40229a sp:7ffc6a2aeb18 error:0 in libc-2.31.so[7f56cd2a0000+178000] ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: gnome-shell 3.36.2-1ubuntu1~20.04.1 ProcVersionSignature: Ubuntu 5.4.0-33.37-generic 5.4.34 Uname: Linux 5.4.0-33-generic x86_64 NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair nvidia_modeset nvidia ApportVersion: 2.20.11-0ubuntu27 Architecture: amd64 CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME Date: Wed May 27 21:21:38 2020 DisplayManager: gdm3 InstallationDate: Installed on 2019-11-25 (184 days ago) InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017) RelatedPackageVersions: mutter-common 3.36.2-1ubuntu1~20.04.1 SourcePackage: gnome-shell UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1881060/+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