Public bug reported:
gnome-shell crashes with signal 11 (segmentation fault) when I try to
lock the screen while a widget in the dock is in focus. The end result
is that the screen either does not lock, and gnome-shell reloads, or it
hangs (can move mouse, but mouse clicks or keyboard presses don't seem
to have any effect). Either way no screen lock occurs.
This is on a dual-screen setup, where I have the dock visible on both
screens.
Steps to reproduce:
1) Open a terminal (or any app, terminal is just an example)
2) Open a new terminal with cntrl+N
3) Click on the terminal icon on the dock, so it shows both instances of the
terminal app
4) Try to lock the screen with super+L
5) Observe crash
Attached is the output of syslog at the exact moment the crash occurs.
Output of lsb_release -rd:
Description: Ubuntu 18.04.1 LTS
Release: 18.04
Output of apt-cache policy gnome-shell:
gnome-shell:
Installed: 3.28.3-0ubuntu0.18.04.2
Candidate: 3.28.3-0ubuntu0.18.04.2
Version table:
*** 3.28.3-0ubuntu0.18.04.2 500
500 http://nl.archive.ubuntu.com/ubuntu bionic-updates/main amd64
Packages
100 /var/lib/dpkg/status
3.28.1-0ubuntu2 500
500 http://nl.archive.ubuntu.com/ubuntu bionic/main amd64 Packages
** Affects: gnome-shell (Ubuntu)
Importance: Undecided
Status: New
** Attachment added: "output of syslog at crash"
https://bugs.launchpad.net/bugs/1799242/+attachment/5204185/+files/gnome-shell-crash-sylog.log
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https://bugs.launchpad.net/bugs/1799242
Title:
gnome-shell crashes when locking screen while dock widget is in focus
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