gnome-shell crashed with signal 5

Bug #1756679 reported by Rachel Greenham on 2018-03-18
This bug affects 1 person
Affects Status Importance Assigned to Milestone
gnome-shell (Ubuntu)

Bug Description

Probably also affects ubuntu dock...

... because this signal 5 error happened right after I tried to turn off ubuntu dock (after which I would have turned on dash to dock (installed from repo) to configure some custom settings, and then switch back to ubuntu-dock). Ubuntu dock itself did not turn off, but this bug report got launched almost immediately.

Earlier I had already observed that I could not switch off ubuntu dock, but I didn't see this signal 5 error. Since then I just ran today's updates, but I didn't see that either gnome-shell or gnome-shell-extension-ubuntu-dock received an update. For that reason I'm not certain the signal 5 error is directly related to my problem or if it happened separately and the bug report happened to come up at the right time to appear causal.

Using the gnome extensions website (via firefox) to do all this. The toggle switch on ubuntu dock appears to work, but ubuntu dock itself does not switch off.

This used to work, until fairly recently. I have a laptop also running 18.04 where I've already successfully done what I was attempting to do here today.

NB: The extensions tab on gnome-tweak also doesn't work. The toggle at the top is on and it lists all the extensions, but only shows them all off. But I imagine that should be a separate bug report.

NB: Turning on dash to dock after turning off ubuntu dock (but seeing that it didn't actually disappear) causes the shell to crash completely and exit; subsequently unable to log in until I ssh in from another machine and dconf reset -f /org/gnome/

(I'm getting used to having mostly default settings these days!)

BTW the only changes I wanted to make to the ubuntu dock settings were:

1. to make its background exactly match that of the top bar in Ambiance, when touched and not touched by other windows

2. to be able to click on launchers for running apps to minimise them.

I'd be happy with those being in the new Dock settings panel alongside auto-hide, icon size and position on screen. Or at least the second one (click action) and the first just being how it is by default! :-)

ProblemType: Crash
DistroRelease: Ubuntu 18.04
Package: gnome-shell 3.28.0-0ubuntu1
ProcVersionSignature: Ubuntu 4.15.0-12.13-generic 4.15.7
Uname: Linux 4.15.0-12-generic x86_64
ApportVersion: 2.20.8-0ubuntu10
Architecture: amd64
CurrentDesktop: GNOME-Greeter:GNOME
Date: Sun Mar 18 12:36:08 2018
DisplayManager: gdm3
ExecutablePath: /usr/bin/gnome-shell

InstallationDate: Installed on 2018-02-20 (25 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Alpha amd64 (20180214)
ProcCmdline: /usr/bin/gnome-shell
 PATH=(custom, no user)
Signal: 5
SourcePackage: gnome-shell
 () at /usr/lib/x86_64-linux-gnu/
 _XIOError () at /usr/lib/x86_64-linux-gnu/
 _XReply () at /usr/lib/x86_64-linux-gnu/
 XSync () at /usr/lib/x86_64-linux-gnu/
 () at /usr/lib/x86_64-linux-gnu/
Title: gnome-shell crashed with signal 5
UpgradeStatus: No upgrade log present (probably fresh install)

Thank you for taking the time to report this crash and helping to make this software better. This particular crash has already been reported and is a duplicate of bug #1748450, so is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Please continue to report any other bugs you may find.

information type: Private → Public
tags: removed: need-amd64-retrace
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