gnome-control-center crashed with SIGSEGV in g_object_unref() upon fractional scaling changes beyond 125%

[Nick Nemeth]

I was told to report this using ubuntu-bug instead of what I did for bug 1874583. The effects are identical to the aforementioned bug report: Changing fractional scaling to 125% scales the UI to 200%, and changing fractional scaling to 150% or 175% causes gnome-control-center to segfault. See bug 1874583 for details on how to reproduce such behavior.

ProblemType: Crash
DistroRelease: Ubuntu 20.04
Package: gnome-control-center 1:3.36.1-1ubuntu5
ProcVersionSignature: Ubuntu 5.4.0-26.30-generic 5.4.30
Uname: Linux 5.4.0-26-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu27
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Fri Apr 24 18:37:06 2020
ExecutablePath: /usr/bin/gnome-control-center
ExecutableTimestamp: 1587033037
InstallationDate: Installed on 2020-04-23 (1 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
ProcCmdline: gnome-control-center
ProcCwd: /home/mklxiv
ProcEnviron:
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
Signal: 11
SourcePackage: gnome-control-center
StacktraceTop:
 g_object_unref () from /lib/x86_64-linux-gnu/libgobject-2.0.so.0
 ?? () from /lib/x86_64-linux-gnu/libgtk-3.so.0
 ?? () from /lib/x86_64-linux-gnu/libgobject-2.0.so.0
 g_signal_emit_valist () from /lib/x86_64-linux-gnu/libgobject-2.0.so.0
 g_signal_emit () from /lib/x86_64-linux-gnu/libgobject-2.0.so.0
Title: gnome-control-center crashed with SIGSEGV in g_object_unref()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin lxd plugdev sambashare sudo
separator:

[Apport retracing service (apport)]

StacktraceTop:
 g_object_unref () from /tmp/apport_sandbox_7vtnqbev/usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0.6400.2
 _gtk_marshal_VOID__OBJECT_OBJECTv (closure=0x55f99e67aab0, return_value=<optimized out>, instance=<optimized out>, args=<optimized out>, marshal_data=<optimized out>, n_params=<optimized out>, param_types=0x55f99e67aae0) at gtkmarshalers.c:6096
 _g_closure_invoke_va () from /tmp/apport_sandbox_7vtnqbev/usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0.6400.2
 g_signal_emit_valist () from /tmp/apport_sandbox_7vtnqbev/usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0.6400.2
 g_signal_emit () from /tmp/apport_sandbox_7vtnqbev/usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0.6400.2

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.