popsquares crashed with signal 5 in _XEventsQueued()

[John McCormick]

I had set the screensaver switch off and also, the power (while running with AC), I had set the action switch to "never shut off" but the system seemed to ignore those switches (mysteriously).
--- (just my observation, FYI) -- John McCormick
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ProblemType: Crash
DistroRelease: Ubuntu 21.04
Package: mate-screensaver 1.24.1-1
ProcVersionSignature: Ubuntu 5.8.0-43.49-generic 5.8.18
Uname: Linux 5.8.0-43-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.11-0ubuntu59
Architecture: amd64
CasperMD5CheckResult: unknown
Date: Thu Feb 18 23:44:07 2021
ExecutablePath: /usr/lib/mate-screensaver/mate-screensaver/popsquares
ProcCmdline: /usr/lib/mate-screensaver/mate-screensaver/popsquares
ProcEnviron:
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 LANGUAGE=en_US
Signal: 5
SourcePackage: mate-screensaver
StacktraceTop:
 ?? () from /lib/x86_64-linux-gnu/libX11.so.6
 ?? () from /lib/x86_64-linux-gnu/libX11.so.6
 _XEventsQueued () from /lib/x86_64-linux-gnu/libX11.so.6
 XPending () from /lib/x86_64-linux-gnu/libX11.so.6
 ?? () from /lib/x86_64-linux-gnu/libgdk-3.so.0
Title: popsquares crashed with signal 5 in _XEventsQueued()
UpgradeStatus: Upgraded to hirsute on 2021-02-13 (5 days ago)
UserGroups: adm cdrom dip lpadmin lxd plugdev sambashare sudo
separator:

[Apport retracing service (apport)]

StacktraceTop:
 XPending (dpy=0x5619b6aacd60) at ../../src/Pending.c:55
 gdk_check_xpending (display=<optimized out>) at ../../../../../gdk/x11/gdkeventsource.c:269
 gdk_event_source_check (source=0x5619b6ad2e70) at ../../../../../gdk/x11/gdkeventsource.c:306
 g_main_context_check (context=context@entry=0x5619b6ad2ef0, max_priority=2147483647, fds=fds@entry=0x5619b6c842e0, n_fds=-1638193496, n_fds@entry=3) at ../../../glib/gmain.c:3943
 g_main_context_iterate (context=0x5619b6ad2ef0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../glib/gmain.c:4116

[Launchpad Janitor (janitor)]

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