Changes in display configuration couses crash in gnome-shell and logout

[Alex Barmaglot]

If i try to configure multiple monitor setup, it is often causes logout, that i even can't press "keep changes" button. Also it happens that Ubuntu user suddenly logs-out when i unplug one of the monitors.

Ubuntu 22.04.1 LTS 64 bit
GNOME Version 42.4
Windowing System Wayland

I fond there is a gnome-shell crash report in /var/crash, and if i try to see the back-trace i get following

[Current thread is 1 (Thread 0x7f76ff4ee5c0 (LWP 104545))]
(gdb) bt
#0 0x0000550000000002 in ?? ()
#1 0x00007f7704af075f in ?? () from /lib/x86_64-linux-gnu/libmutter-10.so.0
#2 0x00007f7705804dfd in g_object_unref () from /lib/x86_64-linux-gnu/libgobject-2.0.so.0
#3 0x00007f7704afa240 in ?? () from /lib/x86_64-linux-gnu/libmutter-10.so.0
#4 0x00007f77056e1698 in g_hash_table_foreach () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5 0x00007f7704b065bc in ?? () from /lib/x86_64-linux-gnu/libmutter-10.so.0
#6 0x00007f7704b2095e in ?? () from /lib/x86_64-linux-gnu/libmutter-10.so.0
#7 0x00007f7704b0662d in ?? () from /lib/x86_64-linux-gnu/libmutter-10.so.0
#8 0x00007f77056fdc24 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#9 0x00007f77057526f8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007f77056fd293 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007f7704a6d849 in meta_context_run_main_loop () from /lib/x86_64-linux-gnu/libmutter-10.so.0
#12 0x00005574c350cf12 in ?? ()
#13 0x00007f770479ed90 in __libc_start_call_main (main=main@entry=0x5574c350ca70, argc=argc@entry=1, argv=argv@entry=0x7ffe866c19f8) at ../sysdeps/nptl/libc_start_call_main.h:58
#14 0x00007f770479ee40 in __libc_start_main_impl (main=0x5574c350ca70, argc=1, argv=0x7ffe866c19f8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffe866c19e8)
    at ../csu/libc-start.c:392
#15 0x00005574c350d1b5 in ?? ()

[Launchpad Janitor (janitor)]

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

[Daniel van Vugt (vanvugt)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. This particular bug has already been reported and is a duplicate of bug 1969422, so it 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. Feel free to continue to report any other bugs you may find.