Thanks. That crash looks a little familiar like it might be the new
Nvidia optimization introduced in GNOME 50.
Please try adding this to /etc/environment:
MUTTER_DEBUG_FORCE_RENDER_SOURCE=0
and reboot.
The relevant stack trace (for developer reference) is:
#6 0x000078218ab16c6e in g_hash_table_remove () from
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#7 0x000078218b1fa2f2 in ?? () from
/usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#8 0x000078218b2005af in ?? () from
/usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#9 0x000078218a5d0789 in ?? () from /usr/lib/x86_64-linux-gnu/libmutter-18.so.0
#10 0x000078218b200685 in g_object_unref () from
/usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#11 0x000078218ab217b0 in g_list_foreach () from
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#12 0x000078218ab271b7 in g_list_free_full () from
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#13 0x000078218a5de5a3 in ?? () from /usr/lib/x86_64-linux-gnu/libmutter-18.so.0
#14 0x000078218a5d2545 in ?? () from /usr/lib/x86_64-linux-gnu/libmutter-18.so.0
#15 0x000078218a5d4a60 in ?? () from /usr/lib/x86_64-linux-gnu/libmutter-18.so.0
#16 0x000078218a7377e1 in cogl_onscreen_swap_buffers_with_damage () from
/usr/lib/x86_64-linux-gnu/mutter-18/libmutter-cogl-18.so.0
** Summary changed:
- GNOME Shell crashes when moving windows between monitors in a multi-display
setup.
+ GNOME Shell crashes with SIGSEGV in g_hash_table_remove() called from Mutter
via cogl_onscreen_swap_buffers_with_damage()
** Package changed: gnome-shell (Ubuntu) => mutter (Ubuntu)
** Changed in: mutter (Ubuntu)
Importance: Undecided => High
** Changed in: mutter (Ubuntu)
Status: Incomplete => New
** Changed in: mutter (Ubuntu)
Assignee: (unassigned) => Daniel van Vugt (vanvugt)
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https://bugs.launchpad.net/bugs/2155232
Title:
GNOME Shell crashes with SIGSEGV in g_hash_table_remove() called from
Mutter via cogl_onscreen_swap_buffers_with_damage()
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