Happened again on the same system, all terminals vanished. .xsession-errors:
(mate-terminal:2663): Gtk-CRITICAL **: 11:40:52.591: gtk_widget_get_settings: assertion 'GTK_IS_WIDGET (widget)' failed (mate-terminal:2663): GLib-GObject-CRITICAL **: 11:40:52.673: g_object_get: assertion 'G_IS_OBJECT (object)' failed (mate-terminal:2663): GLib-CRITICAL **: 11:40:52.673: Source ID 2688 was not found when attempting to remove it (mate-terminal:2663): GLib-CRITICAL **: 11:40:52.673: Source ID 2698 was not found when attempting to remove it dmesg: 58110.718611] mate-terminal[2663]: segfault at 48500000484 ip 00007fdb36baf890 sp 00007fff89523e30 error 4 in libvte-2.91.so.0.5400.2[7fdb36ba6000+3f000] [58110.718626] Code: 00 c3 0f 1f 84 00 00 00 00 00 53 48 83 ec 20 64 48 8b 04 25 28 00 00 00 48 89 44 24 18 31 c0 48 8b 07 48 85 c0 74 13 48 89 fb <48> 8b 38 e8 e8 7f ff ff 85 c0 75 24 0f 1f 40 00 48 8b 44 24 18 64 Error indicates a library from libvte-2.91-0 (Terminal emulator widget for GTK+ 3.0 - runtime files). Any one can help? -- Kind regards, Piotr Drozdek