Comment 22 for bug 1766938

I'm seeing this crash on a brand new Ubuntu 18.04 install running on KVM (the host itself is on 16.04). When I connect via KVM's VNC and try to open settings app, I get a 100% crash. It's weird because I haven't installed any additional software.

Mar 18 22:42:11 riv18 org.gnome.Shell.desktop[2561]: **
Mar 18 22:42:11 riv18 org.gnome.Shell.desktop[2561]: mutter:ERROR:x11/iconcache.c:303:standard_pict_format_for_depth: code should not be reached
Mar 18 22:42:11 riv18 org.gnome.Shell.desktop[2561]: == Stack trace for context 0x55663fe03320 ==
Mar 18 22:42:11 riv18 gnome-session[2482]: gnome-session-binary[2482]: WARNING: Application 'org.gnome.Shell.desktop' killed by signal 6
Mar 18 22:42:11 riv18 gnome-session-binary[2482]: WARNING: Application 'org.gnome.Shell.desktop' killed by signal 6
Mar 18 22:42:12 riv18 gsd-media-keys[2649]: g_variant_get_va: assertion 'value != NULL' failed
Mar 18 22:42:12 riv18 gsd-media-keys[2649]: g_variant_unref: assertion 'value != NULL' failed
Mar 18 22:42:12 riv18 org.gnome.Shell.desktop[2942]: current session already has an ibus-daemon.
Mar 18 22:42:12 riv18 dbus-daemon[445]: [system] Activating via systemd: service name='org.freedesktop.GeoClue2' unit='geoclue.service' requested by ':1.178' (uid=1000 pid=2942 comm="/usr/bin/gnome-shell " label="unconfined")
Mar 18 22:42:12 riv18 systemd[1]: Starting Location Lookup Service...
Mar 18 22:42:13 riv18 dbus-daemon[445]: [system] Successfully activated service 'org.freedesktop.GeoClue2'
Mar 18 22:42:13 riv18 systemd[1]: Started Location Lookup Service.
Mar 18 22:42:13 riv18 gnome-shell[2942]: Telepathy is not available, chat integration will be disabled.
Mar 18 22:42:13 riv18 gsd-media-keys[2649]: g_variant_get_va: assertion 'value != NULL' failed
Mar 18 22:42:13 riv18 gsd-media-keys[2649]: g_variant_unref: assertion 'value != NULL' failed
Mar 18 22:42:13 riv18 gnome-shell[2942]: JS WARNING: [/<email address hidden>/appIcons.js 1028]: unreachable code after return statement
Mar 18 22:42:13 riv18 org.gnome.Shell.desktop[2942]: **
Mar 18 22:42:13 riv18 org.gnome.Shell.desktop[2942]: mutter:ERROR:x11/iconcache.c:303:standard_pict_format_for_depth: code should not be reached