It is not the xorg that is crashing, but it is causing other programs to crash with the unhandled signal error. If you are using an installed system then lightdm-gtk-gre may give the error, if you are using a live iso then mate-panel etc will give an endless loop of errors as the mate session restarts.
It is not the xorg that is crashing, but it is causing other programs to crash with the unhandled signal error. If you are using an installed system then lightdm-gtk-gre may give the error, if you are using a live iso then mate-panel etc will give an endless loop of errors as the mate session restarts.