Originally Posted by David Ronis
I applied the just reported patch to my git master xserver sources and reinstalled and subsequently reinstalled Nvidia 190.42. On restart, I have the same problem with xinerama, namely, while graphics is fine on both screens, the mouse behaves properly only on Screen0 (when I move to Screen1 it jumps around wildly and I SIGSEGV after a while [a bug report has been posted on this forum]).
So there are two independent SIGSEGV's. One related to Xinerama, second related to Gtk applications.