Sorry for the delay, but I was able to generate a backtrace as described by Dirk Seidel in comment #7 and comment #8. The backtrace is attached.
** Attachment added: "gdb-X.txt" https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1510998/+attachment/4512905/+files/gdb-X.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1510998 Title: Xorg crashes with segfault on 15.10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1510998/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
