Assuming that backtrace is accurate, looks like a race condition that can result in device->proximity to be undefined sometimes.
** Patch added: "504_exevent_proximity_null_ptr_check.patch" https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/764700/+attachment/2193316/+files/504_exevent_proximity_null_ptr_check.patch -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/764700 Title: Xorg crashed with SIGABRT in utouch_frame_sync() To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/764700/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
