The Krita code that deals with tablet events seems to be this in kis_canvas_controller.cpp:
----- void KisCanvasController::Private::emitPointerPositionChangedSignals(QEvent *event) { if (!coordinatesConverter) return; QPoint pointerPos; QMouseEvent *mouseEvent = dynamic_cast<QMouseEvent*>(event); if (mouseEvent) { pointerPos = mouseEvent->pos(); } else { QTabletEvent *tabletEvent = dynamic_cast<QTabletEvent*>(event); if (tabletEvent) { pointerPos = tabletEvent->pos(); } } ---- The obvious failure point being that if the argument is neither a mouse nor a tablet event, then pointerPos is uninitialized. I did not have time to check yet whether the bug is caused by this or something else entirely. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/799202 Title: wacom stylus jumps with latest xserver-xorg-core To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/799202/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs