Trying to change the acceleration/threshold on Xwayland cannot work, and the corresponding handler xwl_pointer_control() is a no-op.
Yet, an X11 client trying to change those on the touch device may possibly cause a crash because the touch device in Xwayland doesn't set that.
Initialize the touch device's PtrFeedback to make sure that just cannot happen.
ab76272a7 xwayland: Add PtrFeedback to the touch device
hw/xwayland/xwayland-input.c | 4 ++++
1 file changed, 4 insertions(+)