Thanks @dirk-thomas, you're right, that causes things to work the way I expect. This was not necessary in the ROS1 world, did roslaunch happen to set this itself? Is this perhaps something that belongs in ros2's `launch`? --- [Visit Topic](https://discourse.ros.org/t/ros2-launch-not-interleaving-stdout/2721/3) or reply to this email to respond. If you do not want to receive messages from ros-users please use the unsubscribe link below. If you use the one above, you will stop all of ros-users from receiving updates. ______________________________________________________________________________ ros-users mailing list ros-users@lists.ros.org http://lists.ros.org/mailman/listinfo/ros-users Unsubscribe: