I tried to forkhttps://gitlab.freedesktop.org/mesa/kmscube.git <https://gitlab.freedesktop.org/mesa/kmscube.git> but it just shows a bubble saying "you have reached your project limit" so I don't see how to submit a merge request. I have a small change to add a connector_id command line option to kmscube to select the connector. I could post a patch.
How should I proceed?