Comment 3 for bug 1108104

This has always been a problem. You can't have two MTP clients talking to one device at the same time. Rhythmbox tries to talk directly at the same time as gvfs and two stomp on each other. It was hard to notice before because gvfs would simply fail to connect at all using the gphoto2 backend, and rhythmbox will fail too as it doesn't use the mtp API in an android-safe way either.