Whilst this is a known problem, that vinagre doesn't support the undocumented authentication types used by ARD server by default, a suitable current workaround seems to be to enable the "VNC viewers may control screen with password" option in system preferences. After doing this auth type 2 becomes available and vinagre can successfully connect using the given password.
I have asked upstream if they can do anything to better feed this information back to the user on failed connection. ** Changed in: vinagre (Ubuntu) Status: New => Confirmed -- unable to connect to newer Mac OS X computers using ARD 3.1+ or bonjour screensharing https://bugs.launchpad.net/bugs/390364 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to vinagre in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs