461/462e supported in official V4L DVB, but need external power for LNB. Both need some tuner/demod firmare files,
Old Versions of 461e (till Rev. B6H9): yes. New Versions of the 461e (Rev B7H9 and Rev B8H9): NO. Its no Linux-Support for current Versions of this Stick.
See: de:linux [FAQ]