I don't know exactly what the deal is with this. There appears to be 4 jacks: media-sound/jack media-sound/jack2 media-sound/jack-audio-connection-kit media-sound/jack-audio-connection-kit (unmasked to >v1.0) The virtual/jack ebuild appears to use #2 and #3. Ardour just wants to use #3 (instead of using the virtual). Are these intentional? Reproducible: Always
This is done now in ardour 5.0 and 9999.
*** Bug 612024 has been marked as a duplicate of this bug. ***