Issue: The audio just stopped coming through even though i had just been recording with no problems with three synth instrument tracks, when i saved and restarted Ardour i can no longer hear all that i just worked on.
Still getting peaks on the monitor for each track, but no audio out the speakers.
Note: on the first time restarting after the audio went away, encountered a crash then errors that deleted the window wrapping for the program.
Funny enough, I signed up because I’ve been experiencing the exact same problem. I’m running Ardour 6, also in Ubuntu Studio, and while I was able to get sound at first, duplicating a MIDI track made it so I couldn’t use my MIDI keyboard as an input device, and trying to solve the problem has made it so that all sound in Ardour is gone completely. The feedback indicator keeps blinking, so I’ve been trying off and on to rework connections in JACK, but nothing is working. I should also mention that I have been attempting to use a Presonus iTwo as a recording/playback device, so I’m wondering if there is some bad connection involved with it. I’m wondering if JACK is the problem and I should just ditch it for this Pipewire I’ve been reading about, or if it’s just something I’ve been missing.
In this case Ardour will be silent when the session is loaded.
e.g. Track A feeds Track B, and Track B is connected to Track A’s input. - Ardour cannot calculate a proper execution order.
Check Menu > Window > Log that shows some information about which connections cause the loop.
If this happens while Arodur is running, you can still get sound: The previous execution graph before the feedback connection was made remains in use. After a session reload no prior graph exists so Ardour is silent.