snd-virmidi loads, but doesn't pass data

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I have the snd-virmidi module loaded. The virmidi devices show up in aconnect -lio, just fine. I can connect devices to them. 

But, no data actually gets passed through!

$ sudo modprobe snd-virmidi

$ aconnect -lio
client 0: 'System' [type=kernel]
    0 'Timer           '
    1 'Announce        '
	Connecting To: 15:0, 132:0
client 14: 'Midi Through' [type=kernel]
    0 'Midi Through Port-0'
client 20: 'Keystation Pro 88' [type=kernel]
    0 'Keystation Pro 88 MIDI 1'
    1 'Keystation Pro 88 MIDI 2'
client 24: 'Virtual Raw MIDI 2-0' [type=kernel]
    0 'VirMIDI 2-0     '
client 25: 'Virtual Raw MIDI 2-1' [type=kernel]
    0 'VirMIDI 2-1     '
client 26: 'Virtual Raw MIDI 2-2' [type=kernel]
    0 'VirMIDI 2-2     '
client 27: 'Virtual Raw MIDI 2-3' [type=kernel]
    0 'VirMIDI 2-3     '
client 128: 'FreeBoB Jack MIDI' [type=user]
    0 'dev1c_MidiPort_1'
    1 'dev1p_MidiPort_1'
client 129: 'FLUID Synth (fretless)' [type=user]
    0 'Synth input port (fretless:0)'
client 130: 'FLUID Synth (piano)' [type=user]
    0 'Synth input port (piano:0)'
client 131: 'FLUID Synth (rhodes)' [type=user]
    0 'Synth input port (rhodes:0)'


$  aconnect 128:0 24:0
$ aconnect 24:0 130:0


$ aconnect -lio
client 0: 'System' [type=kernel]
    0 'Timer           '
    1 'Announce        '
	Connecting To: 15:0, 132:0
client 14: 'Midi Through' [type=kernel]
    0 'Midi Through Port-0'
client 20: 'Keystation Pro 88' [type=kernel]
    0 'Keystation Pro 88 MIDI 1'
    1 'Keystation Pro 88 MIDI 2'
client 24: 'Virtual Raw MIDI 2-0' [type=kernel]
    0 'VirMIDI 2-0     '
	Connecting To: 130:0
	Connected From: 128:0
client 25: 'Virtual Raw MIDI 2-1' [type=kernel]
    0 'VirMIDI 2-1     '
client 26: 'Virtual Raw MIDI 2-2' [type=kernel]
    0 'VirMIDI 2-2     '
client 27: 'Virtual Raw MIDI 2-3' [type=kernel]
    0 'VirMIDI 2-3     '
client 128: 'FreeBoB Jack MIDI' [type=user]
    0 'dev1c_MidiPort_1'
	Connecting To: 24:0
    1 'dev1p_MidiPort_1'
client 129: 'FLUID Synth (fretless)' [type=user]
    0 'Synth input port (fretless:0)'
client 130: 'FLUID Synth (piano)' [type=user]
    0 'Synth input port (piano:0)'
	Connected From: 24:0
client 131: 'FLUID Synth (rhodes)' [type=user]
    0 'Synth input port (rhodes:0)'


Hmm....


$ aseqdump -p 24:0
Waiting for data. Press Ctrl+C to end.
Source_ Event_________________ Ch _Data__


... nothing happens!! 

Ctl-C

$ aplaymidi -p 24:0 some-file-definitely-with-midi-data.mid &

$ aseqdump -p 24:0
Waiting for data. Press Ctrl+C to end.
Source_ Event_________________ Ch _Data__


.... still nothing!


What's going on?

This is with:
Linux mac 2.6.19.1-rt15-11-nocpufreq #1 SMP PREEMPT Mon Feb 5 14:42:46 PST 2007 i686 GNU/Linux

Advanced Linux Sound Architecture Driver Version 1.0.13 (Tue Nov 28 14:07:24 2006 UTC).

- -ken
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