[LAD] Trouble setting h/w MIDI device as output port

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To: linux-audio-dev@lists.linuxaudio.org <linux-audio-dev@...>
Date: Friday, November 16, 2012 - 12:37 pm

I've been stumped for a while as to why my Tascam US-122 box stopped
working as a writeable midi port.

Using Debian Wheezy, everything was working up to a few weeks ago. MIDI
input still works and there's nothing suspicious in the /var/logs.

But...

nick@arial:~$ aplaymidi -l
Port Client name Port name
14:0 Midi Through Midi Through Port-0
20:0 TASCAM US-X2Y TASCAM US-X2Y MIDI 1
24:0 USB MIDI keyboard USB MIDI keyboard MIDI 1
nick@arial:~$ aplaymidi -p 20:0 Desktop/076903b_.mid
Cannot connect to port 20:0 - Input/output error
nick@arial:~$ uname -a
Linux arial 3.2.0-4-686-pae #1 SMP Debian 3.2.32-1 i686 GNU/Linux

Using older kernels doesn't help. Connecting e.g. rosegarden to the
TASCAM US-122 in qjackctl fails silently (the link is not made in the
connections window and nothing is printed on the console). Can't see
any module loading issues.

Is anybody else seeing this behaviour? I'd submit a bug report but
really can't figure out exactly what isn't working :(

nick@arial:~$ lsmod
Module Size Used by
snd_usb_audio 71309 0
snd_hrtimer 12540 0
snd_seq_dummy 12455 0
snd_usb_usx2y 22748 2
snd_usbmidi_lib 18844 2 snd_usb_audio,snd_usb_usx2y
snd_seq_midi 12744 0
snd_seq_midi_event 13124 1 snd_seq_midi
snd_rawmidi 18376 2 snd_seq_midi,snd_usbmidi_lib
...
usbcore 104470 8
ehci_hcd,uhci_hcd,uas,usb_storage,snd_usb_audio,snd_usbmidi_lib,snd_usb_usx2y
usb_common 12338 1 usbcore

Nick/.
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