[PlanetCCRMA] USB midi question

Oded Ben-Tal oded@ccrma.Stanford.EDU
Wed May 2 01:52:01 2007


> Post what you see if you do:
>  cat /proc/asound/cards
  0 [I82801DBICH4   ]: ICH4 - Intel 82801DB-ICH4
                       Intel 82801DB-ICH4 with AD1981B at 0xd0000c00, irq 
11
  1 [Quattro        ]: USB-Audio - USB Audio Quattro
                       M Audio USB Audio Quattro at usb-0000:00:1d.1-1, 
full speed
  2 [Modem          ]: ICH-MODEM - Intel 82801DB-ICH4 Modem
                       Intel 82801DB-ICH4 Modem at 0x2400, irq 11

>  cat /proc/asound/devices
   0: [ 0]   : control
   1:        : sequencer
  16: [ 0- 0]: digital audio playback
  20: [ 0- 4]: digital audio playback
  24: [ 0- 0]: digital audio capture
  25: [ 0- 1]: digital audio capture
  26: [ 0- 2]: digital audio capture
  27: [ 0- 3]: digital audio capture
  32: [ 1]   : control
  33:        : timer
  40: [ 1- 0]: raw midi
  48: [ 1- 0]: digital audio playback
  49: [ 1- 1]: digital audio playback
  56: [ 1- 0]: digital audio capture
  57: [ 1- 1]: digital audio capture
  64: [ 2]   : control
  80: [ 2- 0]: digital audio playback
  88: [ 2- 0]: digital audio capture

> If you start qjackctl, what do you see in the Connect panel's MIDI tab?

Jack never worked on my system properly. Here is what I get when I try to 
start jack:
jackd -d alsa -d hw:1,0
jackd 0.101.1
Copyright 2001-2005 Paul Davis and others.
jackd comes with ABSOLUTELY NO WARRANTY
This is free software, and you are welcome to redistribute it
under certain conditions; see the file COPYING for details

JACK compiled with System V SHM support.
loading driver ..
creating alsa driver ... 
hw:1,0|hw:1,0|1024|2|48000|0|0|nomon|swmeter|-|32bit
control device hw:1
configuring for 48000Hz, period = 1024 frames, buffer = 2 periods
Note: audio device hw:1,0 doesn't support a 32bit sample format so JACK 
will try a 24bit format instead
Note: audio device hw:1,0 doesn't support a 24bit sample format so JACK 
will try a 16bit format instead
Sorry. The audio interface "hw:1,0" doesn't support any of the hardware 
sample formats that JACK's alsa-driver can use.
ALSA: cannot configure capture channel
cannot load driver module alsa
no message buffer overruns