ubuntustudio freeze and USB midi interface

Roberto Nunnari robi at nunnari.net
Sun Jul 19 04:11:07 BST 2009

Hi everybody.

As I would like to try to make music using my pc, a few days ago I tried 
ubuntustudio 9.04 but I had to deinstall it because it kept freezing.. I 
searched the web and found that I'm not alone.. the other posts I found 
about it talked about a buggy kernel.. but I don't know if that is 
really the problem I'm facing.

So.. I decided to start using plain ubuntu with ardour/jack and then, 
when I find I can find my way around with the software and need a more 
efficient platform, try to go back to ubuntustudio, in the hope that in 
the meanwhile a solution will be out.

If somebody would be so kind to try help me, just ask me for the info 
needed in order to analize the problem, and I'll be more than happy to 
provide it.

Anyways, I'm trying to use ardour and jack, but I'm stuck with the midi 
interface that is not seen by jack.. I believe is not seen by the OS.

Any help welcome. Thanks!


Keyboard: Roland W-30
Midi interface: Prodipe MIDI USB 4i4o 

$ cat /dev/sndstat
Sound Driver:3.8.1a-980706 (ALSA v1.0.18rc3 emulation code)
Kernel: Linux ubudesk 2.6.28-13-generic #45-Ubuntu SMP Tue Jun 30 
19:49:51 UTC 2009 i686
Config options: 0

Installed drivers:
Type 10: ALSA emulation

Card config:
HDA Intel at 0xddcf8000 irq 19
USB Device 0x471:0x310 at usb-0000:00:1d.0-1, full speed
USB Midi 4i4o at usb-0000:00:1d.1-2, full speed

Audio devices:
0: AD198x Analog (DUPLEX)
1: USB Audio


Midi devices:
2: USB Midi 4i4o

31: system timer

0: Analog Devices AD1986A
1: USB Mixer
2: USB Mixer

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