ubuntustudio freeze and USB midi interface

Mathias Krause mathias.sam at web.de
Sun Jul 19 16:38:35 BST 2009


I'm also running Ubuntu Studio 9.04 and i also got the problem, that it 
freezes very often. One thing, I found, was that a lot of the freezes 
had to do with PulseAudio. So i took a HowTo about removing the 
PulseAudio stuff.

Now, my system is more stable than before, but some rare freezings are 
still there...

Btw: No problems with MIDI (usb)...


Roberto Nunnari wrote:
> 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!
> Robi
> Keyboard: Roland W-30
> Midi interface: Prodipe MIDI USB 4i4o 
> (http://www.prodipe.com/index.php?ml=16&cat=3&lang=9&pidpress=192)
> $ 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
> Synth devices: NOT ENABLED IN CONFIG
> Midi devices:
> 2: USB Midi 4i4o
> Timers:
> 31: system timer
> Mixers:
> 0: Analog Devices AD1986A
> 1: USB Mixer
> 2: USB Mixer

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