[linux-audio-user] Ubuntu, ALSA, and the Roland UA-100

[Clemens Ladisch]

Scott Metoyer wrote:
> uname -a
> Linux dolores 2.6.12-10-386 #1 Fri Apr 28 13:13:44 UTC 2006 i686 GNU/Linux
> 
> cat /proc/asound/version
> Advanced Linux Sound Architecture Driver Version 1.0.9 (Sun May 29 07:31:02
> 2005 UTC).

You might want to try something newer.

> >> The driver appears to load ok, however aplay will hang when trying to
> >> play any wave files (doesn't play any sound, has to be forcibly
> >> ended).
> 
> > Is there an error message after ten seconds?
> 
> Unfortunately, no error message.  I let aplay sit for over a minute before
> killing it.

In theory, ALSA automatically aborts when no data has been transferred
for ten seconds.

What are the contents of /proc/asound/cardX/stream0 when aplay is
running?

> >> Attempting to test in the Multimedia Systems Selector results
> >> in the 'Failed to construct test pipeline for Alsa' message.  qjackctl
> >> actually starts Jack ok, but pressing the play button on the transport
> >> will not start it (it immediately flashes back to stopped)...
> 
> > Is there any error message in the system log?
> 
> I didn't see any errors in the system log...  Is there something in
> particular I should be looking for in there?

Something like "could not submit ...".


Regards,
Clemens