This is the system I'm using:
Kernel 2.4.23 with the -ck1 preemptibility and low-latency patches.
A Turtle Beach Santa Cruz soundcard.
Using the snd-cs46xx driver from Alsa 1.0.0rc2, compiled from source.
The overall system is Debian testing/unstable.
I'm not trying to do anything sophisticated---just playback and
recording from the Line-In jack on the card.
The problem I'm having is that, although most things work most of the
time, on occasion no sound at all is emitted. That is, applications
run without error; no error-messages or warnings appear in the logs;
but no sound is produced, no matter how I manipulate mixer
settings. The problem can always be `fixed'. If I manually remove
(with rmmod) all the sound modules from the kernel, and then re-start
the application, causing the modules to be re-loaded, things work as
they're supposed to (with no other adjustment at all to the mixer or
anything else). I get this behaviour both with recording (arecord
usually) and with playback. It happens equally with native Alsa
applications and with those that depend on OSS emulation (xine, for
example, or ogg123 (at least I *think* ogg123 uses OSS emulation)).
What is frustrating is the inability (in the absence of error messages,
or warnings in the log files) to do any trouble-shooting or diagnostic
work.
So I'd like to ask two questions:
1. Does anyone have suggestions about how I might trouble-shoot this
problem, get some useful information about it?
2. What's the likelihood that this will have been fixed in 1.0.2?
Thanks very much to all,
Jim
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