Hi, On Sun, Mar 09, 2003 at 03:19:07PM -0800, [EMAIL PROTECTED] wrote: > Message: 1 > Date: Sun, 9 Mar 2003 22:42:44 +0000 (GMT) > From: Iain Kennedy <[EMAIL PROTECTED]> > Reply-To: [EMAIL PROTECTED] > To: [EMAIL PROTECTED] > Subject: [Alsa-user] VIA8233 Debian Woody Intermittent PCM Distortion > > Hello, > > I've installed debian and it's alsa packages just fine on my Via EPIA > mainboard, and configured it according to the instructions from the alsa > website. I have intermittent distortion when using the PCM. About 80% of > the time when I use mpg123 to play tunes, there is a crackling distortion. > It varies in intensity from attempt to attempt. Occasionally it is > absolutely crystal clear. The distortion never comes and goes within a > particular command. > > I've tried using xmms to play the MP3's, and if the distortion is there > for one tune, it is there for all tunes for the entire session. If it > isn't there, then it will be fine until I quit xmms and start again. Hmm, that just sounds like alsa/alsa-kernel/pci/via82xx.c/snd_via686_playback_prepare() might be the culprit, since the initial sound format preparation seems to fail somehow. Could you perhaps fiddle with that function a bit? (e.g. changing snd_ac97_set_rate() and via686_setup_format() invocation, adding some udelay()s, trying to initialize it twice, reordering sound preparation steps etc.) Or maybe the problem resides in snd_via82xx_pcm_open(), but that function is much less interesting.
> Does anybody have any ideas about this.. I can send further information on > my configuration if necessary.. I've tacked on my modules etc below. But you're lacking /proc/interrupts output :-\ -- Andreas Mohr Stauferstr. 6, D-71272 Renningen, Germany Tel. +49 7159 800604 http://mohr.de.tt ------------------------------------------------------- This SF.net email is sponsored by: Etnus, makers of TotalView, The debugger for complex code. Debugging C/C++ programs can leave you feeling lost and disoriented. TotalView can help you find your way. Available on major UNIX and Linux platforms. Try it free. www.etnus.com _______________________________________________ Alsa-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/alsa-user
