From alsa-user-owner@alsa.jcu.cz  Mon Sep 28 19:28:19 1998
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	Mon, 28 Sep 1998 19:25:50 +0200
Date: Mon, 28 Sep 1998 19:25:46 +0200 (CEST)
From: Jaroslav Kysela <perex@jcu.cz>
To: harryrat@kawo1.rwth-aachen.de
cc: alsa-user@alsa.jcu.cz
Subject: Re: PCM probs with 2 sndcards ?
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On Mon, 28 Sep 1998 harryrat@kawo1.rwth-aachen.de wrote:

> Hi there !
> 
> I just noticed a strange problem...
> 
> for some coding stuff I just installed a second soundcard...it is an SB32
> PNP, first card is a GUS PNP...
> 
> I had no probs to get the SB running with the snd-sb16 modules...but now I
> have a little problem with recording from the 1st PCM device of my GUS...
> for some reason the read() call for the recording direction doesn't
> return...this happened not only with my app but with the pcm.c test proggy
> from the alsa CVS server...right now I'm too lazy to remove the SB from my
> box in order to test if it is really the problem...(I had a hard time
> to put the card into the ISA slot wihtout breaking anything inside...).
> 
> This thing happens with pre7 and pre8...at least with pre7 I had no probs
> as long as the GUS was the only card...

There must be probably some hidden hardware confict.. GUS probably doesn't
generate interrupts (you can check this by cat /proc/interrupts). Check
IRQ lines and DMA channels and try rearrange these resources if possible.

PCM code for two soundcards is working (tested before one minute with
GUS PnP and Ensoniq ES1370).

						Jaroslav

-----
Jaroslav Kysela <perex@jcu.cz>
Academic Computer Centre, University of South Bohemia
Branisovska 31, C. Budejovice, CZ-370 05 Czech Republic



