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Date:      Sun, 07 Dec 1997 16:40:22 -0500
From:      Andrew Lankford <arlankford@nina.pagesz.net>
To:        freebsd-questions@FreeBSD.ORG
Subject:   Mail from NCSA X Mosaic 2.7b5
Message-ID:  <199712072140.QAA11730@pagesz.net>

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I'm wondering if someone over at FreeBSD.ORG can
help me with this problem I have with my
ESS chipset (1688f? ) sound card.  I've set the jumpers 
to Soundblaster Pro 3.1 emulation.

I've tried compiling a new kernel with an entry in it for sb0 
using irq7 (which is shared with my printer):

device sb0      at isa? port 0x220 irq 7 conflicts drq 1 conflicts vector sbintr
#options SBC_DMA=3 

As you might guess, I've tried a DMA setting of 1 and 3.
I know that DMA=3 works just fine in windows and on Doom
for msdos, but whenever I try to play an digital audio 
file in freebsd (cat sound.au >/dev/audio , for instance)
the sound will play ok for one second, then shut off for 
a few seconds and then come back on again (halfway thru the
au file) with the accompanying error:

root> cat voghormi.au >/dev/audio
Dec  7 03:08:09 arlankford /kernel: Sound: DMA timed out - IRQ/DRQ config error?
Dec  7 03:08:09 arlankford /kernel: Sound: DMA timed out - IRQ/DRQ config error?
root> 

It does the same thing for both DMA settings, but 
playmidi -4, -f  works ok.  Here's what the kernel says while 
it's booting up:

Dec  7 02:00:48 arlankford /kernel: apm0: disabled, not probed.
Dec  7 02:00:48 arlankford /kernel: sb0 at 0x220 irq 7 drq 1 on isa
Dec  7 02:00:48 arlankford /kernel: sb0: <SoundBlaster Pro 3.1>
Dec  7 02:00:49 arlankford /kernel: opl0 at 0x388 on isa
Dec  7 02:00:49 arlankford /kernel: opl0: <Yamaha OPL-3 FM>
Dec  7 02:00:51 arlankford lpd[99]: restarted
Dec  7 02:01:34 arlankford /kernel: Sound: DMA timed out - IRQ/DRQ config error?
Dec  7 02:01:48 arlankford last message repeated 7 times

Is the problem  fairly simple?  (I hope that it is of course.. I know when I'm
in over my head!) 

Thanks for the help

Andrew Lankford

--IAA00563.881499652/arlankford.pagesz.net--





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