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Date:      Wed, 26 Jul 2000 20:21:08 -0400
From:      Peter Radcliffe <pir@pir.net>
To:        freebsd-stable@freebsd.org
Subject:   Re: [pcm0 play interrupt timeout, channel dead] and other problems
Message-ID:  <20000726202108.C1657@pir.net>
In-Reply-To: <20000726161209.A12092@hdroam.ssd.loral.com>; from hdiwan@pobox.com on Wed, Jul 26, 2000 at 04:12:09PM -0700
References:  <20000723151352.A3853@hdroam.ssd.loral.com> <00072615312000.04245@dbm.wireless.net> <20000726161209.A12092@hdroam.ssd.loral.com>

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Hasan Diwan <hdiwan@pobox.com> probably said:
> 	It's a bug in the driver. It broke sometime between July 5 and
> today. July 5's STABLE seems to work fine.
> 
> * Devin Butterfield <dbutter@wireless.net> [000726 16:05]:

> > I'm having this same problem with pcm on a sony vaio Z505SX (has
> > the neomagic chipset). Attempting to play an mp3 file with mpg123
> > results in "pcm0 play interrupt timeout, channel dead" and then
> > /dev/dsp is locked. Attempting to play short .wav files results in
> > looping of a half second segment of the .wav file for a long
> > time...then sound stops working.

> > Is this a bug in the pcm driver, or is this the result of poorly supported 
> > hardware (specifically the neomagic chipset in the vaio)??

I was getting this with a more recent stable (yesterday) on my Z505HS,
until I turned 'pnp os' off in the bios. This is the yamaha audio
chipset, however.

I'm still getting some problems with the machine - audio stops working
after a suspend/restore and I cannot get suspend to disk working at
all, but I'm not convinced I created he suspend partition correctly :/

pcmcia seems to work fine with the defaults, but not in polling mode.
usb seems to work, although there are errors printed sometimes through
suspend/resume (not sure if it works afterwards, though).

Had something odd happen when I tried to bring the built in fxp
interface up after a suspend resume, using the fxp kernel module; hard
hang. I havn't managed to repeat it and I need to recompile a kernel
with ddb.

More after I do some testing, though.

P.

-- 
pir                  pir@pir.net                    pir@net.tufts.edu



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