[alsa-devel] alsa-util.c: snd_pcm_avail() returned a value that is exceptionally large: 349696 bytes (1821 ms).
superquad.vortex2 at gmail.com
Sat Jan 2 03:05:56 CET 2010
2009/12/31 Chris <cpollock at embarqmail.com>
> On Thu, 2009-12-31 at 12:20 +0800, Raymond Yau wrote:
> > 2009/12/31 Chris <cpollock at embarqmail.com>
> > > On Wed, 2009-12-30 at 15:07 +0800, Raymond Yau wrote:
> > > > Please post the output of alsa-info.sh
> > > Raymond, I can't seem to locate that script.
> > >
> Thank you, see attached script output.
> > > > Do your VIA 8237/ens1371 has any digital output/input ?
> > > That I can't answer
> > >
> > Do your motherboard/sound card has optical/coaxial spdif ?
> Not that I can see.
D: alsa-mixer.c: Checking for playback on Analog Mono (analog-mono)
D: alsa-util.c: Trying hw:0 with SND_PCM_NO_AUTO_FORMAT ...
D: alsa-util.c: Managed to open hw:0
D: alsa-util.c: Maximum hw buffer size is 682 ms
D: alsa-util.c: Set buffer size first, period size second.
I: alsa-util.c: Device hw:0 doesn't support 44100 Hz, changed to 48000 Hz.
Note: VIA8233/5/7 (not VIA8233A) can support DXS (direct sound)
channels as the first PCM. On these channels, up to 4
streams can be played at the same time, and the controller
can perform sample rate conversion with separate rates for
As default (dxs_support = 0), 48k fixed rate is chosen
except for the known devices since the output is often
noisy except for 48k on some mother boards due to the
bug of BIOS.
Please try once dxs_support=5 and if it works on other
sample rates (e.g. 44.1kHz of mp3 playback), please let us
know the PCI subsystem vendor/device id's (output of
If dxs_support=5 does not work, try dxs_support=4; if it
doesn't work too, try dxs_support=1. (dxs_support=1 is
usually for old motherboards. The correct implemented
board should work with 4 or 5.) If it still doesn't
work and the default setting is ok, dxs_support=3 is the
right choice. If the default setting doesn't work at all,
try dxs_support=2 to disable the DXS channels.
In any cases, please let us know the result and the
subsystem vendor/device ids. See "Links and Addresses"
**** List of PLAYBACK Hardware Devices ****
card 0: V8237 [VIA 8237], device 0: VIA 8237 [VIA 8237]
Subdevice #0: subdevice #0
Subdevice #1: subdevice #1
Subdevice #2: subdevice #2
Subdevice #3: subdevice #3
card 0: V8237 [VIA 8237], device 1: VIA 8237 [VIA 8237]
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