Re: [Gwc-general] 0.21-16 and alsa

[jeff w. <we...@ya...>]

Thanks for the reports.

My experience on Fedore core 14 is that both pulseaudio
and alsa drivers work find regardless whether or not pulseaudio is running.


Here's my experience on Ubuntu 10.04:

Pulseaudio works fine.

Alsa is really strange -- it will open the alsa device, even set parameters
on the device (parameters like audio rate, # channels, etc.)

But when gwc attempts to write audio data to the device, it bombs with
an alsa error of "invalid parameter" generated by the snd_pcm_writei() function
call -- which I have yet to track down.  I am perplexed.

As time allows I'll see if I can track it down further, in the meantime there
is no strong reason not to use the pulseaudio driver, it's just the alsa driver
would be a little more efficient with I/O and the cursor tracking would be 
slightly
better (but probably not enough to make visual difference...)

Cheers,
Jeff



----- Original Message ----
From: Chris Craig <ch...@ci...>
To: gwc...@li...
Sent: Thu, May 12, 2011 4:24:14 AM
Subject: Re: [Gwc-general] 0.21-16 and alsa

On 05/12/2011 06:03 AM, zcx wrote:
> Many thanks for the new release Jeff.  Sadly still can't make it work
> with alsa.
>
> It works fine with aoss and /dev/dsp as the audio device.
>
> Using Ubuntu 10.04 LTS.  Standard pulseaudio and alsa.  Here's the
> alsa configuration...
<snip
> Tried hw:0,0 hw:0,1 hw:0,2 hw:0,3 hw 0,0 hw 0,1 hw 0,2 hw 0,3, but no
> sound playback from gwc.  Just get the Failed to open output device...
> warning.

I can't remember if it's been mentioned, but I use "default:" for the 
audio device and it works fine for me.

-- 
Chris Craig

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