[alsa-devel] ALSA Driver

Darsen Lu darsenlu at gmail.com
Sun Feb 7 15:55:07 CET 2010

Thanks for the reply.

I tried "fuser -v /dev/dsp* /dev/snd/* /dev/seq*" and found out that Adobe
Flash Player was directly controlling /dev/snd/pcmC0D0p.  That is when I
realized I need to create /etc/asound.conf to route ALSA library to
PulseAudio.  The content of asound.conf follows this webpage
https://wiki.ubuntu.com/PulseAudio .


On Sun, Feb 7, 2010 at 5:29 AM, Daniel Chen <seven.steps at gmail.com> wrote:

> On Sun, Feb 7, 2010 at 3:20 AM, Darsen Lu <darsenlu at gmail.com> wrote:
> > After that I started noticing conflicts between different sound-playback
> > applications.
> > For example, if I watch a Flash video on Firefox, stop it, and then start
> > playing an MP3 file on Totem (a Media Player), I don't hear any sound.
> > Once I close Firefox the music from Totem starts coming out.
> > This never happened before on my Linux system. I'd be very grateful if
> > someone could give me advices!
> This symptom is very improbably related to your upgrading of the
> driver. Instead, it's a userspace issue. Use "sudo fuser -v /dev/dsp*
> /dev/snd/* /dev/seq*" when you're experiencing the symptom to start
> troubleshooting.
> Best,
> -Dan

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