[PlanetCCRMA] alsamixer step glitch

Mark Knecht mknecht@controlnet.com
Thu Jan 8 07:02:01 2004

> So, I did a Google search on soundfile.wav, and found a bird song file.
> Ran the command:
> # aplay -device="plughw" canary1.wav
> Playing WAVE 'canary1.wav' : Signed 16 bit Little Endian, Rate 44100 Hz,
> Mono
> [root@hunter music]#
> No sound.  In fact, once I messed with the alsamixer, I lost all .wav
> file sounds on entering and exiting apps, closing Gnome, etc.  I shut
> down the computer, waited, started, and still no sound.

Ah....you may have something blocking Alsa. As with most OS's you are only
allowed one sound environment at a time. Since you are apparently using
Gnome, possibly you have Gnome's sound environment still turned on? If so
Alsa will get blocked and produce no sound.

To look for this try a simple command like

lsof | grep sound

and see what's latched onto sound. If you know where to disable Gnome's
sound daemon (is that esound? I'm not sure) then make sure it's turned off.
(I.e. - never started when Gnome is started.)

> How far back should I go, next time I get a block of time (like next
> week)?  I'm thinking I return to the alsaconf step, double check oss
> step, then do alsamixer step again.  Does that make sense?  Any advice
> appreciated.
> Tom

These and the steps above are some ideas...

- Mark