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Re: ALSA: no sound, no error!

> In gentoo
> linux, everything seems to be working fine as far as I can tell,
> except no sound comes out.  cat /dev/urandom > /dev/dsp makes no
> sound.
> [...]
> alsamixer:
> PCM and Front, Front Mi, Surround, Center, LFE are all up and unmuted.
>  There is no Master volume.  Line, Mic, Headphon are all muted and
> down.

Some laptop sound chips require Headphone to be unmuted and / or a
switch called "external amplifier" to be on to actually produce sound.

If the chip can do digital out (even if there's no connector on the
laptop), try turning it off. I think the mixer switch is called


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