Sunday, September 26, 2021

Re: no sound on built-in speaker with azalia(4) / Realtek ALC256 on Intel 500 Series

On Sun, Sep 26, 2021 at 01:59:21PM +0200, Stefan Hagen wrote:

Hi Stefan,

thanks for the reply and the pointer towards sof.

> > am trying to figure out why on this laptop no sound through the speakers
> > is played. The speaker are functioning on a dual-booted linux (so
> > technically they're wired ;)
> > Sound is playing through the headphone jack just fine.
> Modern laptops come with these smart sound technology chips. They need a
> firmware and a driver which loads it. This has been done for Linux. In
> OpenBSD we don't have such a driver and currently nobody has considered
> the internal microphone as important enough to write one.

You mention the internal microphone: the mic actually does work.
Via 'aucat -o /tmp/file.wav' I can record from the mic just fine (and
also listen to the playback via the headphone jack).
Simply the speakers (eg. whats behind outputs.spkr_source=dac-2:3O)
stay silent.


felix

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