Re: ALSA bug? Laptop headphone output depending on speaker channel setting

From	Nicholas Geovanis <nickgeovanis@gmail.com>
Newsgroups	linux.debian.user
Subject	Re: ALSA bug? Laptop headphone output depending on speaker channel setting
Date	2020-12-30 02:20 +0100
Message-ID	<BryjD-57h-7@gated-at.bofh.it> (permalink)
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On Tue, Dec 29, 2020, 6:49 PM Brendon Higgins <brendon@quantumfurball.net>
wrote:

> ....
> After some more searching I figured out what the difference was: the
> "Loopback Mixing" setting in alsamixer. It's apparently disabled by
> default, but for some reason mine had migrated to enabled. Enabling it
> seems to dictate that headphone levels are controlled through the
> "Speaker+LO" channel instead of
> the "Headphone" channel. Setting it back to disabled, and things are now
> back to normal. Mystery solved!
>

Well thanks Brendon. That started mysteriously for me a couple years ago
too. But I shrugged and used the CentOS 7 machine where it worked fine. The
CentOS downer was that it required closed drivers for my BMC network chip.
Some days I feel like Papa Bear :-)

Best,
> Brendon
>
>
>

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Thread

ALSA bug? Laptop headphone output depending on speaker channel setting Brendon Higgins <brendon@quantumfurball.net> - 2020-12-24 20:00 +0100
  Re: ALSA bug? Laptop headphone output depending on speaker channel  setting Joel Roth <joelz@pobox.com> - 2020-12-24 22:10 +0100
    Re: Re: ALSA bug? Laptop headphone output depending on speaker channel setting Brendon Higgins <brendon@quantumfurball.net> - 2020-12-25 19:10 +0100
      Re: ALSA bug? Laptop headphone output depending on speaker channel setting Brendon Higgins <brendon@quantumfurball.net> - 2020-12-30 01:50 +0100
        Re: ALSA bug? Laptop headphone output depending on speaker channel setting Nicholas Geovanis <nickgeovanis@gmail.com> - 2020-12-30 02:20 +0100

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