[pulseaudio-discuss] [PATCH] alsa: don't assume that hw:x is an analog output

Arun Raghavan arun at arunraghavan.net
Wed Apr 26 08:49:22 UTC 2017

On Mon, 24 Apr 2017, at 08:36 PM, Tanu Kaskinen wrote:
> Previously, if front:x didn't work, we would try to use hw:x for analog
> stereo output. There's no guarantee that hw:x is an analog output,
> however. For example, the Intel HDMI LPE driver uses hw:x for HDMI
> output, and PulseAudio incorrectly created analog profiles for that
> card, because front:x doesn't work but hw:x does.
> This patch changes things so that the analog stereo mapping doesn't any
> more use hw:x as a fallback. A separate "unknown stereo" fallback
> mapping is added to handle the rare case where hw:x is the only PCM
> device that works.
> BugLink: https://bugs.freedesktop.org/show_bug.cgi?id=100488
> ---

I recall that front: actually adds a softvol on top of hw: (in some
cases?), and we actually wanted to move to hw: always.

Do we know if that's still true?

-- Arun

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