Bug 92753

Summary:	Audinst HUD-mx2 autodetected incorrectly
Product:	PulseAudio	Reporter:	Alex B <alex.teorver>
Component:	modules	Assignee:	pulseaudio-bugs
Status:	RESOLVED MOVED	QA Contact:	pulseaudio-bugs
Severity:	normal
Priority:	medium	CC:	alexander, lennart
Version:	unspecified
Hardware:	x86-64 (AMD64)
OS:	Linux (All)
Whiteboard:
i915 platform:		i915 features:

Description Alex B 2015-10-31 11:39:36 UTC

For some reason it is two devices

aplay -l:
card 2: HUDmx2 [Audinst HUD-mx2], device 0: USB Audio [USB Audio]
  Subdevices: 0/1
  Subdevice #0: subdevice #0
card 2: HUDmx2 [Audinst HUD-mx2], device 1: USB Audio [USB Audio #1]
  Subdevices: 1/1
  Subdevice #0: subdevice #0


"device 1" should be used to play sound, but PulseAudio detects only "device 0".

Loading module manually helps and everything works fine:
pacmd load-module module-alsa-sink device=hw:2,1

ArchLinux, Linux 4.2.5, systemd 227, pulseaudio 7.1

As far as I know it is not regression and device never was autodetected correctly.

lsusb output:
"Bus 005 Device 006: ID 040d:340f VIA Technologies, Inc. "

Comment 1 Raymond 2015-10-31 15:42:55 UTC

https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/commit/sound/usb?id=5ee20bc792467d7d612157e0a9962765aa943b08

Comment 2 Alex B 2015-10-31 18:17:20 UTC

(In reply to Raymond from comment #1)
> https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/commit/sound/
> usb?id=5ee20bc792467d7d612157e0a9962765aa943b08

Does not help. Also commit message explicitly says that cards without capture streams should be unaffected by this change.

Comment 3 Alex B 2015-10-31 18:19:07 UTC

Using this profile seems fix issue for me:

[General]
auto-profiles = yes

[Mapping analog-stereo]
device-strings = front:%f hw:%f,1,0
channel-map = left,right
paths-output = analog-output
priority = 10

Not sure if it is best solution.

Comment 4 Raymond 2015-11-01 11:36:35 UTC

http://git.alsa-project.org/?p=alsa-lib.git;a=blob;f=src/conf/cards/USB-Audio.conf;hb=HEAD

Comment 5 Alex B 2015-11-02 19:04:02 UTC

(In reply to Raymond from comment #4)
> http://git.alsa-project.org/?p=alsa-lib.git;a=blob;f=src/conf/cards/USB-
> Audio.conf;hb=HEAD

Yep. Seems it is right place. Syntax is too obscure though.
Will try to figure something.

Comment 6 Alexander Tsoy 2017-08-11 12:39:41 UTC

I've sent a patch for the kernel driver:
http://mailman.alsa-project.org/pipermail/alsa-devel/2017-August/123802.html

Comment 7 GitLab Migration User 2018-07-30 09:54:30 UTC

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