[alsa-devel] [usb-audio] VIA/Audinst HUD-mx2: One of two PCM device is available for playback

[Takashi Sakamoto]

Hi,

This sound card has two PCM devices. If the sound card is realized "card
0", there are "hw:0,0" and "hw:0,1". But former seems not to generate
sound and latter seems to generate.

This issue is reported to Ubuntu-jp and LinuxMint forum. The reporter
said this happens in Fedora18 so I think this does not depends on these
desktop invironment.
https://forums.ubuntulinux.jp/viewtopic.php?pid=98940#p98940
http://forums.linuxmint.com/viewtopic.php?f=49&t=128478

Please see attached lsusb.log to know usb information and alsainfo.sh in
detail.

Audinst HUD-mx2 applies VIA Technologies chip internally.
http://www.audinst.com/en/bbs/board.php?bo_table=HUDmx2&wr_id=4

The sound card has a lamp which turn on when data comes. When "hw:0,0"
is used, the lamp turns on but no sound. When "hw:0,1" is used, the lamp
turns on and sound.

My question is:
1. does hw:0,0 seem to be available when some control are changed?
2. are there some ways to use hw:0,1 as a default?

Regards


Takashi Sakamoto
o-takashi at sakamocchi.jp
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