[Trac-bugs] [PC-BSD Trac] #255: Duplicate Sound Devices Detected...Sound Not Working

PC-BSD trac at pcbsd.org
Thu Feb 18 09:15:02 PST 2010

#255: Duplicate Sound Devices Detected...Sound Not Working
 Reporter:  fitzlt                    |       Owner:         
     Type:  defect                    |      Status:  new    
 Priority:  major                     |   Milestone:  8.0    
Component:  System Configuration      |     Version:  8.0-RC2
 Keywords:  Sound, Multimedia, Audio  |  

Comment(by kris):

 Looks like its getting confused between the HDMI audio and regular analog:

 pcm0: <HDA Realtek ALC268 PCM #0 Analog> at cad 0 nid 1 on hdac0
 pcm1: <HDA NVidia MCP78 HDMI PCM #0 Digital> at cad 3 nid 1 on hdac0

 If you do "cat /dev/sndstat" can you send the output?

 Also, do you have a separate physical sound-card, or is this an on-board
 card with a nvidia video card?

 If we can't disable one of the devices, we may just need to put something
 in /etc/sysctl.conf:

 (from "man snd")

              Default sound card for systems with multiple sound cards.
              using devfs(5), the default device for /dev/dsp.  Equivalent
 to a
              symlink from /dev/dsp to /dev/dsp${hw.snd.default_unit}.

 So maybe give hw.snd.default_unit="0" a shot in sysctl.conf and reboot.
 Any improvement?

Ticket URL: <https://trac.pcbsd.org/ticket/255#comment:1>
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