Re: Muting only affects audio that is playing

Sorry for the late reply.

On Thu Dec 11, 2025 at 8:23 PM CET, Sean C. Farley wrote:
> Hi Christos,
>
> First, I tested with 14.3-STABLE:  stable/14-n272977-63b77ab1554e
> I now tried with 15.0-STABLE:  stable/15-n281468-224d65015465
>
> Muting still does not work correctly even after removing any sound 
> related settings from /boot/loader.conf and /etc/sysctl.conf just to 
> make sure they were not doing anything.
>
> With hw.snd.verbose=4, I played an MP3 with mpv while the sound was 
> muted.  Here is the information, although, I am not sure if it helps.
>
> sndbuf_remalloc(): b=0xfffff80106608a80 8192 [8192] NOCHANGE
> pcm4: chn_resizebuf(): PCMDIR_PLAY (hardware) timeout=10 b[2048/1024/2] bs[2048/1024/2] limit=0
> sndbuf_remalloc(): b=0xfffff8014cdfd180 0 -> 8192 [8192]
> pcm4: chn_resizebuf(): PCMDIR_PLAY (virtual) timeout=10 b[0/0/0] bs[8192/1024/8] limit=2048
> pcm4: chn_resizebuf(): PCMDIR_PLAY (hardware) timeout=10 b[2048/1024/2] bs[2048/1024/2] limit=0
> pcm4: chn_resizebuf(): PCMDIR_PLAY (virtual) timeout=10 b[0/0/0] bs[8192/1024/8] limit=2048
> pcm4: chn_resizebuf(): PCMDIR_PLAY (hardware) timeout=10 b[2048/1024/2] bs[2048/1024/2] limit=0
> sndbuf_remalloc(): b=0xfffff8014cdfd180 8192 -> 16384 [16384]
> pcm4: chn_resizebuf(): PCMDIR_PLAY (virtual) timeout=10 b[0/0/0] bs[16384/2048/8] limit=4096
> pcm4: chn_resizebuf(): PCMDIR_PLAY (hardware) timeout=10 b[2048/1024/2] bs[2048/1024/2] limit=0
> pcm4: chn_resizebuf(): PCMDIR_PLAY (virtual) timeout=10 b[0/0/0] bs[16384/2048/8] limit=3763
> pcm4: chn_trigger() dsp4.virtual_play.0: calling go=0x00000001 , prev=0x00000000
> pcm4: chn_start(): VCHAN PARENT starting! (PCMDIR_PLAY/running) (ready=2048 force=1 i=1 j=0 intrtimeout=10 latency=10ms)
> pcm4: chn_trigger() dsp4.play.0: calling go=0x00000001 , prev=0xffffffff
> hdac1: 1536Kbps of 46080Kbps bandwidth used
> pcm4: PCMDIR_PLAY: Stream setup fmt=00200010 (2.0) speed=48000
> pcm4: PCMDIR_PLAY: Stream setup nid=2: fmt=0x0011, dfmt=0x0001, chan=0x0010, chan_count=0x01, stripe=0
> pcm4: chn_trigger() dsp4.virtual_play.0: calling go=0xffffffff , prev=0x00000001
> pcm4: chn_trigger() dsp4.play.0: calling go=0xffffffff , prev=0x00000001
> pcm4: chn_resizebuf(): PCMDIR_PLAY (hardware) timeout=10 b[2048/1024/2] bs[2048/1024/2] limit=0
> pcm4: chn_resizebuf(): PCMDIR_PLAY (virtual) timeout=10 b[0/0/0] bs[16384/2048/8] limit=3763
> sndbuf_remalloc(): b=0xfffff80106608a80 8192 [2048] NOCHANGE
> pcm4: chn_resizebuf(): PCMDIR_PLAY (hardware) timeout=42 b[2048/1024/2] bs[8192/1024/8] limit=2048
>
> One odd thing was that running "mixer vol.mute=off" while audio is 
> playing actually muted the sound.  However, pausing and unpausing got it 
> to play anyway.
>
> Sean

That's odd indeed. What is the output of mixer(8) once the sound is
unmuted? Does this happen with other audio devices (if you have any), or
only with this one?

Christos