dsp4.0 silent dsp4.>1 works

[Stanislav Antic]

Sound plays with some quirks from Chrome browser
(http://www.quirksmode.org/html5/tests/video.html). If sound don't
work I click somewhere in progress bar. I guess then it switches to
some other channel, not 4.0.

VLC and mplayer don't play sound, they only play it if I start one
instance of mplayer/VLC and after that another one, so second one
takes second channel.

All channels above dsp4.0 works.

Does someone have idea what is happening here. I tried to find similar
problem on internet without success?

This are some maybe relevant data:
% uname -a
FreeBSD nordix 9.1-RELEASE FreeBSD 9.1-RELEASE #0 r243825: Tue Dec  4
09:23:10 UTC 2012
root at farrell.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC  amd64

% cat /dev/sndstat
FreeBSD Audio Driver (newpcm: 64bit 2009061500/amd64)
Installed devices:
pcm0: <NVIDIA (0x0014) (HDMI/DP 8ch)> (play)
pcm1: <NVIDIA (0x0014) (HDMI/DP 8ch)> (play)
pcm2: <NVIDIA (0x0014) (HDMI/DP 8ch)> (play)
pcm3: <NVIDIA (0x0014) (HDMI/DP 8ch)> (play)
pcm4: <VIA VT1818S (Analog 2.0+HP/2.0)> (play/rec) default
pcm5: <VIA VT1818S (HDMI)> (play)
pcm6: <VIA VT1818S (Rear-panel Digital)> (play

% mixer
Mixer vol      is currently set to  78:78
Mixer pcm      is currently set to  83:83
Mixer speaker  is currently set to  80:80
Mixer line     is currently set to  58:58
Mixer mic      is currently set to 100:100
Mixer rec      is currently set to  35:35
Mixer igain    is currently set to  75:75
Mixer ogain    is currently set to 100:100
Mixer monitor  is currently set to 100:100
Recording source: mic

% dmesg|grep pcm
pcm0: <NVIDIA (0x0014) (HDMI/DP 8ch)> at nid 5 on hdaa0
pcm1: <NVIDIA (0x0014) (HDMI/DP 8ch)> at nid 5 on hdaa1
pcm2: <NVIDIA (0x0014) (HDMI/DP 8ch)> at nid 5 on hdaa2
pcm3: <NVIDIA (0x0014) (HDMI/DP 8ch)> at nid 5 on hdaa3
pcm4: <VIA VT1818S (Analog 2.0+HP/2.0)> at nid 28,29 and 26,30,27 on hdaa4
pcm5: <VIA VT1818S (HDMI)> at nid 32 on hdaa4
pcm6: <VIA VT1818S (Rear-panel Digital)> at nid 33 on hdaa4

--
Stanislav Antic