> i forgot which chip type exactly you're using.
> if it's not a VIA8233A (i.e. 8233 or 8235), this might be a bad
> support of direct-sound (DXS) channels.
> please try the second PCM device once. it's hw:0,1 for ALSA native
> apps and /dev/adsp for OSS apps.
>
>
> Takashi
Ahem. Well, I figured out the problem and it was PEBKAC (Problem
Exists Between Keyboard And Chair). So, here is the deal with the
snd-via82xx driver on my platform:
1) The "master" and "master mono" volume controls do nothing
2) The "surround" channel had to be unmuted.
Yes, that's right, the "surround" channel was muted and it was
changing this that made sound "magically" start coming from my on-board
sound. Yes, I feel pretty stupid for not thinking of this sooner,
considering the hours I have spent trying to figure out what was wrong.
On a second note, the sound was plain awful for the MP3 playback
I tried; there was a nasty high pitched noise noticeable on high
frequency sounds. I switched over to using /dev/adsp as suggested
and the noise went away. Now it sounds great!
Thanks everyone for putting up with my posts :)
-poul
Specs:
Asus A7V8X-X MB
Stereo connected to green output plug
alsa 0.9.4
kernel 2.4.21
RedHat 9
Command I used to verify sound is working...
mpg321 -o oss --audiodevice /dev/adsp myfile.mp3
alsactl:
state.8235 {
control.1 {
comment.access 'read write'
comment.type BOOLEAN
iface MIXER
name 'Master Playback Switch'
value false
}
control.2 {
comment.access 'read write'
comment.type INTEGER
comment.range '0 - 31'
iface MIXER
name 'Master Playback Volume'
value.0 0
value.1 0
}
control.3 {
comment.access 'read write'
comment.type BOOLEAN
iface MIXER
name 'Center Playback Switch'
value false
}
control.4 {
comment.access 'read write'
comment.type INTEGER
comment.range '0 - 31'
iface MIXER
name 'Center Playback Volume'
value 0
}
control.5 {
comment.access 'read write'
comment.type BOOLEAN
iface MIXER
name 'LFE Playback Switch'
value false
}
control.6 {
comment.access 'read write'
comment.type INTEGER
comment.range '0 - 31'
iface MIXER
name 'LFE Playback Volume'
value 0
}
control.7 {
comment.access 'read write'
comment.type BOOLEAN
iface MIXER
name 'Surround Playback Switch'
value.0 true
value.1 true
}
control.8 {
comment.access 'read write'
comment.type INTEGER
comment.range '0 - 31'
iface MIXER
name 'Surround Playback Volume'
value.0 28
value.1 28
}
control.9 {
comment.access 'read write'
comment.type BOOLEAN
iface MIXER
name 'Headphone Playback Switch'
value false
}
control.10 {
comment.access 'read write'
comment.type INTEGER
comment.range '0 - 31'
iface MIXER
name 'Headphone Playback Volume'
value.0 0
value.1 0
}
control.11 {
comment.access 'read write'
comment.type BOOLEAN
iface MIXER
name 'Master Mono Playback Switch'
value false
}
control.12 {
comment.access 'read write'
comment.type INTEGER
comment.range '0 - 31'
iface MIXER
name 'Master Mono Playback Volume'
value 0
}
control.13 {
comment.access 'read write'
comment.type BOOLEAN
iface MIXER
name 'Phone Playback Switch'
value false
}
control.14 {
comment.access 'read write'
comment.type INTEGER
comment.range '0 - 31'
iface MIXER
name 'Phone Playback Volume'
value 0
}
control.15 {
comment.access 'read write'
comment.type BOOLEAN
iface MIXER
name 'Mic Playback Switch'
value false
}
control.16 {
comment.access 'read write'
comment.type INTEGER
comment.range '0 - 31'
iface MIXER
name 'Mic Playback Volume'
value 0
}
control.17 {
comment.access 'read write'
comment.type BOOLEAN
iface MIXER
name 'Mic Boost (+20dB)'
value false
}
control.18 {
comment.access 'read write'
comment.type BOOLEAN
iface MIXER
name 'Line Playback Switch'
value true
}
control.19 {
comment.access 'read write'
comment.type INTEGER
comment.range '0 - 31'
iface MIXER
name 'Line Playback Volume'
value.0 0
value.1 0
}
control.20 {
comment.access 'read write'
comment.type BOOLEAN
iface MIXER
name 'CD Playback Switch'
value false
}
control.21 {
comment.access 'read write'
comment.type INTEGER
comment.range '0 - 31'
iface MIXER
name 'CD Playback Volume'
value.0 0
value.1 0
}
control.22 {
comment.access 'read write'
comment.type BOOLEAN
iface MIXER
name 'Aux Playback Switch'
value false
}
control.23 {
comment.access 'read write'
comment.type INTEGER
comment.range '0 - 31'
iface MIXER
name 'Aux Playback Volume'
value.0 0
value.1 0
}
control.24 {
comment.access 'read write'
comment.type BOOLEAN
iface MIXER
name 'PCM Playback Switch'
value true
}
control.25 {
comment.access 'read write'
comment.type INTEGER
comment.range '0 - 31'
iface MIXER
name 'PCM Playback Volume'
value.0 28
value.1 28
}
control.26 {
comment.access 'read write'
comment.type ENUMERATED
comment.item.0 Mic
comment.item.1 CD
comment.item.2 Video
comment.item.3 Aux
comment.item.4 Line
comment.item.5 Mix
comment.item.6 'Mix Mono'
comment.item.7 Phone
iface MIXER
name 'Capture Source'
value.0 Line
value.1 Line
}
control.27 {
comment.access 'read write'
comment.type BOOLEAN
iface MIXER
name 'Capture Switch'
value true
}
control.28 {
comment.access 'read write'
comment.type INTEGER
comment.range '0 - 15'
iface MIXER
name 'Capture Volume'
value.0 0
value.1 0
}
control.29 {
comment.access 'read write'
comment.type ENUMERATED
comment.item.0 Mic1
comment.item.1 Mic2
iface MIXER
name 'Mic Select'
value Mic1
}
control.30 {
comment.access read
comment.type IEC958
iface MIXER
name 'IEC958 Playback Con Mask'
value
'0fff000f00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000'
}
control.31 {
comment.access read
comment.type IEC958
iface MIXER
name 'IEC958 Playback Pro Mask'
value
cf00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
}
control.32 {
comment.access 'read write'
comment.type IEC958
iface MIXER
name 'IEC958 Playback Default'
value
'0082000200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000'
}
control.33 {
comment.access 'read write'
comment.type BOOLEAN
iface MIXER
name 'IEC958 Playback Switch'
value true
}
control.34 {
comment.access 'read write'
comment.type INTEGER
comment.range '0 - 3'
iface MIXER
name 'IEC958 Playback AC97-SPSA'
value 0
}
control.35 {
comment.access 'read write'
comment.type ENUMERATED
comment.item.0 AC-Link
comment.item.1 'A/D Converter'
iface MIXER
name 'IEC958 Playback Source'
value AC-Link
}
control.36 {
comment.access 'read write'
comment.type BOOLEAN
iface MIXER
name 'External Amplifier Power Down'
value false
}
control.37 {
comment.access 'read write'
comment.type ENUMERATED
comment.item.0 Line
comment.item.1 Mic
iface MIXER
name 'Input Source Select'
value Line
}
control.38 {
comment.access 'read write'
comment.type ENUMERATED
comment.item.0 Line
comment.item.1 Mic
iface MIXER
name 'Input Source Select'
index 1
value Line
}
control.39 {
comment.access 'read write'
comment.type BOOLEAN
iface MIXER
name 'IEC958 Output Switch'
value false
}
control.40 {
comment.access 'read write'
comment.type INTEGER
comment.range '0 - 255'
iface MIXER
name 'VIA DXS Playback Volume'
value.0 0
value.1 0
}
control.41 {
comment.access 'read write'
comment.type INTEGER
comment.range '0 - 255'
iface MIXER
name 'VIA DXS Playback Volume'
index 1
value.0 0
value.1 0
}
control.42 {
comment.access 'read write'
comment.type INTEGER
comment.range '0 - 255'
iface MIXER
name 'VIA DXS Playback Volume'
index 2
value.0 0
value.1 0
}
control.43 {
comment.access 'read write'
comment.type INTEGER
comment.range '0 - 255'
iface MIXER
name 'VIA DXS Playback Volume'
index 3
value.0 0
value.1 0
}
}
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