Hi folks (apologies if this appears more than once)
I'm trying to get good quality sound from the Via EPIA motherboards.
The analog output is OK with the 0.9rc2 driver, but I can't see how to
enable the SPDIF output.
----------------------------------------------------------------------------
aplay -l reports
card 0: card0 [VIA 82C686A/B], device 0: VIA 82C686A [VIA 82C686A]
Subdevices: 1/1
Subdevice #0: subdevice #0
----------------------------------------------------------------------------
/proc/asound/card0/ac97#0
0-0/0: 0x56494161 VIA
Capabilities : -headphone out-
DAC resolution : 18-bit
ADC resolution : 18-bit
3D enhancement : Reserved 27
Current setup
Mic gain : +0dB [+0dB]
POP path : pre 3D
Sim. stereo : off
3D enhancement : off
Loudness : off
Mono output : MIX
Mic select : Mic1
ADC/DAC loopback : off
Extended ID : codec=0 rev=0 AMAP DSA=0 SPDIF VRA
Extended status : SPDIF=res SPDIF VRA
PCM front DAC : 44100Hz
PCM ADC : 48000Hz
SPDIF Control : Consumer PCM Category=0x22 Generation=1 Rate=48kHz
----------------------------------------------------------------------------
amixer reports
Simple mixer control 'Master',0
Capabilities: pvolume pswitch pswitch-joined
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Front Left: Playback 23 [74%] [on]
Front Right: Playback 23 [74%] [on]
Simple mixer control 'Master Mono',0
Capabilities: pvolume pvolume-joined pswitch pswitch-joined
Playback channels: Mono
Limits: Playback 0 - 31
Mono: Playback 0 [0%] [off]
Simple mixer control 'Headphone',0
Capabilities: pvolume pswitch pswitch-joined
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Front Left: Playback 0 [0%] [off]
Front Right: Playback 0 [0%] [off]
Simple mixer control '3D Control - Center',0
Capabilities: volume volume-joined
Playback channels: Mono
Limits: 0 - 15
Mono: 0 [0%]
Simple mixer control '3D Control - Depth',0
Capabilities: volume volume-joined
Playback channels: Mono
Limits: 0 - 15
Mono: 0 [0%]
Simple mixer control '3D Control - Switch',0
Capabilities: pswitch pswitch-joined
Playback channels: Mono
Mono: Playback [off]
Simple mixer control 'PCM',0
Capabilities: pvolume pswitch pswitch-joined
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Front Left: Playback 21 [68%] [on]
Front Right: Playback 21 [68%] [on]
Simple mixer control 'Line',0
Capabilities: pvolume pswitch pswitch-joined cswitch cswitch-joined
cswitch-exclusive
Capture exclusive group: 0
Playback channels: Front Left - Front Right
Capture channels: Front Left - Front Right
Limits: Playback 0 - 31
Front Left: Playback 0 [0%] [off] Capture [off]
Front Right: Playback 0 [0%] [off] Capture [off]
Simple mixer control 'CD',0
Capabilities: pvolume pswitch pswitch-joined cswitch cswitch-joined
cswitch-exclusive
Capture exclusive group: 0
Playback channels: Front Left - Front Right
Capture channels: Front Left - Front Right
Limits: Playback 0 - 31
Front Left: Playback 0 [0%] [off] Capture [off]
Front Right: Playback 0 [0%] [off] Capture [off]
Simple mixer control 'Mic',0
Capabilities: pvolume pvolume-joined pswitch pswitch-joined cswitch
cswitch-joined cswitch-exclusive
Capture exclusive group: 0
Playback channels: Mono
Capture channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono: Playback 0 [0%] [off]
Front Left: Capture [on]
Front Right: Capture [on]
Simple mixer control 'Mic Boost (+20dB)',0
Capabilities: pswitch pswitch-joined
Playback channels: Mono
Mono: Playback [off]
Simple mixer control 'Video',0
Capabilities: pvolume pswitch pswitch-joined cswitch cswitch-joined
cswitch-exclusive
Capture exclusive group: 0
Playback channels: Front Left - Front Right
Capture channels: Front Left - Front Right
Limits: Playback 0 - 31
Front Left: Playback 0 [0%] [off] Capture [off]
Front Right: Playback 0 [0%] [off] Capture [off]
Simple mixer control 'Phone',0
Capabilities: pvolume pvolume-joined pswitch pswitch-joined cswitch
cswitch-joined cswitch-exclusive
Capture exclusive group: 0
Playback channels: Mono
Capture channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono: Playback 0 [0%] [off]
Front Left: Capture [off]
Front Right: Capture [off]
Simple mixer control 'IEC958',0
Capabilities: pswitch pswitch-joined
Playback channels: Mono
Mono: Playback [on]
Simple mixer control 'IEC958 Playback AC97-SPSA',0
Capabilities: volume volume-joined
Playback channels: Mono
Limits: 0 - 3
Mono: 3 [100%]
Simple mixer control 'PC Speaker',0
Capabilities: pvolume pvolume-joined pswitch pswitch-joined
Playback channels: Mono
Limits: Playback 0 - 15
Mono: Playback 0 [0%] [off]
Simple mixer control 'Aux',0
Capabilities: pvolume pswitch pswitch-joined cswitch cswitch-joined
cswitch-exclusive
Capture exclusive group: 0
Playback channels: Front Left - Front Right
Capture channels: Front Left - Front Right
Limits: Playback 0 - 31
Front Left: Playback 0 [0%] [off] Capture [off]
Front Right: Playback 0 [0%] [off] Capture [off]
Simple mixer control 'Capture',0
Capabilities: cvolume cswitch cswitch-joined
Capture channels: Front Left - Front Right
Limits: Capture 0 - 15
Front Left: Capture 0 [0%] [on]
Front Right: Capture 0 [0%] [on]
Simple mixer control 'Mix',0
Capabilities: cswitch cswitch-joined cswitch-exclusive
Capture exclusive group: 0
Capture channels: Front Left - Front Right
Front Left: Capture [off]
Front Right: Capture [off]
Simple mixer control 'Mix Mono',0
Capabilities: cswitch cswitch-joined cswitch-exclusive
Capture exclusive group: 0
Capture channels: Front Left - Front Right
Front Left: Capture [off]
Front Right: Capture [off]
Simple mixer control 'External Amplifier Power Down',0
Capabilities: pswitch pswitch-joined
Playback channels: Mono
Mono: Playback [on]
----------------------------------------------------------------------------
alsamixer shows a control for IEC958 (mute/unmute?) and a 4 step control
for IEC958 Playback AC97-SPSA
I've tried lots have things and searched the archives but now I'm
looking for more ideas.
Thanks in advance
John
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