Hello,
I have a PC with an ASUS M4A78-AM motherboard with integrated VT1708S
6-channel sound chip in it. However, I can't get the surround sound
working. The motherboard has 3 jacks on it - green for front / 2 speaker
set; blue is the line in or the rear-speaker out in 4.1 configuration, and
pink is the microphone or side speaker out in the 6-spk configuration.
My speaker configuration is 4.1 [2 front, 2 back and subwoofer]. Line in
does not produce any sound.
Speakers are connected properly. I have tried all possible configurations
of alsamixer and the rear speakers connected to either the blue or pink
jack, but it just doesn't work.
I have also tried many configurations in /etc/asound.conf or ~/.asoundrc.
In alsamixer, there is a control named "smart 5.1", turning it on or off
does not change anything. I have tried aplay to play some wav file using
-Dsurround40, but it does not work:
Playing raw data 'stdin' : Unsigned 8 bit, Rate 8000 Hz, Mono
aplay: set_params:990: Sample format non available
Available formats:
- S16_LE
- S32_LE
[kbs1@localhost ~]$ aplay -L
null
Discard all samples (playback) or generate zero samples (capture)
default:CARD=SB
HDA ATI SB, VT1708S Analog
Default Audio Device
front:CARD=SB,DEV=0
HDA ATI SB, VT1708S Analog
Front speakers
surround40:CARD=SB,DEV=0
HDA ATI SB, VT1708S Analog
4.0 Surround output to Front and Rear speakers
surround41:CARD=SB,DEV=0
HDA ATI SB, VT1708S Analog
4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=SB,DEV=0
HDA ATI SB, VT1708S Analog
5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=SB,DEV=0
HDA ATI SB, VT1708S Analog
5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=SB,DEV=0
HDA ATI SB, VT1708S Analog
7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
iec958:CARD=SB,DEV=0
HDA ATI SB, VT1708S Digital
IEC958 (S/PDIF) Digital Audio Output
[kbs1@localhost ~]$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: SB [HDA ATI SB], device 0: VT1708S Analog [VT1708S Analog]
Subdevices: 2/2
Subdevice #0: subdevice #0
Subdevice #1: subdevice #1
card 0: SB [HDA ATI SB], device 1: VT1708S Digital [VT1708S Digital]
Subdevices: 1/1
Subdevice #0: subdevice #0
*****alsa-info*****
http://www.alsa-project.org/db/?f=3b5a5666691af5c69bedda9ea8836844c0d0b693
I am using alsa 1.0.22.1. I have uninstalled and then reinstalled
pulseaudio sound server, so that it is not the default one and I get all
the controls in alsamixer (not just "volume" control). Surround sound did
not work out-of-the-box on fedora 12, and I never got it to work. Any help
would be greatly appreciated.
Best Regards
Viliam Kubis
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