I got a little farther. Found http://alsa.opensrc.org/DigitalOut I think I need to send output to hw=0,1 but it still doesn't work. What am I doing wrong? Steps completed: # # List ALSA playback devices # aplay -l **** List of PLAYBACK Hardware Devices **** card 0: VT82xx [HDA VIA VT82xx], device 0: VT1708 Analog [VT1708 Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 card 0: VT82xx [HDA VIA VT82xx], device 1: VT1708 Digital [VT1708 Digital] Subdevices: 1/1 Subdevice #0: subdevice #0 # # Device Aliases # List Available playback devices. # pico ~ # aplay -L f default:CARD=VT82xx HDA VIA VT82xx, VT1708 Analog Default Audio Device front:CARD=VT82xx,DEV=0 HDA VIA VT82xx, VT1708 Analog Front speakers surround40:CARD=VT82xx,DEV=0 HDA VIA VT82xx, VT1708 Analog 4.0 Surround output to Front and Rear speakers surround41:CARD=VT82xx,DEV=0 HDA VIA VT82xx, VT1708 Analog 4.1 Surround output to Front, Rear and Subwoofer speakers surround50:CARD=VT82xx,DEV=0 HDA VIA VT82xx, VT1708 Analog 5.0 Surround output to Front, Center and Rear speakers surround51:CARD=VT82xx,DEV=0 HDA VIA VT82xx, VT1708 Analog 5.1 Surround output to Front, Center, Rear and Subwoofer speakers surround71:CARD=VT82xx,DEV=0 HDA VIA VT82xx, VT1708 Analog 7.1 Surround output to Front, Center, Side, Rear and Woofer speakers iec958:CARD=VT82xx,DEV=0 HDA VIA VT82xx, VT1708 Digital IEC958 (S/PDIF) Digital Audio Output null Discard all samples (playback) or generate zero samples (capture) # # Find device another way # pico ~ # cat /proc/asound/devices 0: [ 0] : control 1: : sequencer 16: [ 0- 0]: digital audio playback 17: [ 0- 1]: digital audio playback 24: [ 0- 0]: digital audio capture 25: [ 0- 1]: digital audio capture 33: : timer # # TEST digital out with aplay requries a wav file # But test still fails # pico ~ # aplay -d hw:0,1 /music/global_psychedelic_trance_vol_4_ambient_side/amphibia__grey_area.wav mplayer /music/Paul_jaz/Track03.wav -ao alsa:device=hw=0,1 On Thu, 2007-12-13 at 11:50 -0800, John Stile wrote: > I need help to play optical-audio out from a pico-itx px10000g in a > Serener GS-L08 case (which has an optical-audio connector). > > I connected a Klipsch 5:1 system to the pico case via a standard > optic-audio cable. > > Then I tried aplay and play to send sound out the optic port, but have > had no success. > > This is my first optic audio system, so maybe I'm missing something > simple. > > I turned the volume on the Klipsch system up to +25, and in alsamixer > all levels where maxed. > > In alsamixer, I notice there is no volume level change allowed for > IEC958, but there is a volume level bar for the other items (Master F, > PCM, Front, Line, Mic). > > Example of what IEC958 looks like in alsamixer. > ---- > |00| > ---- > IEC958 > > I can play sound through head phones attached to the front rca plug. > > Details below: > #------------------------- > I use the in-kernel snd_hda_intel driver in a 2.6.23-gentoo-r3 kernel, > with the following options. > > Device Drivers ---> > Sound ---> > <*> Sound card support > Advanced Linux Sound Architecture ---> > <M> Advanced Linux Sound Architecture > <M> Sequencer support > < > Sequencer dummy client > <M> OSS Mixer API > <M> OSS PCM (digital audio) API > [*] OSS PCM (digital audio) API - Include plugin system > [*] OSS Sequencer API > <M> RTC Timer support > [*] Use RTC as default sequencer timer > [ ] Dynamic device file minor numbers > [*] Support old ALSA API > [ ] Verbose procfs contents > [ ] Verbose printk > [ ] Debug > Generic devices ---> > PCI devices ---> > <M> Intel HD Audio > <M> VIA 82C686A/B, 8233/8235 AC97 Controller > <M> VIA 82C686A/B, 8233 based Modems > #------------------------- > I tried versions 1.0.14 and 1.0.15 of the following gentoo alsa packages > > media-libs/alsa-lib > media-libs/alsa-oss > media-plugins/alsa-plugins > media-sound/alsa-firmware > media-sound/alsa-headers > media-sound/alsa-tools > media-sound/alsa-utils > media-sound/alsamixergui > #------------------------- > lsmod |grep hda > > snd_hda_intel 216732 0 > snd_pcm 47492 2 snd_pcm_oss,snd_hda_intel > snd 33508 8 > snd_pcm_oss,snd_mixer_oss,snd_seq_oss,snd_seq,snd_seq_device,snd_hda_intel,snd_pcm,snd_timer > snd_page_alloc 10504 2 snd_hda_intel,snd_pcm > #------------------------- > lspci -v > > 80:01.0 Audio device: VIA Technologies, Inc. VIA High Definition Audio > Controller (rev 10) > Subsystem: VIA Technologies, Inc. VIA High Definition Audio > Controller > Flags: bus master, fast devsel, latency 0, IRQ 20 > Memory at 9fffc000 (64-bit, non-prefetchable) [size=16K] > Capabilities: [50] Power Management version 2 > Capabilities: [60] Message Signalled Interrupts: Mask- 64bit+ > Queue=0/0 Enable- > Capabilities: [70] Express Root Complex Integrated Endpoint, MSI > 00 > Capabilities: [100] Virtual Channel <?> > #------------------------- > Alsa mixer shows no volume adjustments for IEC958. > > Card: HDA VIA VT82xx ? > Chip: VIA VIA VT1708 ? > View: [Playback] Capture All ? > Item: IEC958 > > ---- > |00| > ---- > IEC958 > #------------------------- > > > ------------------------------------------------------------------------- > SF.Net email is sponsored by: > Check out the new SourceForge.net Marketplace. > It's the best place to buy or sell services > for just about anything Open Source. > http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace > _______________________________________________ > Alsa-user mailing list > Alsa-user@xxxxxxxxxxxxxxxxxxxxx > https://lists.sourceforge.net/lists/listinfo/alsa-user ------------------------------------------------------------------------- SF.Net email is sponsored by: Check out the new SourceForge.net Marketplace. 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