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 SPDIF with HD Audio driver for ALC 886 
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Joined: Tue Apr 24, 2018 5:42 am
Posts: 1
Post SPDIF with HD Audio driver for ALC 886
I've been playing with getting digital audio working on the fitlet-i (despite the fitlet-i support page saying it is TBD).

SPDIF Playback is working fine. You have to use electrical 3mm to RCA cables though.

root@renderer:~# aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: Generic [HD-Audio Generic], device 0: ALC886 Analog [ALC886 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: Generic [HD-Audio Generic], device 1: ALC886 Digital [ALC886 Digital]
Subdevices: 1/1
Subdevice #0: subdevice #0


SPDIF Capture is not working though.

root@renderer:~# arecord -l
**** List of CAPTURE Hardware Devices ****
card 0: Generic [HD-Audio Generic], device 0: ALC886 Analog [ALC886 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: Generic [HD-Audio Generic], device 2: ALC886 Alt Analog [ALC886 Alt Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0


Notice that there's no Digital card reported.

Strangely enough when the cables (IN and OUT) are connected:

root@renderer:~# hdajacksensetest
Pin 0x14 (Green Line Out, Rear side): present = Yes
Pin 0x15 (Black Line Out, Rear side): present = No
Pin 0x16 (Orange Line Out, Rear side): present = No
Pin 0x17 (Grey Line Out, Rear side): present = No
Pin 0x18 (Pink Mic, Rear side): present = Yes
Pin 0x19 (Pink Mic, Front side): present = No
Pin 0x1a (Blue Line In, Rear side): present = No
Pin 0x1b (Green Headphone, Front side): present = No
Pin 0x1e (Black SPDIF Out, Rear side): present = No


I can use hdajackretask to re-align pins and get a SPDIF device to present, but still can't get sound captured! I think I set the SPDIF Output to Pin 0x18.

Does anyone have any ideas what to try next to get SPDIF Capture working? Realise the documentation/Wiki says TBD but clearly some part of the sound/card system works - would like to get IN and OUT working so I can run DRC (digital room correction) on this lovely, silent PC!

Aris


Tue Apr 24, 2018 6:33 am
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Joined: Mon Dec 25, 2017 4:21 pm
Posts: 170
Post Re: SPDIF with HD Audio driver for ALC 886
Unfortunately this features requires development and its status is still under TBD.
We hope to get there in the future.


Tue May 01, 2018 7:07 am
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