SPDIF with HD Audio driver for ALC 886

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siraaris
Posts: 1
Joined: Tue Apr 24, 2018 5:42 am

SPDIF with HD Audio driver for ALC 886

Post by siraaris »

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

tamir
Site Admin
Posts: 419
Joined: Mon Dec 25, 2017 4:21 pm

Re: SPDIF with HD Audio driver for ALC 886

Post by tamir »

Unfortunately this features requires development and its status is still under TBD.
We hope to get there in the future.

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