2015-05-08 21:58 GMT+08:00 Todd Dailey todd@todddailey.ca:
https://bugtrack.alsa-project.org/alsa-bug does not work so following instructions to post bug here.
Linux 4. Mac Pro 2009. ACL889A codec.
No sound from headphone port. Seems to detect plug / unplug OK.
Works OK when machine booted to OS X or Windows 7.
Have found several bug repors on similar issues with Mac laptops but no fixes.
Have written e-mail with David Henningsson on problem but unable to find a solution.
ALSA-info output:
http://www.alsa-project.org/db/?f=1dc7146eb34af5ad307d029868f775fac5e2764e
Do your macpro spec support 5.1 ?
Simple mixer control 'Channel Mode',0 Capabilities: enum Items: '2ch' '4ch' '6ch' Item0: '2ch'
Pin default seem incorrect
1) Headphone at ext Rear 2) Line Out does not support jack detection 3) Mic jack ????
/sys/class/sound/hwC0D0/init_pin_configs: 0x14 0x01010150 0x15 0x400000f0 0x16 0x400000f0 0x17 0x400000f0 0x18 0x01a19070 0x19 0x01214040 0x1a 0x01813010 0x1b 0x90100130 0x1c 0x400000f0 0x1d 0x400000f0 0x1e 0x0145e160 0x1f 0x01c5e120
/sys/class/sound/hwC0D0/driver_pin_configs:
[ 4.057250] sound hdaudioC0D0: ALC889A: SKU not ready 0x400000f0 [ 4.057633] sound hdaudioC0D0: autoconfig for ALC889A: line_outs=1 (0x14/0x0/0x0/0x0/0x0) type:line [ 4.057636] sound hdaudioC0D0: speaker_outs=1 (0x1b/0x0/0x0/0x0/0x0) [ 4.057638] sound hdaudioC0D0: hp_outs=1 (0x19/0x0/0x0/0x0/0x0) [ 4.057639] sound hdaudioC0D0: mono: mono_out=0x0 [ 4.057641] sound hdaudioC0D0: dig-out=0x1e/0x0 [ 4.057642] sound hdaudioC0D0: inputs: [ 4.057645] sound hdaudioC0D0: Mic=0x18 [ 4.057646] sound hdaudioC0D0: Line=0x1a [ 4.057648] sound hdaudioC0D0: dig-in=0x1f