Re: No sound from Mac Pro headphone port

Todd Dailey
2015-05-08T14:48:18Z

Bingo: the pin-outs are very incorrect.

This is the (original) tech specs of the machine.

https://support.apple.com/kb/SP506?viewlocale=en_US&locale=en_US

Note:

1 x internal speaker
1 x FRONT headphone port
1 x REAR line out port
1 x REAR line in port
1 x REAR optical TOSLINK out port
1 x REAR optical TOSLINK in port

The machine does not have a built-in mic port.

--
TD
todd@todddailey.ca

On 08/05/15 10:36 AM, Raymond Yau wrote:
>
>
> 2015-05-08 21:58 GMT+08:00 Todd Dailey <todd@todddailey.ca
> <mailto: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
>