Re: 2013 Macbook Pro, sound OK in headphones but no sound in internal speakers

From: Johannes Lundberg <johalun0_at_gmail.com>
Date: Fri, 28 Apr 2017 14:59:22 +0200
Hi Hans

Thanks for the tip.. However I'm not sure what to do with it.. My
configuration seems different.

The hda code talks about model and codecs, how does that match to chip and
card ids?

For example, we have:
#define HDA_INTEL_MACBOOKPRO92    HDA_MODEL_CONSTRUCT(INTEL, 0x7270)
and
#define HDA_INTEL_HSW3        HDA_MODEL_CONSTRUCT(INTEL, 0x0d0c)

Both match depending if you look at card or chip..

hdac0_at_pci0:0:3:0:    class=0x040300 card=0x012e106b chip=0x0d0c8086
rev=0x08 hdr=0x00
    vendor     = 'Intel Corporation'
    device     = 'Crystal Well HD Audio Controller'
    class      = multimedia
    subclass   = HDA
hdac1_at_pci0:0:27:0:    class=0x040300 card=0x72708086 chip=0x8c208086
rev=0x05 hdr=0x00
    vendor     = 'Intel Corporation'
    device     = '8 Series/C220 Series Chipset High Definition Audio
Controller'
    class      = multimedia
    subclass   = HDA


On Fri, Apr 28, 2017 at 1:35 PM, Hans Petter Selasky <hps_at_selasky.org>
wrote:

> On 04/28/17 13:30, Johannes Lundberg wrote:
>
>> Hi
>>
>> As the subject says...
>>
>> Anyone familiar with this?
>>
>> # cat /dev/random > /dev/dsp*
>> only generate noise in the headphones..
>>
>>
> MBP requires some patches for the speakers to work:
>
> https://svnweb.freebsd.org/base?view=revision&revision=261507
>
> --HPS
>
Received on Fri Apr 28 2017 - 10:59:25 UTC

This archive was generated by hypermail 2.4.0 : Wed May 19 2021 - 11:41:11 UTC