Audio not working system76 pangolin 12 laptop

greyunix · Monday at 4:05 PM

Hi ,

I opened a thread about having audio and WiFi issues, which has since been moved to networking in the forums, I am receiving help with the WiFi issue, but I thought it best to open a separate issue for audio. I'll link the thread here for reference, but basically audio does not play through the speaker of my system76 pangolin 12 laptop. This is the compatibility wiki checklist showing that audio hasn't worked for this laptop for a while, but I'm hoping to resolve this and possibly get the wiki updated.

this is the release I'm on

Code:

FreeBSD freebsd-one 15.1-RELEASE-p4 FreeBSD 15.1-RELEASE-p4 releng/15.1-n283627-db6066678b33 GENERIC amd64

this is the output of cat /dev/sndstat

Code:

pcm0: <ATI R6xx (HDMI)> (play)
pcm1: <Conexant (0x20d0) (Analog)> (play/rec) default
pcm2: <Conexant (0x20d0) (Left Analog Headphones)> (play)
No devices installed from userspace.

and dmesg | grep hdac

Code:

hdac0: <ATI (0x1640) HDA Controller> mem 0xfcac8000-0xfcacbfff at device 0.1 on pci4
hdac1: <AMD Raven HDA Controller> mem 0xfcac0000-0xfcac7fff at device 0.6 on pci4
hdacc0: <ATI R6xx HDA CODEC> at cad 0 on hdac0
hdaa0: <ATI R6xx Audio Function Group> at nid 1 on hdacc0
hdacc1: <Conexant (0x20d0) HDA CODEC> at cad 0 on hdac1
hdaa1: <Conexant (0x20d0) Audio Function Group> at nid 1 on hdacc1

and following advice from the other thread sysctl dev.hdac.0.pindump=1 (output of dmesg)

Code:

hdaa0: Dumping AFG pins:
hdaa0: nid   0x    as seq device       conn  jack    loc        color   misc
hdaa0:  3 185600f0 15 0  Digital-out   Jack  Digital 0x18       Unknown 0
hdaa0:     Caps:    OUT              Sense: 0x7fffffff (disconnected, ELD valid)
hdaa0:  5 585600f0 15 0  Digital-out   None  Digital 0x18       Unknown 0 DISA
hdaa0:     Caps:    OUT              Sense: 0x7fffffff (disconnected, ELD valid)
hdaa0:  7 585600f0 15 0  Digital-out   None  Digital 0x18       Unknown 0 DISA
hdaa0:     Caps:    OUT              Sense: 0x7fffffff (disconnected, ELD valid)
hdaa0:  9 585600f0 15 0  Digital-out   None  Digital 0x18       Unknown 0 DISA
hdaa0:     Caps:    OUT              Sense: 0x7fffffff (disconnected, ELD valid)
hdaa0: 11 585600f0 15 0  Digital-out   None  Digital 0x18       Unknown 0 DISA
hdaa0:     Caps:    OUT              Sense: 0x7fffffff (disconnected, ELD valid)
hdaa0: NumGPIO=0 NumGPO=0 NumGPI=0 GPIWake=0 GPIUnsol=0

is there any where I can start to debug the issue with the audio ?

thankyou for your assistance and advice.

cracauer@ · Monday at 4:56 PM

First thing tp do is use a player that gives real error messages:

Code:

mplayer -ao oss:/dev/dsp3 01_she-is-my-sin.mp3

Vary dsp3 as required.

greyunix · Monday at 5:54 PM

cracauer@

Code:

freebsd@freebsd-one:~ $ mplayer -ao oss:/dev/dsp1 01\ L-O-V-E.mp3
MPlayer SVN-r38685-snapshot-19.1.7 (C) 2000-2026 MPlayer Team

Playing 01 L-O-V-E.mp3.
libavformat version 63.1.102 (external)
Audio only file format detected.
Clip info:
 Title: L-O-V-E
 Artist: Nat King Cole
 Album: L-O-V-E
 Year: 1992
 Comment:
 Track: 1
 Genre: Unknown
Load subtitles in ./
==========================================================================
Requested audio codec family [mpg123] (afm=mpg123) not available.
Enable it at compilation.
Opening audio decoder: [ffmpeg] FFmpeg/libavcodec audio decoders
libavcodec version 63.1.102 (external)
AUDIO: 48000 Hz, 2 ch, floatle, 320.0 kbit/10.42% (ratio: 40000->384000)
Selected audio codec: [ffmp3float] afm: ffmpeg (FFmpeg MPEG layer-3 audio)
==========================================================================
AO: [oss] 48000Hz 2ch floatle (4 bytes per sample)
Video: no video
Starting playback...
A: 153.8 (02:33.8) of 153.0 (02:33.0)  0.4%


Exiting... (End of file)

mplayer doesn't appear to produce any errors

cracauer@ · Monday at 7:25 PM

Yeah, then you need to wait until somebody comes along who can do the black magic with the pins.

greyunix · Monday at 8:12 PM

cracauer@ said:
Yeah, then you need to wait until somebody comes along who can do the black magic with the pins.

Is there anywhere I can raise a request maybe ?

T-Daemon · Monday at 8:16 PM

greyunix said:
and dmesg | grep hdac

My apologies, this should have been dmesg | grep pcm .

Please post the pindump of hdac.1 sysctl dev.hdac.1.pindump=1

cracauer@ · Monday at 8:17 PM

greyunix said:
Is there anywhere I can raise a request maybe ?

Look through the history here. At least two people know this voodoo. When you identify them send a private message and point to this thread.

greyunix · Monday at 8:56 PM

T-Daemon said:
My apologies, this should have been dmesg | grep pcm .

Please post the pindump of hdac.1 sysctl dev.hdac.1.pindump=1

dmesg | grep pcm

Code:

pcm0: <ATI R6xx (HDMI)> at nid 3 on hdaa0
pcm1: <Conexant (0x20d0) (Analog)> at nid 23 and 25 on hdaa1
pcm2: <Conexant (0x20d0) (Left Analog Headphones)> at nid 22 on hdaa1

sysctl dev.hdac.1.pindump=1

Code:

hdaa1: Dumping AFG pins:
hdaa1: nid   0x    as seq device       conn  jack    loc        color   misc
hdaa1: 22 03211040 4  0  Headphones    Jack  1/8     Left       Black   0
hdaa1:     Caps:    OUT HP EAPD      Sense: 0x00000000 (disconnected)
hdaa1: 23 91170110 1  0  Speaker       Fixed Analog  0x11       Unknown 1
hdaa1:     Caps:    OUT    EAPD     
hdaa1: 24 40f001f0 15 0  Other         None  Unknown 0x00       Unknown 1 DISA
hdaa1:     Caps: IN             VREF Sense: 0x00000000 (disconnected)
hdaa1: 25 03a11030 3  0  Mic           Jack  1/8     Left       Black   0
hdaa1:     Caps: IN             VREF Sense: 0x00000000 (disconnected)
hdaa1: 26 40f001f0 15 0  Other         None  Unknown 0x00       Unknown 1 DISA
hdaa1:     Caps: IN                  Sense: 0x00000000 (disconnected)
hdaa1: 29 40f001f0 15 0  Other         None  Unknown 0x00       Unknown 1 DISA
hdaa1:     Caps:    OUT HP EAPD      Sense: 0x00000000 (disconnected)
hdaa1: 30 40f001f0 15 0  Other         None  Unknown 0x00       Unknown 1 DISA
hdaa1:     Caps: IN                  Sense: 0x00000000 (disconnected)
hdaa1: 31 40f001f0 15 0  Other         None  Unknown 0x00       Unknown 1 DISA
hdaa1:     Caps: IN                 
hdaa1: 33 40f001f0 15 0  Other         None  Unknown 0x00       Unknown 1 DISA
hdaa1:     Caps:    OUT             
hdaa1: 38 40f001f0 15 0  Other         None  Unknown 0x00       Unknown 1 DISA
hdaa1:     Caps:    OUT    EAPD     
hdaa1: 39 40f001f0 15 0  Other         None  Unknown 0x00       Unknown 1 DISA
hdaa1:     Caps: IN                 
hdaa1: NumGPIO=8 NumGPO=0 NumGPI=0 GPIWake=1 GPIUnsol=1
hdaa1:  GPIO0: disabled
hdaa1:  GPIO1: disabled
hdaa1:  GPIO2: disabled
hdaa1:  GPIO3: disabled
hdaa1:  GPIO4: disabled
hdaa1:  GPIO5: disabled
hdaa1:  GPIO6: disabled
hdaa1:  GPIO7: disabled

greyunix · 2026-10-13T14:23:08+0100

I tried with these device hints based on the pindump above with no luck

Code:

hint.hdaa.1.nid23.config="as=1 seq=0 device=Speaker"
hint.hdaa.1.nid22.config="as=1 seq=15 device=Headphones"

no audio through speaker or headphones.

T-Daemon · 2026-10-14T13:19:34+0100

Try beep -D 500 /dev/dsp1, as unprivileged user and root, with and without the device hints. Try also with the headphones plugged in.

Try over headphones: sysctl hw.snd.default_unit=2

If still no sound, perhaps the audio device is not defined in the hda codec [1].

For example, on a ThinkPad the device is identified as "ALC257":

Rich (BB code):

 % dmesg | grep hdac
hdacc1: <Realtek ALC257 HDA CODEC> at cad 0 on hdac1

Rich (BB code):

% devinfo -rv
hdacc1 <Realtek ALC257 HDA CODEC> pnpinfo vendor=0x10ec device=0x0257 revision=0x00 stepping=0x01 at cad=0

See [1], line 571.

On your system76 as "(0x20d0)":

greyunix said:
dmesg | grep hdac

Rich (BB code):

hdacc1: <Conexant (0x20d0) HDA CODEC> at cad 0 on hdac1

Please show us devinfo -rv . The device id of the Conexant audio device is of interest.

[1] sys/dev/sound/pci/hda/hdac.h

Rich (BB code):

    571 #define HDA_CODEC_ALC257        HDA_CODEC_CONSTRUCT(REALTEK, 0x0257)

    787 /* Conexant */
    788 #define CONEXANT_VENDORID       0x14f1
    789 #define HDA_CODEC_CX20549       HDA_CODEC_CONSTRUCT(CONEXANT, 0x5045)
    790 #define HDA_CODEC_CX20551       HDA_CODEC_CONSTRUCT(CONEXANT, 0x5047)
    791 #define HDA_CODEC_CX20561       HDA_CODEC_CONSTRUCT(CONEXANT, 0x5051)
    792 #define HDA_CODEC_CX20582       HDA_CODEC_CONSTRUCT(CONEXANT, 0x5066)
    793 #define HDA_CODEC_CX20583       HDA_CODEC_CONSTRUCT(CONEXANT, 0x5067)
    794 #define HDA_CODEC_CX20584       HDA_CODEC_CONSTRUCT(CONEXANT, 0x5068)
    795 #define HDA_CODEC_CX20585       HDA_CODEC_CONSTRUCT(CONEXANT, 0x5069)
    796 #define HDA_CODEC_CX20588       HDA_CODEC_CONSTRUCT(CONEXANT, 0x506c)
    797 #define HDA_CODEC_CX20590       HDA_CODEC_CONSTRUCT(CONEXANT, 0x506e)
    798 #define HDA_CODEC_CX20631       HDA_CODEC_CONSTRUCT(CONEXANT, 0x5097)
    799 #define HDA_CODEC_CX20632       HDA_CODEC_CONSTRUCT(CONEXANT, 0x5098)
    800 #define HDA_CODEC_CX20641       HDA_CODEC_CONSTRUCT(CONEXANT, 0x50a1)
    801 #define HDA_CODEC_CX20642       HDA_CODEC_CONSTRUCT(CONEXANT, 0x50a2)
    802 #define HDA_CODEC_CX20651       HDA_CODEC_CONSTRUCT(CONEXANT, 0x50ab)
    803 #define HDA_CODEC_CX20652       HDA_CODEC_CONSTRUCT(CONEXANT, 0x50ac)
    804 #define HDA_CODEC_CX20664       HDA_CODEC_CONSTRUCT(CONEXANT, 0x50b8)
    805 #define HDA_CODEC_CX20665       HDA_CODEC_CONSTRUCT(CONEXANT, 0x50b9)
    806 #define HDA_CODEC_CX21722       HDA_CODEC_CONSTRUCT(CONEXANT, 0x50f1)
    807 #define HDA_CODEC_CX20722       HDA_CODEC_CONSTRUCT(CONEXANT, 0x50f2)
    808 #define HDA_CODEC_CX21724       HDA_CODEC_CONSTRUCT(CONEXANT, 0x50f3)
    809 #define HDA_CODEC_CX20724       HDA_CODEC_CONSTRUCT(CONEXANT, 0x50f4)
    810 #define HDA_CODEC_CX20751       HDA_CODEC_CONSTRUCT(CONEXANT, 0x510f)
    811 #define HDA_CODEC_CX20751_2     HDA_CODEC_CONSTRUCT(CONEXANT, 0x5110)
    812 #define HDA_CODEC_CX20753       HDA_CODEC_CONSTRUCT(CONEXANT, 0x5111)
    813 #define HDA_CODEC_CX20755       HDA_CODEC_CONSTRUCT(CONEXANT, 0x5113)
    814 #define HDA_CODEC_CX20756       HDA_CODEC_CONSTRUCT(CONEXANT, 0x5114)
    815 #define HDA_CODEC_CX20757       HDA_CODEC_CONSTRUCT(CONEXANT, 0x5115)
    816 #define HDA_CODEC_CX20952       HDA_CODEC_CONSTRUCT(CONEXANT, 0x51d7)
    817 #define HDA_CODEC_CXXXXX        HDA_CODEC_CONSTRUCT(CONEXANT, 0xffff)