Re: kern/52912: hdafg: no sound from jack port on a laptop

[Jake Slazenger <jake.slazenger%yandex.com@localhost>]

On Mon,  8 Jan 2018 19:25:00 +0000 (UTC)
Fekete Zoltán <fekete.zoltan%minux.hu@localhost> wrote:

> The following reply was made to PR kern/52912; it has been noted by
> GNATS.
> 
> From: =?UTF-8?Q?Fekete_Zolt=C3=A1n?= <fekete.zoltan%minux.hu@localhost>
> To: gnats-bugs%netbsd.org@localhost
> Cc: 
> Subject: Re: kern/52912: hdafg: no sound from jack port on a laptop
> Date: Mon, 08 Jan 2018 20:22:05 +0100
> 
>  2018-01-08 07:50 időpontban jake.slazenger%yandex.com@localhost ezt írta:
>  >> Number:         52912
>  >> Category:       kern
>  >> Synopsis:       hdafg: no sound from jack port on a laptop
>  >> Confidential:   no
>  >> Severity:       non-critical
>  >> Priority:       medium
>  >> Responsible:    kern-bug-people
>  >> State:          open
>  >> Class:          sw-bug
>  >> Submitter-Id:   net
>  >> Arrival-Date:   Mon Jan 08 06:50:00 +0000 2018
>  >> Originator:     Jake Slazenger
>  >> Release:        CURRENT-8.0-171230
>  >> Organization:
>  >> Environment:  
>  > NetBSD localhost 8.0_BETA NetBSD 8.0_BETA (RUSTY) #0: Sun Jan  7
>  > 16:30:08 MSK 2018
>  > rusty@localhost:/usr/src/171230/src/sys/arch/amd64/compile/RUSTY
>  > amd64  
>  >> Description:  
>  > When I connect headphones to jack port on my laptop with Realtek
>  > ALC268 sound chip, sound is not switching to the headphones and
>  > continues to come out from built-in speakers.
>  > 
>  > For example, on Linux-based systems sound is automatically switches
>  > when headphones is connected.
>  > 
>  > Is it a bug, or I do something wrong and it can be switched
>  > manually?  
>  >> How-To-Repeat:  
>  > Connect headphones to jack port on a laptop with Realtek ALC268
>  > sound chip.  
>  >> Fix:  
>  
>  
>  Hi Jake,
>  
>  I had a similar problem, and finally I could figure out how to set
> jack up. Probably your codec is not set up correctly, and it is not a
> bug. There are several different codecs/setups, and kernel developers
> do not have the capacity to program each one.
>  
>  So, you have to solve it yourself. It's not really obvious however.
>  
>  1. You have to read carefully the snd_hda man page. There you will 
>  understand how the hda driver groups the different in/out parts
>  
>  2. Try to find a technical manual for your sound chip. Similar to
> mine here (Analog Devices 1984A):
>  http://www.analog.com/media/en/technical-documentation/obsolete-data-sheets/AD1984.pdf
>  
>  3. Use hdaudioctl get command to gain your current settings. You
> have to read and decode hexadecimal numbers...
>  
>  4. Then modify the xml file you got in point 3, and use hdaudioctl
> set command with the modified file apply changes. Then try jack.
> Repeat 3-4 until success.
>  
>  Another aproach: if you can program, you could modify the kernel,
> and recompile. Here is my patch, but this is device-dependent:
>  https://minux.hu/netbsd-hdaudio-jack-detection
>  
>  Good luck!
>  
>  I'm working on a script that translates that output file into human 
>  readable form. Just time is always an issue.
>  
>  Rgds,
>  
>  FeZ
>  

Thank you very much, FeZ, for the such detailed answer!

But, anyway, I didn't understand how association and sequence numbers
works (yes, I'm a little bit stupid).

So I looked to FreeBSD sources to find required assoc and seq numbers:
https://github.com/freebsd/freebsd/blob/d8596f6f687a64b994b065f3058155405dfc39db/sys/dev/sound/pci/hda/hdaa_patches.c

And used it with Fekete's patches... And it worked!

So problem is partially solved, I think.

And again, thank you very much for the help, FeZ!

Oh, and yes. I'm sorry for my very bad English.



Patch for 7.1.1 kernel:
--- src/sys/dev/pci/hdaudio/hdafg.c.orig	2018-02-15 15:23:24.000000000 +0300
+++ src/sys/dev/pci/hdaudio/hdafg.c	2018-02-15 23:37:49.000000000 +0300
@@ -657,6 +657,21 @@
 	}
 #endif
 
+        /* XXX ALC268 */
+        if (sc->sc_vendor == HDA_VENDOR_REALTEK && sc->sc_product == 0x0268) {
+	    if (COP_CFG_PORT_CONNECTIVITY(w->w_pin.config) == COP_PORT_JACK) {
+	        /* nid 20 */ 
+	        if (w->w_nid == 0x14) {
+		  /* set assoc=1 */
+		  w->w_pin.config &= ~0xf0;
+		  w->w_pin.config |= 0x10;
+		  /* set seq=15 */		
+		  w->w_pin.config &= ~0x0f;
+		  w->w_pin.config |= 0x0f;
+		}
+	    }
+	}
+   
 	conn = COP_CFG_PORT_CONNECTIVITY(w->w_pin.config);
 	color = COP_CFG_COLOR(w->w_pin.config);
 	defdev = COP_CFG_DEFAULT_DEVICE(w->w_pin.config);