No sound using back panel

P

pkubaj

I use back panel in my PC to connect headphones. It works great on Windows, but not at all on FreeBSD. Using the front panel, sound works, but I want to use the back panel. What's strange is that sound worked right after the installation. The problem is better described at https://lists.freebsd.org/pipermail/freebsd-stable/2015-March/081908.html and https://lists.freebsd.org/pipermail/freebsd-stable/2015-March/081954.html. I'm only posting it here to ask more people. If you know more about how to solve it, please post.
 
Only one sound output is the default on FreeBSD. You can check which one it is by:
cat /dev/sndstat
If you look at the FreeBSD Handbook, it says how to change the default, and that it can also mix audio to many audio outputs.
 
That's what I did. I've also tried other suggestions from mailing list, like removing unnecessary sound drivers from my kernel.
 
The output is following:

Code: 
Installed devices:
pcm0: <NVIDIA (0x0071) (HDMI/DP 8ch)> (play)
pcm1: <NVIDIA (0x0071) (HDMI/DP 8ch)> (play)
pcm2: <NVIDIA (0x0071) (HDMI/DP 8ch)> (play)
pcm3: <NVIDIA (0x0071) (HDMI/DP 8ch)> (play)
pcm4: <Realtek ALC892 (Rear Analog 5.1/2.0)> (play/rec) default
pcm5: <Realtek ALC892 (Front Analog)> (play/rec)
pcm6: <Realtek ALC892 (Rear Digital)> (play)
pcm7: <USB audio> (rec)

I've tried setting default to all values from 0 to 7, but it doesn't help. Strange thing is that if I set
Code: 
hw.snd.default_unit
to 5 and switch to the front panel, it works, but I need the back panel.

wblock@
I've used FreeBSD for 5 years, so I know what it does :) I may have not written it accurately, but the person asking on the mailing list is me.
 
pkubaj said:
hw.snd.default_unit=4
Click to expand...
is supposed to be your rear panel:
pkubaj said:
pcm4: <Realtek ALC892 (Rear Analog 5.1/2.0)> (play/rec) default
Click to expand...
If you are sure pcm4 does not work then you are facing a chore.

I would try to digest snd_hda(4), as you will likely have to re-assign your gpio pins.
You can generate the default configuration as described here Thread 36894.
You also will need to consider how you want your pins.

For example:
microphone on the front panel
sound output to standalone speakers on the rear
front headphones to mute rear output when plugged in.
 
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