snd_hda and front headphones jack

kaltheat at kaltheat at
Sun Mar 24 12:03:05 UTC 2013

On Tue, Mar 12, 2013 at 08:55:49AM -0500, Mark Felder wrote:
> Hi guys,
> I seem to be having problems getting my front headphones jack to work.  
> I've read the snd_hda man page and perhaps I'm doing this wrong, but  
> here's my setup:
> ... 
> If I am looking at this right I believe I need to set nid25 to as=1 which  
> matches the nid31 Speaker and probably also set seq=15. However, this  
> doesn't seem to be working. Am I overlooking something obvious?
> Thanks


in my setup I disabled all pins referring to "Unknown" and I disabled pins I 
don't need by setting as=0 without having any issues. I put Headphones and 
Speaker in same association (anything between 0 and 15, not 0, not 15), then I 
gave Headphones seq=15 and Speaker seq=14. As mentioned in manpage seq=15 for 
headphones will duplicate first pin in association, that would be Speaker. If I 
remember correctly online reconfiguring of device using dev.hdaa.*.reconfig 
sysctl-variable produced in some cases different devices than rebooting system 
with same changes of default configuration in device.hints.


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