I checked alsamixer and have no means to enable/disable channels ... :( ...
On Sep 30 15, Seeker : > To: debian-user@lists.debian.org > Date: Wed, 30 Sep 2015 23:10:39 -0700 > From: Seeker <seeker5...@comcast.net> > Subject: Re: Sound card question > User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:38.0) Gecko/20100101 > Thunderbird/38.2.0 > X-Loop: debian-user@lists.debian.org > > > > On 9/30/2015 10:39 AM, Doug wrote: > > > > > >On 09/30/2015 09:55 AM, Danny wrote: > >>Hi guys, > >> > >>I have a Sigmatel STAC9227 on-board sound card. Everything works fine as > >>it > >>should. It has the normal Mic , Ext.Speaker and Line-Out jacks. > >> > >>Currently the Mic and Ext.Speaker plugs are permanently occupied via > >>speaker/mic > >>headphones (Amateur Radio Stuff) ... > >> > >>What I would like to know is if it would be possible to send audio that > >>goes to > >>the headphones to the Line-Out jack at the same time? > >> > >>Thank You > >> > >>Danny > >> > >> > >Why not just get a Y adapter? > > > >--dm > > > Ditto on the Y adapter, or some other external solution. > > Normal 3 jack hardware would be Pink (Microphone), Green (Audio Out), Blue > (Line In). > > Some hardware implementations do allow some jack functions to be changed, > but that > may or may not be the case for your specific hardware and if the hardware is > capable > may or may not be a feature that is implemented in the linux driver/mixer > software. > > Normally if it is an option that is implemented I would expect it to show as > a toggle in > one of the alsa mixers, possibly in the pulse audio stuff as well, similar > to the way > 'Mic Boost' might show in the mixers when the hardware supports that > function. > > If you do actually have an audio out and a line out and the line out doesn't > produce > audio when something is plugged into the audio out, it may be an indication > that it's > a hardwired mechanical function built into the audio out jack to break the > circuit to the > line out jack when anything is plugged into audio out. > > There are a few variables between the capabilities of the audio chip, the > mixer it is paired > with at the hardware level, the way the jacks are routed to these and the > way these show > up in the mixer at the software level. > > Maybe someone with the same/similar audio hardware will chime in with what > they see. > > Later, Seeker
