On June 5, 2018 9:20:25 AM HST, Len Ovens <len@xxxxxxxxxxxxx> wrote: > On Tue, 5 Jun 2018, Mac wrote: > > > The piece I don't see is, assuming there is a device with 5 outputs, > how do you > > get jack to create playback_3, _4 etc. > > > > (I get aplay doesn't show jack, but, for example aplay -L lists > (this is a > > shortened list): > > > > front:CARD=PCH,DEV=0 > > HDA Intel PCH, ALC892 Analog > > Front speakers > > surround71:CARD=PCH,DEV=0 > > HDA Intel PCH, ALC892 Analog > > 7.1 Surround output to Front, Center, Side, Rear and Woofer > speakers > > hw:CARD=PCH,DEV=0 > > HDA Intel PCH, ALC892 Analog > > Direct hardware device without any conversions > > hw:CARD=PCH,DEV=1 > > HDA Intel PCH, ALC892 Digital > > Direct hardware device without any conversions > > > > How does jack decide to only do 2 playback_1,_2? > > > > I take it there is something else in alsa startup that says provide > for example > > surround71 > > I do not know if jack will accept surround71:PCH,0 for device. I do > not > know the mechanism by which it switches either. You are getting beyond > my > knowledge. It would not hurt to try. The other thing to look at may be > > hdajackretask. This shows what the audio jacks are currently being > used > for. I do not know if changing "blue Line In" to "Rear Side" will > change > hw:HDA from 2.0 to 4.0 for example. but it may be worth a try. Setting > > physical jacks to do surround operation may be all it takes. > > In my case the real answer is I don't know. I tend to disable any > internal > audio device to clear up one more thing that may interfere with "real > audio". My guess is if you pick the surround sound device as JACK's output device, you'll get the 7.1 outputs. But this is also well beyond my knowledge! -- David W. Jones gnome@xxxxxxxxxxxxx authenticity, honesty, community http://dancingtreefrog.com Sent from my Android device with F/LOSS K-9 Mail. _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx https://lists.linuxaudio.org/listinfo/linux-audio-user
