[LAU] Confusing qjackctl playback devices, no jackd output

[Paul Davis]

On Tue, Jul 8, 2014 at 9:22 AM, Len Ovens <len at ovenwerks.net> wrote:

>
> HDA audio has a unique "feature" called "jack sensing" (jack in this case
> is not jackd) where it changes how the audio interface is laid out by what
> it senses you have plugged in. This allows the MB to have fewer HW jacks
> while still having lots of i/o. there is an application called
> HDAJackRetask that _may_ help. Be aware that plugging and unplugging things
> will change how things are set up. Dirty contacts may effect things too.
>

this isn't related to jack sensing. on my main system, opening hw:0,n
provides an 8 channel device with the first two channels on outputs 1+2;
opening hw:0,m provides a 2 channel device with output on 7&8.
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