[Jack-Devel] Sudden problem Jack refuses to start.

[liebrecht at grossmann-venter.com]

On 2019-08-06 10:54, John Rigg wrote:
> On Tue, Aug 06, 2019 at 01:06:31AM -0400, 
> liebrecht at grossmann-venter.com wrote:
>> It looks to me like it is and ALSA problem....
> 
> What happens if you do the following?
> 1. Disable Pulseaudio
> 2. Look in /proc/asound/ to see which hw device (hw:0, hw:1 etc)
>    your 1818 is
> 3. Start jackd from command line with -dhw:0 (or whichever one
>    is the 1818) instead of the "fancy" name
> 
> John
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> Jack-Devel at lists.jackaudio.org
> http://lists.jackaudio.org/listinfo.cgi/jack-devel-jackaudio.org


Thank you John,
I get the following, would you mind to help me interprate this as I do 
not see how I can change the jack string with this info.


/proc/asound$ grep -r -i 1818 *
card1/midi0:AudioBox 1818 VSL
card1/stream0:PreSonus AudioBox 1818 VSL at usb-0000:00:12.2-1.1, high 
speed : USB Audio
card1/usbmixer:Card: PreSonus AudioBox 1818 VSL at usb-0000:00:12.2-1.1, 
high speed
card1/usbmixer:Card: PreSonus AudioBox 1818 VSL at usb-0000:00:12.2-1.1, 
high speed
card1/usbmixer:    Control: name="AudioBox 1818 VSL Audio 2.0 Output 
Playback", index=3
card1/usbmixer:    Control: name="AudioBox 1818 VSL Audio 2.0 Output 
Playback", index=2
card1/usbmixer:    Control: name="AudioBox 1818 VSL Audio 2.0 Output 
Playback", index=1
card1/usbmixer:    Control: name="AudioBox 1818 VSL Audio 2.0 Output 
Playback", index=0
card1/usbmixer:    Control: name="AudioBox 1818 VSL Clock Selector Clock 
Sour", index=0
card1/usbmixer:    Control: name="AudioBox 1818 VSL Internal Clock 
Validity", index=0
card1/usbmixer:    Control: name="AudioBox 1818 VSL S/PDIF Clock 
Validity", index=0
card1/usbmixer:    Control: name="AudioBox 1818 VSL ADAT Clock 
Validity", index=0
cards: 1 [VSL            ]: USB-Audio - AudioBox 1818 VSL
cards:                      PreSonus AudioBox 1818 VSL at 
usb-0000:00:12.2-1.1, high speed
oss/sndstat:PreSonus AudioBox 1818 VSL at usb-0000:00:12.2-1.1, high 
speed
oss/sndstat:1: AudioBox 1818 VSL
seq/clients:Client  20 : "AudioBox 1818 VSL" [Kernel]
seq/clients:  Port   0 : "AudioBox 1818 VSL MIDI 1" (RWeX)
VSL/midi0:AudioBox 1818 VSL
VSL/stream0:PreSonus AudioBox 1818 VSL at usb-0000:00:12.2-1.1, high 
speed : USB Audio
VSL/usbmixer:Card: PreSonus AudioBox 1818 VSL at usb-0000:00:12.2-1.1, 
high speed
VSL/usbmixer:Card: PreSonus AudioBox 1818 VSL at usb-0000:00:12.2-1.1, 
high speed
VSL/usbmixer:    Control: name="AudioBox 1818 VSL Audio 2.0 Output 
Playback", index=3
VSL/usbmixer:    Control: name="AudioBox 1818 VSL Audio 2.0 Output 
Playback", index=2
VSL/usbmixer:    Control: name="AudioBox 1818 VSL Audio 2.0 Output 
Playback", index=1
VSL/usbmixer:    Control: name="AudioBox 1818 VSL Audio 2.0 Output 
Playback", index=0
VSL/usbmixer:    Control: name="AudioBox 1818 VSL Clock Selector Clock 
Sour", index=0
VSL/usbmixer:    Control: name="AudioBox 1818 VSL Internal Clock 
Validity", index=0
VSL/usbmixer:    Control: name="AudioBox 1818 VSL S/PDIF Clock 
Validity", index=0
VSL/usbmixer:    Control: name="AudioBox 1818 VSL ADAT Clock Validity", 
index=0


Also
VSL/usbmixer:    Control: name="AudioBox 1818 VSL Clock Selector Clock 
Sour", index=0
Seemingly is at the core of why my spdif stopped working, but that is 
another issue.
Alsa UG is basically dead, and dont resp-ond.
I have contacted them about the clock sour issue and not a single post 
on the ug for months now.
I guess it is time to get rid of alsa. Hope something else comes along.