Komplete Audio 6 misbehaving, JACK1 made it worse

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manic_b
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Posts: 48
Joined: Thu Aug 09, 2012 9:39 pm

Komplete Audio 6 misbehaving, JACK1 made it worse

Post by manic_b »

UPDATE:
Moving from a USB3 port to a USB2 port seems to have got things working reasonably. I'm still a bit concerned about the amount of mess in my setup; is there a good series of steps for ensuring a sane JACK1 installation?
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Hullo,

I've got a shiny Komplete Audio 6, which has been widely reported as very linux-friendly. Plugged it in with my existing interface (edirol UA-4FX), was able to switch to it and play sound. Changing sample rate led to trouble.

Next step: disconnect old interface, start playing with configuration. I ran into this problem (cannot register object path):
http://linuxmusicians.com/viewtopic.php?f=47&t=12346

Noting that switching to JACK1 seems to have worked for others, I added the JACK1 ppa and installed jack1:
https://launchpad.net/~kxstudio-team/+a ... untu/jack1

Several permutations of installing/uninstalling jack1 and jack2 later, nothing works. Clicking "configure" in Cadence does nothing but dump this into its log:

Code: Select all

Sun Jul 20 16:41:03 2014: Controller activated. Version 0.124.2
Sun Jul 20 16:41:03 2014: Loading settings from "/home/manicb/.config/jack/conf-jack1.xml" using expat_2.0.1 ...
Sun Jul 20 16:41:03 2014: setting engine option "driver" to value "alsa"
Sun Jul 20 16:41:03 2014: ERROR: unknown driver 'alsa'
Sun Jul 20 16:41:03 2014: setting for driver "firewire" found
Sun Jul 20 16:41:03 2014: setting driver option "rate" to value "44100"
Sun Jul 20 16:41:03 2014: setting for driver "net" found
Sun Jul 20 16:41:03 2014: ERROR: ignoring settings for unknown driver "netone"
Sun Jul 20 16:41:03 2014: ERROR: ignoring settings for unknown driver "loopback"
Sun Jul 20 16:41:03 2014: ERROR: ignoring settings for unknown driver "alsa"
Sun Jul 20 16:41:03 2014: setting for driver "dummy" found
Sun Jul 20 16:41:03 2014: setting driver option "rate" to value "44100"
Sun Jul 20 16:41:03 2014: ERROR: ignoring settings for unknown driver "alsarawmidi"
Sun Jul 20 16:41:03 2014: ERROR: unknown element "internals"
Sun Jul 20 16:41:03 2014: Listening for D-Bus messages
My ~/.config/jack/conf-jack1.xml is a copy of the previous conf.xml as it was compaining about being unable to find it.

Clearly my install is now a bit of a mess. What is the recommended procedure for getting my setup back into reasonable shape? What are the likely causes of issues with this card? I'm running 12.04 with KDE. I do have pulseaudio and would really prefer to keep it as I have a few Steam games installed that prefer it.

UPDATE: Installing the "jackd1" package appears to have things moving again; I guess that isn't done automatically by the jack1 package? Everything falls apart whenever I try to stop and restart the JACK server though:

Code: Select all

Sun Jul 20 17:25:22 2014: Starting jack server...
Sun Jul 20 17:25:22 2014: JACK compiled with System V SHM support.
Sun Jul 20 17:25:22 2014: loading driver "alsa" ...
Sun Jul 20 17:25:22 2014: creating alsa driver ... hw:K6,0|hw:K6,0|1024|2|48000|0|0|nomon|swmeter|-|32bit
Sun Jul 20 17:25:22 2014: configuring for 48000Hz, period = 1024 frames (21.3 ms), buffer = 2 periods
Sun Jul 20 17:25:22 2014: ALSA: final selected sample format for capture: 32bit integer little-endian
Sun Jul 20 17:25:22 2014: ALSA: use 2 periods for capture
Sun Jul 20 17:25:22 2014: ERROR: ALSA: cannot set hardware parameters for capture
Sun Jul 20 17:25:22 2014: ERROR: ALSA: cannot configure capture channel
Sun Jul 20 17:25:22 2014: ERROR: cannot load driver module alsa
Sun Jul 20 17:25:22 2014: ERROR: Failed to start server
UPDATE: nope, now the above error appears every time.

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