To be honest, it's been so long since I've had my head in PD that I can't even remember what all of the pieces of my fiddle script is doing (that's another email for another list, I think....)
But let's say I just want to start pd like this:
pdextended -jack channels 2
Within PD, when I click on 'test audio and midi', I get the following DIO errors in pd along with no test tone (after I select "60", of course) :
Sun Aug 21 11:09:33 2011: Loading settings from "/home/aaron/.config/jack/conf.xml" using expat_2.0.1 ...
Sun Aug 21 11:09:33 2011: setting engine option "driver" to value "alsa"
Sun Aug 21 11:09:33 2011: driver "alsa" selected
Sun Aug 21 11:09:33 2011: setting engine option "realtime" to value "false"
Sun Aug 21 11:09:33 2011: setting engine option "verbose" to value "false"
Sun Aug 21 11:09:33 2011: setting engine option "client-timeout" to value "500"
Sun Aug 21 11:09:33 2011: setting for driver "net" found
Sun Aug 21 11:09:33 2011: setting for driver "dummy" found
Sun Aug 21 11:09:33 2011: setting for driver "alsa" found
Sun Aug 21 11:09:33 2011: setting driver option "device" to value "hw:0"
Sun Aug 21 11:09:33 2011: setting driver option "rate" to value "44100"
Sun Aug 21 11:09:33 2011: setting driver option "period" to value "1024"
Sun Aug 21 11:09:33 2011: setting driver option "nperiods" to value "3"
Sun Aug 21 11:09:33 2011: setting driver option "hwmon" to value "false"
Sun Aug 21 11:09:33 2011: setting driver option "hwmeter" to value "false"
Sun Aug 21 11:09:33 2011: setting driver option "duplex" to value "true"
Sun Aug 21 11:09:33 2011: setting driver option "softmode" to value "false"
Sun Aug 21 11:09:33 2011: setting driver option "monitor" to value "false"
Sun Aug 21 11:09:33 2011: setting driver option "dither" to value "n"
Sun Aug 21 11:09:33 2011: setting driver option "shorts" to value "false"
Sun Aug 21 11:09:33 2011: setting for driver "loopback" found
Sun Aug 21 11:09:33 2011: setting for driver "netone" found
Sun Aug 21 11:09:33 2011: setting for driver "firewire" found
Sun Aug 21 11:09:33 2011: setting for internal "netmanager" found
Sun Aug 21 11:09:33 2011: setting for internal "profiler" found
Sun Aug 21 11:09:33 2011: setting for internal "audioadapter" found
Sun Aug 21 11:09:33 2011: setting for internal "netadapter" found
Sun Aug 21 11:09:33 2011: Listening for D-Bus messages
Sun Aug 21 11:09:42 2011: ------------------
Sun Aug 21 11:09:42 2011: Controller activated. Version 1.9.7 (4236) built on Thu Jun 16 13:33:27 2011
Sun Aug 21 11:09:42 2011: Loading settings from "/home/aaron/.config/jack/conf.xml" using expat_2.0.1 ...
Sun Aug 21 11:09:42 2011: setting engine option "driver" to value "alsa"
Sun Aug 21 11:09:42 2011: driver "alsa" selected
Sun Aug 21 11:09:42 2011: setting engine option "realtime" to value "false"
Sun Aug 21 11:09:42 2011: setting engine option "verbose" to value "false"
Sun Aug 21 11:09:42 2011: setting engine option "client-timeout" to value "500"
Sun Aug 21 11:09:42 2011: setting for driver "net" found
Sun Aug 21 11:09:42 2011: setting for driver "dummy" found
Sun Aug 21 11:09:42 2011: setting for driver "alsa" found
Sun Aug 21 11:09:42 2011: setting driver option "device" to value "hw:0"
Sun Aug 21 11:09:42 2011: setting driver option "rate" to value "44100"
Sun Aug 21 11:09:42 2011: setting driver option "period" to value "1024"
Sun Aug 21 11:09:42 2011: setting driver option "nperiods" to value "3"
Sun Aug 21 11:09:42 2011: setting driver option "hwmon" to value "false"
Sun Aug 21 11:09:42 2011: setting driver option "hwmeter" to value "false"
Sun Aug 21 11:09:42 2011: setting driver option "duplex" to value "true"
Sun Aug 21 11:09:42 2011: setting driver option "softmode" to value "false"
Sun Aug 21 11:09:42 2011: setting driver option "monitor" to value "false"
Sun Aug 21 11:09:42 2011: setting driver option "dither" to value "n"
Sun Aug 21 11:09:42 2011: setting driver option "shorts" to value "false"
Sun Aug 21 11:09:42 2011: setting for driver "loopback" found
Sun Aug 21 11:09:42 2011: setting for driver "netone" found
Sun Aug 21 11:09:42 2011: setting for driver "firewire" found
Sun Aug 21 11:09:42 2011: setting for internal "netmanager" found
Sun Aug 21 11:09:42 2011: setting for internal "profiler" found
Sun Aug 21 11:09:42 2011: setting for internal "audioadapter" found
Sun Aug 21 11:09:42 2011: setting for internal "netadapter" found
Sun Aug 21 11:09:42 2011: Listening for D-Bus messages
Sun Aug 21 11:09:47 2011: Starting jack server...
Sun Aug 21 11:09:47 2011: JACK server starting in non-realtime mode
11:09:47.801 D-BUS: JACK server was started (org.jackaudio.service aka jackdbus).
11:09:48.054 ALSA connection graph change.
Sun Aug 21 11:09:47 2011: control device hw:0
Sun Aug 21 11:09:47 2011: control device hw:0
Sun Aug 21 11:09:47 2011: Acquired audio card Audio0
Sun Aug 21 11:09:47 2011: creating alsa driver ... hw:0|hw:0|1024|3|44100|0|0|nomon|swmeter|-|32bit
Sun Aug 21 11:09:47 2011: control device hw:0
Sun Aug 21 11:09:47 2011: configuring for 44100Hz, period = 1024 frames (23.2 ms), buffer = 3 periods
Sun Aug 21 11:09:47 2011: ALSA: final selected sample format for capture: 16bit little-endian
Sun Aug 21 11:09:47 2011: ALSA: use 3 periods for capture
Sun Aug 21 11:09:47 2011: ALSA: final selected sample format for playback: 32bit integer little-endian
Sun Aug 21 11:09:47 2011: ALSA: use 3 periods for playback
Sun Aug 21 11:09:47 2011: graph reorder: new port 'system:capture_1'
Sun Aug 21 11:09:47 2011: New client 'system' with PID 0
Sun Aug 21 11:09:47 2011: graph reorder: new port 'system:capture_2'
Sun Aug 21 11:09:47 2011: graph reorder: new port 'system:playback_1'
Sun Aug 21 11:09:47 2011: graph reorder: new port 'system:playback_2'
Sun Aug 21 11:09:47 2011: New client 'cadence' with PID 22834
Sun Aug 21 11:09:48 2011: New client 'a2j' with PID 23755
Sun Aug 21 11:09:48 2011: New client 'PulseAudio JACK Sink' with PID 23814
Sun Aug 21 11:09:48 2011: Connecting 'PulseAudio JACK Sink:front-left' to 'system:playback_1'
Sun Aug 21 11:09:48 2011: Connecting 'PulseAudio JACK Sink:front-right' to 'system:playback_2'
Sun Aug 21 11:09:48 2011: New client 'PulseAudio JACK Source' with PID 23814
Sun Aug 21 11:09:48 2011: Connecting 'system:capture_1' to 'PulseAudio JACK Source:front-left'
Sun Aug 21 11:09:48 2011: Connecting 'system:capture_2' to 'PulseAudio JACK Source:front-right'
11:09:49.960 Statistics reset.
11:09:49.979 Client activated.
11:09:50.016 JACK connection graph change.
Sun Aug 21 11:09:49 2011: New client 'qjackctl' with PID 5754
Thanks, all.
-Aaron
Pasuspender is a way to make PulseAudio let go of the soundcard when JACK wants to access it. This *is* nessisary on systems where Pulse is the main sound daemon, but as KX uses JACK for all its audio needs, it will not have any effect.
"Error: 2: can't open" did catch my eye though, are you passing any special arguments to your "dac~" in the patch? like "dac~ 1 2" or something to open the first & second channel? I've had problems there before, either because it did (or did *not*) start from 0. Can't remember the details, but perhaps that's it?
-Harry