[ardour-users] Running Jack with Hammerfall HDSP

[Dan Sawyer]

Okay, I know I'm missing something ridiculously simple here, but I can't get 
Jack to run reliably.  Any help would be tremendously appreciated. Here's 
what's going on (output from qjackctl):


17:49:23.205 /usr/bin/jackd -v -R -t500 -dalsa -dhw:0 -r48000 -p4096 -n2 -s 
-i26 -o26
17:49:23.216 JACK was started with PID=30533 (0x7745).
getting driver descriptor from /usr/lib/jack/jack_dummy.so
getting driver descriptor from /usr/lib/jack/jack_alsa.so
jackd 0.94.0
Copyright 2001-2003 Paul Davis and others.
jackd comes with ABSOLUTELY NO WARRANTY
This is free software, and you are welcome to redistribute it
under certain conditions; see the file COPYING for details
registered builtin port type 32 bit float mono audio
loading driver ..
new client: alsa_pcm, id = 1 type 1 @ 0x8057a30 fd = -1
apparent rate = 48000
creating alsa driver ... hw:0|hw:0|4096|2|48000|26|26|nomon|swmeter|soft-mode|
32bit
control device hw:0
configuring for 48000Hz, period = 4096 frames, buffer = 2 periods
new buffer size 4096
JACK: unable to mlock() port buffers: Operation not permitted
registered port alsa_pcm:capture_1, offset = 16384
registered port alsa_pcm:capture_2, offset = 32768
registered port alsa_pcm:capture_3, offset = 49152
registered port alsa_pcm:capture_4, offset = 65536
registered port alsa_pcm:capture_5, offset = 81920
registered port alsa_pcm:capture_6, offset = 98304
registered port alsa_pcm:capture_7, offset = 114688
registered port alsa_pcm:capture_8, offset = 131072
registered port alsa_pcm:capture_9, offset = 147456
registered port alsa_pcm:capture_10, offset = 163840
registered port alsa_pcm:capture_11, offset = 180224
registered port alsa_pcm:capture_12, offset = 196608
registered port alsa_pcm:capture_13, offset = 212992
registered port alsa_pcm:capture_14, offset = 229376
registered port alsa_pcm:capture_15, offset = 245760
registered port alsa_pcm:capture_16, offset = 262144
registered port alsa_pcm:capture_17, offset = 278528
registered port alsa_pcm:capture_18, offset = 294912
registered port alsa_pcm:capture_19, offset = 311296
registered port alsa_pcm:capture_20, offset = 327680
registered port alsa_pcm:capture_21, offset = 344064
registered port alsa_pcm:capture_22, offset = 360448
registered port alsa_pcm:capture_23, offset = 376832
registered port alsa_pcm:capture_24, offset = 393216
registered port alsa_pcm:capture_25, offset = 409600
registered port alsa_pcm:capture_26, offset = 425984
registered port alsa_pcm:playback_1, offset = 0
registered port alsa_pcm:playback_2, offset = 0
registered port alsa_pcm:playback_3, offset = 0
registered port alsa_pcm:playback_4, offset = 0
registered port alsa_pcm:playback_5, offset = 0
registered port alsa_pcm:playback_6, offset = 0
registered port alsa_pcm:playback_7, offset = 0
registered port alsa_pcm:playback_8, offset = 0
registered port alsa_pcm:playback_9, offset = 0
registered port alsa_pcm:playback_10, offset = 0
registered port alsa_pcm:playback_11, offset = 0
registered port alsa_pcm:playback_12, offset = 0
registered port alsa_pcm:playback_13, offset = 0
registered port alsa_pcm:playback_14, offset = 0
registered port alsa_pcm:playback_15, offset = 0
registered port alsa_pcm:playback_16, offset = 0
registered port alsa_pcm:playback_17, offset = 0
registered port alsa_pcm:playback_18, offset = 0
registered port alsa_pcm:playback_19, offset = 0
registered port alsa_pcm:playback_20, offset = 0
registered port alsa_pcm:playback_21, offset = 0
registered port alsa_pcm:playback_22, offset = 0
registered port alsa_pcm:playback_23, offset = 0
registered port alsa_pcm:playback_24, offset = 0
registered port alsa_pcm:playback_25, offset = 0
registered port alsa_pcm:playback_26, offset = 0
++ jack_rechain_graph():
client alsa_pcm: internal client, execution_order=0.
-- jack_rechain_graph()
cannot set thread to real-time priority (FIFO/20) (1: Operation not permitted)
no realtime watchdog thread
cannot use real-time scheduling (FIFO/10) (1: Operation not permitted)
30533 waiting for signals
load = 0.4875 max usecs: 832.000, spare = 84501.000
load = 0.7313 max usecs: 832.000, spare = 84501.000
17:49:25.344 Could not connect to JACK server as client.