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Hi,<br>
<br>
I have been using jack for years without problems on my
debian/stable PC running 4.19.0-17-rt-amd64 #1 SMP PREEMPT RT Debian
4.19.194-3 (2021-07-18) x86_64.<br>
<br>
I recently acquired a Boss RC-505 which is giving me trouble getting
it's USB audio working. (By contrast I have a Scarlett 2i2 external
USB sound card which works 100%)<br>
<br>
I use qjackctl to set jack up, and it is giving some error messages
which I will include below.<br>
<br>
From the perspective of dmesg, lsusb and the info in qjackctl, it
looks like the RC-505 is being detected correctly it seems.<br>
<br>
FYI when I set up qjackctl to use the RC-505 instead of the
Scarlett, I see that jack is set up as follows:<br>
<br>
/usr/bin/jackd -dalsa -r48000 -p256 -n2 -Xseq -D -Chw:RC505
-Phw:PCH<br>
<br>
I am a programmer, so I'm not afraid to "get my hands dirty" - I
just don't know where to start. What would you guys suggest?<br>
<br>
Here's the output from qjackctl:<br>
8<-----------------------------------------------------------------------------------------------------<br>
15:30:24.643 Statistics reset.<br>
15:30:24.645 ALSA connection change.<br>
15:30:24.653 JACK is starting...<br>
15:30:24.653 /usr/bin/jackd -dalsa -r48000 -p256 -n2 -Xseq -D
-Chw:RC505 -Phw:PCH<br>
Cannot connect to server socket err = Connection refused<br>
Cannot connect to server request channel<br>
jack server is not running or cannot be started<br>
JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1,
skipping unlock<br>
JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1,
skipping unlock<br>
Cannot connect to server socket err = Connection refused<br>
Cannot connect to server request channel<br>
jack server is not running or cannot be started<br>
JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1,
skipping unlock<br>
JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1,
skipping unlock<br>
jackdmp 1.9.12<br>
Copyright 2001-2005 Paul Davis and others.<br>
Copyright 2004-2016 Grame.<br>
Copyright 2016-2017 Filipe Coelho.<br>
jackdmp comes with ABSOLUTELY NO WARRANTY<br>
This is free software, and you are welcome to redistribute it<br>
under certain conditions; see the file COPYING for details<br>
JACK server starting in realtime mode with priority 10<br>
self-connect-mode is "Don't restrict self connect requests"<br>
audio_reservation_init<br>
Acquire audio card Audio3<br>
Acquire audio card Audio1<br>
creating alsa driver ...
hw:PCH|hw:RC505|256|2|48000|0|0|nomon|swmeter|-|32bit<br>
15:30:24.817 ALSA connection graph change.<br>
15:30:24.818 JACK was started with PID=30608.<br>
configuring for 48000Hz, period = 256 frames (5.3 ms), buffer = 2
periods<br>
ALSA: final selected sample format for capture: 32bit integer
little-endian<br>
ALSA: use 2 periods for capture<br>
ALSA: final selected sample format for playback: 32bit integer
little-endian<br>
ALSA: use 2 periods for playback<br>
15:30:24.953 ALSA connection graph change.<br>
port created: Midi-Through:midi/playback_1<br>
port created: Midi-Through:midi/capture_1<br>
port created: RC-505:midi/playback_1<br>
port created: RC-505:midi/capture_1<br>
port created: RC-505:midi/playback_2<br>
port created: RC-505:midi/capture_2<br>
15:30:31.868 <b>Could not connect to JACK server as client. -
Overall operation failed. - Server communication error</b>. Please
check the messages window for more info.<br>
15:30:31.876 Shutdown script...<br>
15:30:31.876 /usr/local/bin/unloop2jack.sh<br>
JackPosixProcessSync::LockedTimedWait error usec = 5000000 err =
Connection timed out<br>
Driver is not running<br>
Cannot create new client<br>
Cannot read socket fd = 21 err = Success<br>
CheckRes error<br>
JackSocketClientChannel read fail<br>
Cannot open qjackctl client<br>
JackShmReadWritePtr1::~JackShmReadWritePtr1 - Init not done for -1,
skipping unlock<br>
JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1,
skipping unlock<br>
JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1,
skipping unlock<br>
Unknown request 4294967295<br>
CheckSize error size = 0 Size() = 12<br>
CheckRead error<br>
JackPosixProcessSync::LockedTimedWait error usec = 5000000 err =
Connection timed out<br>
Driver is not running<br>
Cannot create new client<br>
Cannot read socket fd = 5 err = Success<br>
CheckRes error<br>
JackSocketClientChannel read fail<br>
Cannot open jack_disconnect client<br>
JackShmReadWritePtr1::~JackShmReadWritePtr1 - Init not done for -1,
skipping unlock<br>
JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1,
skipping unlock<br>
JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1,
skipping unlock<br>
JACK server not running?<br>
Unknown request 4294967295<br>
CheckSize error size = 0 Size() = 12<br>
CheckRead error<br>
JackPosixProcessSync::LockedTimedWait error usec = 5000000 err =
Connection timed out<br>
Driver is not running<br>
Cannot create new client<br>
Cannot read socket fd = 5 err = Success<br>
CheckRes error<br>
JackSocketClientChannel read fail<br>
Cannot open jack_disconnect client<br>
JackShmReadWritePtr1::~JackShmReadWritePtr1 - Init not done for -1,
skipping unlock<br>
JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1,
skipping unlock<br>
JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1,
skipping unlock<br>
JACK server not running?<br>
Unknown request 4294967295<br>
CheckSize error size = 0 Size() = 12<br>
CheckRead error<br>
JackPosixProcessSync::LockedTimedWait error usec = 5000000 err =
Connection timed out<br>
Driver is not running<br>
Cannot create new client<br>
Cannot read socket fd = 5 err = Success<br>
CheckRes error<br>
JackSocketClientChannel read fail<br>
Cannot open jack_disconnect client<br>
JackShmReadWritePtr1::~JackShmReadWritePtr1 - Init not done for -1,
skipping unlock<br>
JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1,
skipping unlock<br>
JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1,
skipping unlock<br>
JACK server not running?<br>
Unknown request 4294967295<br>
CheckSize error size = 0 Size() = 12<br>
CheckRead error<br>
JackPosixProcessSync::LockedTimedWait error usec = 5000000 err =
Connection timed out<br>
Driver is not running<br>
Cannot create new client<br>
Cannot read socket fd = 5 err = Success<br>
CheckRes error<br>
JackSocketClientChannel read fail<br>
Cannot open jack_disconnect client<br>
JackShmReadWritePtr1::~JackShmReadWritePtr1 - Init not done for -1,
skipping unlock<br>
JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1,
skipping unlock<br>
JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1,
skipping unlock<br>
JACK server not running?<br>
Unknown request 4294967295<br>
CheckSize error size = 0 Size() = 12<br>
CheckRead error<br>
15:30:52.344 Shutdown script terminated successfully.<br>
15:30:52.344 JACK is stopping...<br>
Jack main caught signal 15<br>
8<-----------------------------------------------------------------------------------------------------<br>
<br>
Many thanks,<br>
Thomas<br>
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