On Tue, Jan 31, 2017 at 06:18:48PM +0100, Jörg Müller wrote:
I applied the patch to my system and it fixed the error!
However, I get the following error which seems to be caused by a code not being able to handle more than 256 channels:
wfs@wfs16:~$ jackd -R -d alsa -C madifx_record_all -P madifx_playback_all jackdmp 1.9.10 Copyright 2001-2005 Paul Davis and others. Copyright 2004-2014 Grame. jackdmp 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 no message buffer overruns no message buffer overruns no message buffer overruns JACK server starting in realtime mode with priority 10 self-connect-mode is "Don't restrict self connect requests" audio_reservation_init Acquire audio card Audio0 creating alsa driver ... madifx_playback_all|madifx_record_all|1024|2|48000|0|0|nomon|swmeter|-|32bit configuring for 48000Hz, period = 1024 frames (21.3 ms), buffer = 2 periods ALSA: final selected sample format for capture: 32bit float little-endian ALSA: use 8 periods for capture ALSA: final selected sample format for playback: 32bit float little-endian ALSA: use 8 periods for playback jackd: ../linux/alsa/JackAlsaDriver.cpp:122: virtual int Jack::JackAlsaDriver::Attach(): Assertion `fCaptureChannels < 256' failed. Aborted (core dumped)
What could be the problem here?
jackd only allows 256 ports maximum by default. Try using -p option to increase it, eg. to 512:
jackd -R -p512 -d alsa....etc
BTW you don't need to specify -R on recent jackd versions as it's realtime by default (use -r if you don't want realtime).
John