Hello, I'm only a beginner and I see that you have your Jack up and running now. Unfortunately for me I have not been able to get Jack server running, so far I have a beaglebone A5 as well, with Ubuntu raring and I have installed ALSA and Jackd packages with apt-get.
Starting the server will give me two errors: 1) *Failed to connect to session bus for device reservation Unable to autolaunch a dbus-daemon without a $DISPLAY for X11* If I do an SSH with -CX I manage to get rid of this issue but I still have the following one: 2) *"Cannot lock down 82278944 byte memory area (Cannot allocate memory)Bus error"* I know this is to much to ask but could you describe the steps you followed for getting your system to work with Jack? Thanks a lot Ariel On Monday, November 5, 2012 8:36:58 AM UTC-5, ChrisSchuku wrote: > > Hi, > > I'm running ubuntu on the Beaglebone A5. I'm using jack to capture sound > from a custom-made soundcard connected to the beaglebone. Until very > recently jack was running just fine, however, suddenly I can't start the > jack server anymore as it crashes with a 'Bus error'. > > Only a few hours ago I was able to start a jack server with: > > jackd -d alsa -p 256 -n 4 -C hw:0 -r 48000 -i 8 > > Then I just installed g++ and libjack-dev packages in order to compile a > simple jack client. Since then starting a jack server gives me: > > ubuntu@arm:~$ jackd -v -d alsa -p 256 -n 4 -C hw:0 -r 48000 -i 8 > jackd 0.121.0 > Copyright 2001-2009 Paul Davis, Stephane Letz, Jack O'Quinn, Torben Hohn > 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 > > getting driver descriptor from /usr/lib/arm-linux-gnueabi/jack/jack_oss.so > getting driver descriptor from /usr/lib/arm-linux-gnueabi/jack/jack_net.so > getting driver descriptor from /usr/lib/arm-linux-gnueabi/jack/jack_alsa.so > getting driver descriptor from > /usr/lib/arm-linux-gnueabi/jack/jack_dummy.so > JACK compiled with System V SHM support. > server `default' registered > loading driver .. > registered builtin port type 32 bit float mono audio > registered builtin port type 8 bit raw midi > clock source = system clock via clock_gettime > start poll on 3 fd's > new client: alsa_pcm, id = 1 type 1 @ 0x17340 fd = -1 > apparent rate = 48000 > creating alsa driver ... -|hw:0|256|4|48000|8|0|nomon|swmeter|-|32bit > control device hw:0 > configuring for 48000Hz, period = 256 frames (5.3 ms), buffer = 4 periods > ALSA: final selected sample format for capture: 32bit integer little-endian > ALSA: use 16 periods for capture > new buffer size 256 > resizing port buffer segment for type 0, one buffer = 1024 bytes > resizing port buffer segment for type 1, one buffer = 1024 bytes > registered port system:capture_1, offset = 1024 > registered port system:capture_2, offset = 2048 > registered port system:capture_3, offset = 3072 > registered port system:capture_4, offset = 4096 > registered port system:capture_5, offset = 5120 > registered port system:capture_6, offset = 6144 > registered port system:capture_7, offset = 7168 > registered port system:capture_8, offset = 8192 > ++ jack_sort_graph > ++ jack_rechain_graph(): > -- jack_rechain_graph() > -- jack_sort_graph > 830 waiting for signals > Bus error > > It doesn't seem to be a problem with ALSA as I'm able to record via ALSA. > When trying to start jackd the kernel gives me two kind of nebulous > messages: > > [ 1870.399810] Alignment trap: not handling instruction edc76a06 at > [<401375ca>] > [ 1870.407562] Unhandled fault: alignment exception (0x801) at 0x400ea1e6 > > I really would appreciate any kind of suggestion or hint on this! > > Thanks, > Chris > > > > > > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
