I’m having trouble starting jack. It seems to be because ALSA: Cannot open PCM device alsa_pcm for playback. Nothing else is running audio afaik. I haven’t adjusted any audio settings to my knowledge. The only changes I had made to the system were to do with a tablet input and graphics.
I’m using Karmic, the 2.6.31-9-rt kernel and my 1010LT; the mobo’s audio is disabled via the bios.
Every few reboots jack will start ok, but I don’t understand why (though I’ve tried very hard to work it out!). Today I’ve rebooted a few times and jack just won’t fire up. Here’s the message output:
11:34:39.162 Patchbay deactivated. 11:34:39.164 Statistics reset. 11:34:39.304 ALSA connection graph change. 11:34:39.458 ALSA connection change. 11:34:40.844 JACK is starting... 11:34:40.846 /usr/bin/jackd -R -dalsa -dhw:0 -r44100 -p1024 -n2 no message buffer overruns jackd 0.116.1 Copyright 2001-2005 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 JACK compiled with System V SHM support. loading driver .. apparent rate = 44100 creating alsa driver ... hw:0|hw:0|1024|2|44100|0|0|nomon|swmeter|-|32bit control device hw:0 11:34:40.903 JACK was started with PID=7543. ALSA: Cannot open PCM device alsa_pcm for playback. Falling back to capture-only mode cannot load driver module alsa 11:34:41.284 JACK was stopped successfully. 11:34:41.285 Post-shutdown script... 11:34:41.286 killall jackd jackd: no process found 11:34:41.750 Post-shutdown script terminated with exit status=256. 11:34:43.021 Could not connect to JACK server as client. - Overall operation failed. - Unable to connect to server. Please check the messages window for more info.