Thank you - you may well be correct about the dumbness - although I had thought that realtime was enabled - perhaps the tech at the show moved some values trying to fix the problem- The hdspConf had indeed been moved from 96k to 48 - no idea how or why and this was certainly causing problems. Thanks for the responses - it is running and i'll take it back to the show - which unfortunately has no internet installed. iain On Sat, 2012-07-28 at 11:48 -0400, Paul Davis wrote: > > > On Sat, Jul 28, 2012 at 11:30 AM, Iain Mott <mott@xxxxxxxxxxxxxxx> > wrote: > Hi list - i have an installation that's been running for a > week and has > suddenly failed. > > Uses ubuntu 11.10 and a hdsp/multiface setup. What is > happening is Jack > is failing to start > > There is a "D-BUS: JACK server could not be started" error > when QjackCtl > > this is confusing and misleading and just incredibly dumb. but, moving > on .... > > > Sat Jul 28 12:27:20 2012: JACK server starting in non-realtime > mode > > not too smart, but okay. > > Sat Jul 28 12:27:20 2012: [1m [31mERROR: Failed to acquire > device > name : Audio2 error : Input/output error [0m > Sat Jul 28 12:27:20 2012: [1m [31mERROR: Audio device hw:DSP > cannot be > acquired, trying to open it anyway... [0m > > ok, so device acquisition logic is just completely optional ... fine. > moving on. > > Sat Jul 28 12:27:20 2012: creating alsa driver ... hw:DSP| > hw:DSP|4096|2| > 96000|0|0|nomon|swmeter|-|32bit > Sat Jul 28 12:27:20 2012: configuring for 96000Hz, period = > 4096 frames > (42.7 ms), buffer = 2 periods > Sat Jul 28 12:27:20 2012: ALSA: final selected sample format > for > capture: 32bit integer little-endian > Sat Jul 28 12:27:20 2012: ALSA: use 2 periods for capture > Sat Jul 28 12:27:20 2012: [1m [31mERROR: ALSA: cannot set > hardware > parameters for capture [0m > > and there we have the "root" of your problem. first thing to try is to > start varying the parameters and see if anything makes a different > (period size being the obvious one, but also sample rate). > _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/listinfo/linux-audio-user
