are you (the user executing fluxus) allowed to use jack with realtime- priority on your machine?
g On Wed, Oct 09, 2019 at 07:10:21AM +1100, Javier Candeira wrote: > Hi again, > > I was following the tutorial, and I got an error when first trying to read > audio into Fluxus and using it for animation: > > ``` > jcz@darthvader:~$ fluxus temp.scm > Welcome to fluxus. > Type (help) for info. > Cannot lock down 82280346 byte memory area (Cannot allocate memory) > Cannot use real-time scheduling (RR/5)(1: Operation not permitted) > JackClient::AcquireSelfRealTime error > ``` > > The script I was running at the time: > > ``` > (clear) > (start-audio "system:capture_1" 1024 44100) > (define (armonics) > (colour (vector (gh 0) (gh 1) (gh 2))) > (draw-cube)) > > (every-frame (armonics)) > ``` > > And the audio configuration seems right, I was just playing music videos on > a browser and using jack to connect main PC output to input: > > ``` > 21:26:56.676 JACK connection graph change. > Cannot lock down 82280346 byte memory area (Cannot allocate memory) > Tue Oct 8 21:26:56 2019: New client 'qjackctl' with PID 3552 > 21:27:09.139 Transport start. > 21:27:32.764 JACK connection change. > Tue Oct 8 21:27:32 2019: Connecting 'system:capture_1' to 'system:playback_1' > 21:27:36.365 JACK connection change. > Tue Oct 8 21:27:36 2019: Connecting 'system:capture_2' to 'system:playback_2' > 21:28:29.283 JACK connection graph change. > 21:28:29.339 JACK connection change. > Tue Oct 8 21:28:29 2019: New client 'Fluxus' with PID 5324 > Tue Oct 8 21:28:29 2019: Connecting 'system:capture_1' to 'Fluxus:In0' > ``` > > I'm running Jack through something called QjackCtl, which was what Ubuntu > shows when you put "jack" into the Gnome Shell search box. > > Cheers, > Javier >
