Re: [Jack-Devel] jack errors with firewire saffire pro 24, help please ?

On Sat, Mar 02, 2019 at 09:16:51AM -0700, lunatikos wrote: The error message doesn't seem to have made it into your post. Could you send it through? Could you also describe how you are starting jackd and what options you are using. With the Saffire Pro 24 there are two ways to get audio into and out of the device (what I'll call "streaming" here): one is jack-specific and the other is not. 1. Use FFADO's user-space streaming driver. This is accessed using jackd's "firewire" backend. If running jackd from the command line you would do something like: jackd -d firewire -p512 -n3 You will then be able to use your Saffire in any program which can connect to JACK. To use this method, you may have to blacklist the alternative kernel-based streaming driver, snd-dice. For testing you can manually remove the module: rmmod snd-dice To make this permanent, add the line blacklist snd-dice to a file under /etc/modprobe.d/ or your distribution's equivalent. 2. Use the kernel streaming driver. This comes from the ALSA project and relies on the snd-dice kernel driver which should be loaded by default on current distributions. To use this method with jack: jackd -d alsa ... where "..." are any other options you might need in your situation. If used this way, the saffire will be usable under programs which can use JACK. Being an ALSA driver, your Saffire will also be accessible to programs which can use ALSA drivers directly at times when jackd is not running. Depending on your system setup, your pulseaudio configuration may or may not need adjusting so your audio programs can access the saffire in the way they need to. Regards jonathan