On Mon, Feb 24, 2014 at 12:48 PM, David J Myers <david.myers@amg-panogenics.com> wrote:

0.121.2 is the version I got from ubuntu with apt-get install.

I removed that version and downloaded and built 0.124.1, however when I now try to run

jackd –d alsa
I get back

jackd: unknown driver 'alsa'

What’s going on?

Your system is missing the development version of the ALSA library. So JACK was built without ALSA support.

What version of Ubuntu are you using? I am unable to believe that 0.121 is the latest version available for any reasonably recent version of that distro.

--p