On Dec 2, 2018, at 12:00 PM, pd-list-request@lists.iem.at wrote:

From: Lorenzo Sutton <lorenzofsutton@gmail.com>
To: pd-list@lists.iem.at
Subject: Re: [PD] Disable JACK auto-connect from command line
Message-ID: <a1d8388f-feb3-9c6e-3763-19ad64fa0d1b@gmail.com>
Content-Type: text/plain; charset=utf-8; format=flowed

On 01/12/2018 18:52, IOhannes m zmölnig wrote:

On 12/1/18 6:11 PM, Lorenzo Sutton wrote:

Is there a way to disable autoconnecting hardware inputs to Pd's first
two inputs when using jack?

I need this for scripting the start of a patch which I do not want to
connect to jack 'system' inputs.

as reported by "pd -help":
$ pd -nojackconnect

Ah thanks! I was probably remembering command line switches of 10 years 
ago :)

Lorenzo.