On Sep 14, 2017, at 10:24 AM, pd-list-request@lists.iem.at wrote:

Date: Thu, 14 Sep 2017 10:23:38 +0200
From: Raphaël Ilias <phae.ilias@gmail.com>
To: Nicolas Montgermont <list@nimon.org>
Cc: pd-list <pd-list@lists.iem.at>
Subject: Re: [PD] trouble with pd-0.48-0 and multiple screens
Message-ID:
<CADYAdN-4rBd2J08D5abKp8H8XtooxNqshPtNo5vdx01_YRiYvQ@mail.gmail.com>
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Roman, for me it happens when i try to open (again) a pd-subpatch that i
previously placed on the second monitor (on the left of the main monitor) :
instead of appearing in its previous position, the window appears outside
the screen (on the right of the right screen), so you can't see it, drag it
back...
Yes Nicolas, I experienced this with the "additional" monitor on the left,
so subpatches should probably have negative coordinates.

Hope this gives a clue to solve this, patching on two monitors is nice for
big patches...

all best

raphaël