Probably because it's running OpenGL ES *not* OpenGL which Gem doesn't have support for, as fas I know ...

On Jun 20, 2014, at 6:00 AM, via Pd-list <pd-list@lists.iem.at> wrote:

From: Cyrille Henry via Pd-list <pd-list@lists.iem.at>
Subject: [PD] Gem on UDOO
Date: June 20, 2014 at 5:02:25 AM EDT
To: "pd-list@lists.iem.at" <pd-list@lists.iem.at>
Reply-To: Cyrille Henry <ch@chnry.net>


hello,

UDOO board are advertised to be full openGL compatible.
Since I've got an UDOO board with lubuntu installer, i tried to run Gem.
i use Gem compiled from git.

i worked with major limitation :
- it's only in fullscreen, since opengl did not work on a window (udoo limitation)
- pd crash when destroying the opengl context

so, it's not really usable.

cheers
cyrille

--------
Dan Wilcox
@danomatika