From kwin  Thu Jan 30 12:23:57 2014
From: Helio Chissini de Castro <helio () kde ! org>
Date: Thu, 30 Jan 2014 12:23:57 +0000
To: kwin
Subject: Unity 3d ( The game engine, not the  ubuntu wm ) hides when use frameless setup
Message-Id: <1493147.yCqhR7OoKz () firefly>
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Hello all

Our base system that is deployed in our touch table machines are KDE 4 =
with=20
Fedora system. We use basically only Qt Qml application, full screen sp=
anned=20
on the dual screen setup, standard monitor and projection touch screen.=

Recently we got required to run some applications built on Unity3D and =
i=20
stumbled on a specific issue only on kwin.

The Unity runtime player has few options to handle window,=20
one of then is -popupwindow

Situation is, despite been working fine on regular windowed mode, if we=
 use=20
the popupwindow mode it creates a frameless window centered on screen w=
hich=20
simply hides itself when clicked with mouse or similar click iteraction=
 (=20
touch table ), but application still runs on background.

The same result not happens on bare X window or any other compositor/wi=
ndow=20
manager.

I tried run kwin with several different flags, with software render, wi=
thout=20
effects, and result is basically same.

Is anyone have some ideas on a possible solution or something that we c=
an=20
report to unity developers ?

I'm in process to upload on google drive the test application, runnable=
 on=20
linux machne.
https://drive.google.com/folderview?id=3D0B5p5FI_UgF8banZZVlFMRC1iYVE&u=
sp=3Dsharing


[]'s

=2D-=20
Helio Castro
Senior Software Engineer
KDE Developer since 2002
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