Hey GTK list,
I've uploaded a demo app on https://github.com/rehans/GtkSocketPlugDemo
It is very simple and just creates a GtkWindow with a GtkSocket child. A
GtkPlug with an GtkDrawingArea attached is connected to the socket. The
GtkDrawingArea redraws itself every 16ms and simply paints an image.
(Some things in the demo might not be very meaningful but it is just to
demo the problem)
While this demo works on Ubuntu 16.04 (tested on 3 PCs) with
libgtk-3-0:amd64 3.18.9-1ubuntu3.3 amd64 GTK+ graphical user
interface library
it starts flickering constantly on Ubuntu 17.04 with
libgtk-3-0:amd64 3.22.11-0ubuntu3 amd64 GTK+ graphical user interface
library
The Raspberry PI 3 with (Debian Stretch installed) shows the same
behavior like Ubuntu 17.04 with
libgtk-3-0:armhf 3.22.11-1+rpi3 armhf GTK+ graphical user interface
library
(I've checked the GTK Version with "dpkg -l libgtk-3-0" from Terminal)
Does anyone know what is causing this behavior and can help me out here?
Anything I can improve? Is this a GTK bug which was introduced after 3.18.9?
René
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