Hi,
I'm running Pd Extended 0.43.4 on Ubuntu 14.04. I've got a Dell XPS13 with Intel Ivybridge Mobile i7 graphics and I'm getting lots of screen tear/flicker when I go full screen with an external monitor attached. It doesn't matter if I'm full screen on the external or primary monitor, I still get lots of flicker.
Attached is an example patch that causes this problem (contains flashing colours)
I've noticed that if I don't go full screen (deleting border 0) then the flicker stops, but I then have the window borders and menu bar being displayed.
Is this a problem with GEM?