Aha! similar here! Didn't do that before: resizing after freezing. So almost sure it has to do with resizing only? 1: after maximizing to full screen parts are not redrawn but still can drag windows around:
<http://forum.world.st/file/n4961655/Scr2017-08-161429.png> 2: then after coming back and reentering full screen the everthing is redrawn again,(can't remembering opening a Test Window probably clicked on a non refreshed part in window) But when dragging windows parts are not redrawn (you can see almost exactly where I dragged because the gradient background reveals differences if you'd look closely. Still, Pharo is still alive. but doesn't redraw the parts when e.g. evaluating something in a Playground as can be seen in the last 3rd screen dump. <http://forum.world.st/file/n4961655/Scr2017-08-161432.png> <http://forum.world.st/file/n4961655/Scr2017-08-161436.png> So, in summary: resizing the screen in any way can freeze/unfreeze Pharo again and screen redrawing is in error. TedvG -- View this message in context: http://forum.world.st/Pharo-6-0-and-6-1-64-bit-freeze-on-MacMini-tp4957969p4961655.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.
