I’m using a MacBook Pro (Retina) 15" running OS X 10.11.2 and I just took a look on the side scroller tutorial.
dmengine seems to lock and the game don’t run if I turn on the fullscreen switch in game.project.
I see this in console (OS X)
31/12/15 11:24:38,165 WindowServer[201]: disable_update_timeout: UI updates were forcibly disabled by application “dmengine” for over 1.00 seconds. Server has re-enabled them.
31/12/15 11:24:52,165 WindowServer[201]: disable_update_likely_unbalanced: UI updates still disabled by application “dmengine” after 15.00 seconds (server forcibly re-enabled them after 1.00 seconds). Likely an unbalanced disableUpdate call.
31/12/15 11:26:01,574 WindowServer[201]: _CGXRemoveWindowFromWindowMovementGroup: window 0x54 is not attached to window 0x67
31/12/15 11:26:09,893 WindowServer[201]: Surface testing disallowed updates for 10 sequential attempts…
31/12/15 11:26:09,903 WindowServer[201]: Surface test allowed updates after 11 attempts (44 ms)
and this in Defold console
INFO:ENGINE: Defold Engine 1.2.71 (00c6dbb)