I have recently upgraded an old MacBook Pro with a new version (2016 with touch bar). When I try using the screen function with an external monitor I get this warning:
Couldn't compute a reliable estimate of monitor refresh interval! Trouble with VBL synching?!?
----- ! PTB - ERROR: SYNCHRONIZATION FAILURE ! ----
The graphics on the Mac says:
Radeon Pro 450 2048 MB
and I am using an external monitor with Intel HD Graphics 530 1536 MB
(PS: I tried using different machines: a Mac mini server and a MacBook Air and another MacBook Pro 15 inch (2015), they all work fine, it's just a problem of this new machine)
PS2: when I try using only the built in monitor, I still get some warnings saying that the timing might be inaccurate ...
PS3: I tried using the latest version of PTB (3.0.14) but no luck still getting the same error message
Thanks very much for your help!