Hi.I experienced a problem of PTB-Error: Synchronization Failure when I am using the KbDemo of Psychtoolbox-3 in Microsoft Window 10 Operating System. The following messages pop out when I executed the KbDemo command.
PTB-ERROR: Mismatch between requested display swap interval 1 and actual swap interval 0! Synchronization of Screen('Flip') to display refresh will likely malfunction!
PTB-ERROR: This is either a bug in your graphics driver or system setup, or some misconfiguration in the display setting control panel of your system. See 'help SyncTrouble' for more info.
----- ! PTB - ERROR: SYNCHRONIZATION FAILURE ! ----
One or more internal checks (see Warnings above) indicate that synchronization
of Psychtoolbox to the vertical retrace (VBL) is not working on your setup.
This will seriously impair proper stimulus presentation and stimulus presentation timing!
Please read 'help SyncTrouble' for information about how to solve or work-around the problem.
You can force Psychtoolbox to continue, despite the severe problems, by adding the command
Screen('Preference', 'SkipSyncTests', 1); at the top of your script, if you really know what you are doing.
Error using Screen
See error message printed above.
Error in KbDemo>KbDemoPart4 (line 188)
[ window, windowRect ] = Screen('OpenWindow', whichScreen);
Error in KbDemo (line 93)
KbDemoPart4;
