Thanks, again. I have run the setupPsychtoolbox() as mentioned in the link.
However, I get a big red and yellow warning screen when I run my expeirment-script.
The screen disappears and following are the errors I get:
WARNING: Querying rasterbeam-position doesn’t work on your setup!
(Returns a constant value 4352)
WARNING: This can happen if Psychtoolbox gets the mapping of connected
displays to graphics card
WARNING: outputs wrong. See ‘help DisplayOutputMappings’ for tips on
how to resolve this problem.
WARNING: Couldn’t determine end-line of vertical blanking interval for
your display! Trouble with beamposition queries?!?
WARNING: Detected end-line is -1, which is either lower or more than
25% higher than vbl startline 768 → Out of sane range!
PTB-INFO: OpenGL-Renderer is NVIDIA Corporation :: GeForce GT
610/PCIe/SSE2 :: 4.3.0 NVIDIA 319.60
PTB-INFO: VBL startline = 768 , VBL Endline = -1
PTB-INFO: Beamposition queries unsupported or defective on this
system. Using basic timestamping as fallback: Timestamps returned by
Screen(‘Flip’) will be less robust and accurate.
PTB-INFO: Measured monitor refresh interval from VBLsync = 16.673980
ms [59.973684 Hz]. (50 valid samples taken, stddev=0.031237 ms.)
PTB-INFO: Reported monitor refresh interval from operating system =
16.678063 ms [59.959000 Hz].
PTB-INFO: Small deviations between reported values are normal and no
reason to worry.
----- ! PTB - WARNING: SYNCHRONIZATION TROUBLE ! ----
One or more internal checks (see Warnings above) indicate that
queries of rasterbeam position are not properly working for your setup.
Psychtoolbox will work around this by using a different timing algorithm,
but it will cause Screen(‘Flip’) to report less accurate/robust timestamps
for stimulus timing.
Read ‘help BeampositionQueries’ for more info and troubleshooting tips.
PTB-INFO: Support for fast OffscreenWindows enabled.
0, 0 1
1, 0 0
2, 0 0
3, 0 0
4, 0 0
5, 0 0
6, 0 0
7, 0 1
addr 0: 49168, 0
setting up access to pport
iopl: -1 (Operation not permitted)
Error using ppMex
couldn’t claim address space
Error in pp (line 316)
input = inv(ppMex([uint64(ports(:))
Error in Send_TTL_Now (line 7)
pp(uint8([2 3 4 5 6 7 8 9]), TTL, slowChecks, port, address); %send trigger
Error in IM_LA (line 56)
Send_TTL_Now(Resp_1) %Send test TTL and clear port