Anyone use Tobii EPU (X3-120) with MacOS?

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1

Does anybody uses tobii X3-120 with EPU(External Processing Unit) in Mac environment with PsychoPy?

The PsychoPy experiment using tobiiresearch works weird in Mac OS.
Below are tested.
-tested with two X3-120 with EPU in two different Mac Pro with High Sierra (2x2 design…) and same issue.
-run same experiment with Tobii Pro Nano, Tobii Pro Fusion, 4C (All USB trackers, and all works fine).
-run simplified version of experiment with X3-120 with EPU in Windows (works).
-replace tobiiresearch to fresh downloaded 1.7, and 1.8 of Psychopy’s python library folder. (no change).

When EPU with X3-120 connected, everything works fine in Tobii Eyetracker manager (calibration, and gaze display for long time). Even calibration works properly by calling it inside PsychoPy.

However in actual experiment, after <.05 sec, the connection is lost and all nan gazes are subscribed. Also found the pause script for movie3 ‘fails’ after the point of gaze stream lose.

17.6841 EXP Failed Set tmstim_01 paused
17.6841 EXP Failed Set tmstim_03 paused
17.6841 EXP Failed Set tmstim_48_04 paused
17.6841 EXP Failed Set tmstim_48_05 paused
17.6841 EXP Failed Set tmstim_48_06 paused
17.6841 EXP Failed Set tmstim_07 paused
17.6841 EXP Failed Set tmstim_48_08 paused

So, I am suspicious about the asynchronous ‘subscription’ process.
Below attached the test code and recorded symptom.
Movie_Version_gazeonly.psyexp (33.7 KB)

OS Mac OS High Sierra
PsychoPy version (e.g. 1.84.x): 2021.1.4
Standard Standalone? (y/n) If not then what?:y

2

replied to the github issue you posted here.

3

@sol
Thanks for kind reply.
But, the attached simple script freezes in the exactly same way. when executed with the StandAlone Runner.
tobiitest2.py (988 Bytes)

4

The issue is (temporally)resolved to force downgrade tobii_research >1.6.2 .
Replacing the library with 1.6.1 makes the x3-120 works great.

5

Hi, I’m embarking on this process soon and I’m wondering whether you were able to successfully use the X3-120 in PsychoPy on a Mac? If so, do you have a sample experiment by chance? How did you force downgrade tobii_research?

Thanks!

6

copy and paste the tobii_research package from previous version of PsychoPy will works.