Log file producing blendMode='avg' line every 10-50ms

Builder
1

Hi, I am using the PsychoPy builder v1.85.4. This issue occurs whether I run it using mac or PC. The log file outputs “blendMode=‘avg’” about every 10-50ms. This is causing the logging flush to take a very long time. I have tried various pieces of code such as win.setBlendMode(‘avg’,log=None) and inserting autoLog=False into the piece of code which sets up the window, but they produced no changes, and removed all important lines from the log (not just blendMode=‘avg’), respectively. How would I go about logging the important experiment data while removing the extra lines about the blendMode? Below are a few lines from the log file:

28.6560 EXP window1: blendMode = 'avg’
28.6564 EXP window1: blendMode = 'avg’
28.6727 EXP window1: blendMode = 'avg’
28.6730 EXP window1: blendMode = 'avg’
28.6893 EXP window1: blendMode = 'avg’
28.6897 EXP window1: blendMode = 'avg’
28.7060 EXP window1: blendMode = 'avg’
28.7064 EXP window1: blendMode = 'avg’
28.7227 EXP window1: blendMode = 'avg’
28.7230 EXP window1: blendMode = 'avg’
28.7393 EXP window1: blendMode = ‘avg’

Thanks in advance,
Mark

1 Like
2

I just want to add that I’m having the same problem and it’s causing my task to stall once the log file becomes too large.

2 Likes
3

I’m also seeing this behaviour, and it’s kind-of annoying when trying to debug timing issues using the log file. Is there any fix for this?

Thanks,

Matt.

4

Hi all,

I also have this problem and in the process of debugging the code.
Do you use the launchScan or SyncGenerator functionality or a visual rating scale?

EDIT: found the answer
In PsychoPy 1.85.6 edit file \Lib\site-packages\psychopy\visual\test.py
change line 754:
win.blendMode = blendMode
to
win.setBlendMode(blendMode, log=False)

Pieter